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    195 Products

    Square D Load-Center Circuit Breakers

    Match these circuit breakers to Square D breaker boxes or panel boards of the same manufacturer series. Because they are thermal-magnetic, these breakers trip two different ways. They either trip when heat is generated by sustained low-level overload current or quickly when the magnetic coil senses a high-current short circuit.
    QO Series
    Image of Product. QO Series, 1 Pole. Front orientation. Circuit Breakers. Square D Load-Center Circuit Breakers, QO Series, 1 Pole—Toggle-Switch Style.
    Image of Product. QO Series, 2 Poles. Front orientation. Circuit Breakers. Square D Load-Center Circuit Breakers, QO Series, 2 Poles—Toggle Switch.
    Image of Product. QO Series, 3 Poles. Front orientation. Circuit Breakers. Square D Load-Center Circuit Breakers, QO Series, 3 Poles—Toggle Switch.

    QO

    Series, 1

    Pole

    QO Series,

    2 Poles

    QO Series, 3

    Poles

    UL 489—They meet UL 489 requirements for branch circuit protection, so they protect downstream equipment and wiring from overloads and short circuits.
    Breakthrough Current @ Voltage—Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit.
    Current,
    A
    Voltage
    Freq., Hz
    Breakthrough Current @ Voltage
    Mounting
    Location
    Wire Connection
    Method
    Wd.
    Specs.
    Met
    Certification
    Each
    1 Pole—Toggle-Switch Style
    1548V DC
    120V AC
    240V AC    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC
    5,000 amp @ 48V DC    		Breaker BoxSnap On3/4"UL 489UL Listed
    		6782K112000000
    2048V DC
    120V AC
    240V AC    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC
    5,000 amp @ 48V DC    		Breaker BoxSnap On3/4"UL 489UL Listed
    		6782K11300000
    30120V AC
    240V AC    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxSnap On3/4"UL 489UL Listed
    		6782K1200000
    4048V DC
    120V AC
    240V AC    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC
    5,000 amp @ 48V DC    		Breaker BoxSnap On3/4"UL 489UL Listed
    		6782K30100000
     
    2 Poles—Toggle Switch
    1548V DC
    120V AC
    240V AC    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC
    5,000 amp @ 48V DC    		Breaker BoxSnap On1 1/2"UL 489UL Listed
    		6782K21200000
    2048V DC
    120V AC
    240V AC    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC
    5,000 amp @ 48V DC    		Breaker BoxSnap On1 1/2"UL 489UL Listed
    		6782K21300000
    3048V DC
    120V AC
    240V AC    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC
    5,000 amp @ 48V DC    		Breaker BoxSnap On1 1/2"UL 489UL Listed
    		6782K21400000
    4048V DC
    120V AC
    240V AC    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC
    5,000 amp @ 48V DC    		Breaker BoxSnap On1 1/2"UL 489UL Listed
    		6782K21500000
    50 48V DC
    120V AC
    240V AC    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC
    5,000 amp @ 48V DC    		Breaker BoxSnap On1 1/2"UL 489UL Listed
    		6782K21600000
    6048V DC
    120V AC
    240V AC    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC
    5,000 amp @ 48V DC    		Breaker BoxSnap On1 1/2"UL 489UL Listed
    		6782K21700000
    7048V DC
    120V AC
    240V AC    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC
    5,000 amp @ 48V DC    		Breaker BoxSnap On1 1/2"UL 489UL Listed
    		6782K22000000
     
    3 Poles—Toggle Switch
    1548V DC
    120V AC
    240V AC    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC
    5,000 amp @ 48V DC    		Breaker BoxSnap On2 1/4"UL 489UL Listed
    		6782K306000000
    2048V DC
    120V AC
    240V AC    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC
    5,000 amp @ 48V DC    		Breaker BoxSnap On2 1/4"UL 489UL Listed
    		6782K307000000
    3048V DC
    120V AC
    240V AC    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC
    5,000 amp @ 48V DC    		Breaker BoxSnap On2 1/4"UL 489UL Listed
    		6782K308000000
    4048V DC
    120V AC
    240V AC    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC
    5,000 amp @ 48V DC    		Breaker BoxSnap On2 1/4"UL 489UL Listed
    		6782K309000000
     
    QO Series with 6 mA Ground Fault Sensitivity
    Image of Product. QO Series, 1 Pole. Front orientation. Circuit Breakers. Square D Load-Center Circuit Breakers, QO Series, 1 Pole—Toggle-Switch Style.
    Image of Product. QO Series, 2 Poles. Front orientation. Circuit Breakers. Square D Load-Center Circuit Breakers, QO Series, 2 Poles—Toggle Switch.

    QO

    Series, 1

    Pole

    QO Series,

    2 Poles

    Circuit breakers with ground fault sensitivity will trip if they detect a current leak above 6 mA. This minimizes the risk of electric shock to workers and equipment.
    UL 489—They meet UL 489 requirements for branch circuit protection, so they protect downstream equipment and wiring from overloads and short circuits.
    Breakthrough Current @ Voltage—Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit.
    Current,
    A
    Voltage, V AC
    Freq., Hz
    Breakthrough Current @ Voltage
    Mounting
    Location
    Wire Connection
    Method
    Wd.
    Specs.
    Met
    Certification
    Each
    1 Pole—Toggle-Switch Style
    2012050/6010,000 amp @ 120V ACBreaker BoxSnap On3/4"UL 489UL Listed
    		6782K3020000000
    3012050/6010,000 amp @ 120V ACBreaker BoxSnap On3/4"UL 489UL Listed
    		6782K303000000
     
    2 Poles—Toggle Switch
    20120
    240    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxSnap On1.5"UL 489UL Listed
    		6782K304000000
    30120
    240    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxSnap On1.5"UL 489UL Listed
    		6782K305000000
     
    QOB Series
    Image of Product. QOB Series, 1 Pole. Front orientation. Circuit Breakers. Square D Load-Center Circuit Breakers, QOB Series, 1 Pole—Toggle-Switch Style.
    Image of Product. QOB Series, 2 Poles. Front orientation. Circuit Breakers. Square D Load-Center Circuit Breakers, QOB Series, 2 Poles—Toggle Switch.
    Image of Product. QOB Series, 3 Poles. Front orientation. Circuit Breakers. Square D Load-Center Circuit Breakers, QOB Series, 3 Poles—Toggle Switch.

    QOB

    Series,

    1 Pole

    QOB

    Series, 2

    Poles

    QOB Series,

    3 Poles

    UL 489—They meet UL 489 requirements for branch circuit protection, so they protect downstream equipment and wiring from overloads and short circuits.
    Breakthrough Current @ Voltage—Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit.
    Current,
    A
    Voltage
    Freq., Hz
    Breakthrough Current @ Voltage
    Mounting
    Location
    Wire Connection
    Wd.
    Specs.
    Met
    Certification
    Each
    1 Pole—Toggle-Switch Style
    1548V DC
    120V AC
    240V AC    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC
    5,000 amp @ 48V DC    		Panel BoardScrew-Clamp Terminal3/4"UL 489UL Listed
    		6782K511000000
    2048V DC
    120V AC
    240V AC    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC
    5,000 amp @ 48V DC    		Panel BoardScrew-Clamp Terminal3/4"UL 489UL Listed
    		6782K51200000
    3048V DC
    120V AC
    240V AC    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC
    5,000 amp @ 48V DC    		Panel BoardScrew-Clamp Terminal3/4"UL 489UL Listed
    		6782K51300000
    4048V DC
    120V AC
    240V AC    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC
    5,000 amp @ 48V DC    		Panel BoardScrew-Clamp Terminal3/4"UL 489UL Listed
    		6782K3100000
     
    2 Poles—Toggle Switch
    1548V DC
    120V AC
    240V AC    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC
    5,000 amp @ 48V DC    		Panel BoardScrew-Clamp Terminal1 1/2"UL 489UL Listed
    		6782K61100000
    2048V DC
    120V AC
    240V AC    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC
    5,000 amp @ 48V DC    		Panel BoardScrew-Clamp Terminal1 1/2"UL 489UL Listed
    		6782K61200000
    3048V DC
    120V AC
    240V AC    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC
    5,000 amp @ 48V DC    		Panel BoardScrew-Clamp Terminal1 1/2"UL 489UL Listed
    		6782K61300000
    4048V DC
    120V AC
    240V AC    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC
    5,000 amp @ 48V DC    		Panel BoardScrew-Clamp Terminal1 1/2"UL 489UL Listed
    		6782K31100000
     
    3 Poles—Toggle Switch
    1548V DC
    120V AC
    240V AC    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC
    5,000 amp @ 48V DC    		Panel BoardScrew-Clamp Terminal2 1/4"UL 489UL Listed
    		6782K711000000
    2048V DC
    120V AC
    240V AC    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC
    5,000 amp @ 48V DC    		Panel BoardScrew-Clamp Terminal2 1/4"UL 489UL Listed
    		6782K712000000
    3048V DC
    120V AC
    240V AC    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC
    5,000 amp @ 48V DC    		Panel BoardScrew-Clamp Terminal2 1/4"UL 489UL Listed
    		6782K713000000
    4048V DC
    120V AC
    240V AC    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC
    5,000 amp @ 48V DC    		Panel BoardScrew-Clamp Terminal2 1/4"UL 489UL Listed
    		6782K312000000
    50 48V DC
    120V AC
    240V AC    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC
    5,000 amp @ 48V DC    		Panel BoardScrew-Clamp Terminal2 1/4"UL 489UL Listed
    		6782K313000000
    6048V DC
    120V AC
    240V AC    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC
    5,000 amp @ 48V DC    		Panel BoardScrew-Clamp Terminal2 1/4"UL 489UL Listed
    		6782K314000000
     
    Homeline Series
    Image of Product. Homeline Series, 1 Pole. Front orientation. Circuit Breakers. Square D Load-Center Circuit Breakers, Homeline Series, 1 Pole—Toggle-Switch Style.
    Image of Product. Homeline Series, 2 Poles. Front orientation. Circuit Breakers. Square D Load-Center Circuit Breakers, Homeline Series, 1 Pole with Tandem Circuit—Toggle Switch.
    Image of Product. Homeline Series, 3 Poles. Front orientation. Circuit Breakers. Square D Load-Center Circuit Breakers, Homeline Series, 2 Poles—Toggle Switch.

    Homeline

    Series, 1

    Pole

    Homeline

    Series, 2

    Poles

    Homeline

    Series, 3

    Poles

    UL 489—They meet UL 489 requirements for branch circuit protection, so they protect downstream equipment and wiring from overloads and short circuits.
    Breakthrough Current @ Voltage—Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit.
    Current,
    A
    Voltage, V AC
    Freq., Hz
    Breakthrough Current @ Voltage
    Mounting
    Location
    Wire Connection
    Method
    Wd.
    Specs.
    Met
    Certification
    Each
    1 Pole—Toggle-Switch Style
    15120
    240    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxSnap On1"UL 489UL Listed
    		69225K71000000
    20120
    240    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxSnap On1"UL 489UL Listed
    		69225K7200000
    30120
    240    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxSnap On1"UL 489UL Listed
    		69225K7300000
    40120
    240    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxSnap On1"UL 489UL Listed
    		69225K9100000
    50 120
    240    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxSnap On1"UL 489UL Listed
    		69225K10100000
     
    1 Pole with Tandem Circuit—Toggle Switch
    20120
    240    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxSnap On1"UL 489UL Listed
    		69225K8400000
     
    2 Poles—Toggle Switch
    15120
    240    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxSnap On2"UL 489UL Listed
    		69225K9200000
    20120
    240    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxSnap On2"UL 489UL Listed
    		69225K7500000
    30120
    240    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxSnap On2"UL 489UL Listed
    		69225K7600000
    40120
    240    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxSnap On2"UL 489UL Listed
    		69225K7700000
    50 120
    240    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxSnap On2"UL 489UL Listed
    		69225K10200000
    60120
    240    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxSnap On2"UL 489UL Listed
    		69225K10300000
     
    Homeline Series with 6 mA Ground Fault Sensitivity
    Image of Product. Homeline Series, 1 Pole. Front orientation. Circuit Breakers. Square D Load-Center Circuit Breakers, Homeline Series, 1 Pole—Toggle-Switch Style.
    Image of Product. Homeline Series, 3 Poles. Front orientation. Circuit Breakers. Square D Load-Center Circuit Breakers, Homeline Series, 2 Poles—Toggle Switch.

    Homeline

    Series, 1

    Pole

    Homeline

    Series, 3

    Poles

    Circuit breakers with ground fault sensitivity will trip if they detect a current leak above 6 mA. This minimizes the risk of electric shock to workers and equipment.
    UL 489—They meet UL 489 requirements for branch circuit protection, so they protect downstream equipment and wiring from overloads and short circuits.
    Breakthrough Current @ Voltage—Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit.
    Current,
    A
    Voltage, V AC
    Freq., Hz
    Breakthrough Current @ Voltage
    Mounting
    Location
    Wire Connection
    Method
    Wd.
    Specs.
    Met
    Certification
    Each
    1 Pole—Toggle-Switch Style
    2012050/6010,000 amp @ 120V ACBreaker BoxSnap On1"UL 489UL Listed
    		69225K820000000
     
    2 Poles—Toggle Switch
    20120
    240    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxSnap On2"UL 489UL Listed
    		69225K104000000
    30120
    240    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxSnap On2"UL 489UL Listed
    		69225K105000000
     

    DIN-Rail Mount Branch Circuit Breakers

    Image of ProductInUse. Front orientation. Circuit Breakers. DIN-Rail Mount Branch Circuit Breakers.
    Image of Product. Extension Terminal. Front orientation. Circuit Breakers. DIN-Rail Mount Branch Circuit Breakers.
    Image of Product. Distribution Bar Terminal Cover. Front orientation. Circuit Breakers. DIN-Rail Mount Branch Circuit Breakers.
    Image of Product. Shunt Trip. Front orientation. Circuit Breakers. DIN-Rail Mount Branch Circuit Breakers.

    Extension

    Terminal

    Distribution

    Bar Terminal

    Cover

    Shunt

    Trip

    Image of Product. Auxiliary Contact. Front orientation. Circuit Breakers. DIN-Rail Mount Branch Circuit Breakers.
    Image of Product. Distribution Bar. Front orientation. Circuit Breakers. DIN-Rail Mount Branch Circuit Breakers.

    Auxiliary

    Contact

    Distribution Bar

    Distribution bar terminal covers shield unused, live terminals on distribution bars to prevent injury and damage.
    Auxiliary contacts send a signal to other equipment when the circuit trips. They can activate a warning light, initiate a shutdown, or start a backup power source.
    Shunt trips receive a signal from equipment to trip your circuit breaker in situations other than overload or short circuit conditions. For example, use them with a smoke detector to shut off power to a system in the event of a fire.
    Extension terminals raise the wire connection point above distribution bars for easy access to connect power to a set of circuit breakers.
    Mount these circuit breakers directly to DIN rail to protect equipment and wiring in an area of your facility from overloads and short circuits. Because they are thermal-magnetic, these breakers trip two ways. They either trip when heat is generated slowly by consistent low-level overload current, or they trip quickly when the magnetic coil senses a high-current short circuit.
    Distribution bars simplify wiring by powering multiple adjacent circuit breakers without needing separate wires for each one. This cuts down on assembly time and space.
    B Trip
    Image of Product. Front orientation. Circuit Breakers. DIN-Rail Mount Branch Circuit Breakers, 1 Pole—Toggle-Switch Style.
    Image of Product. Front orientation. Circuit Breakers. DIN-Rail Mount Branch Circuit Breakers, 2 Poles—Toggle-Switch Style.
    Image of Product. Front orientation. Circuit Breakers. DIN-Rail Mount Branch Circuit Breakers, 3 Poles—Toggle-Switch Style.

    1

    Pole—Toggle-Switch

    Style

    2

    Poles—Toggle-Switch

    Style

    3

    Poles—Toggle-Switch

    Style

    B-trip circuit breakers are best for protecting sensitive equipment, such as programmable logic controllers (PLCs) and sensors, which could be damaged by a spike in current. These circuit breakers will trip if a rush of current reaches 3 to 5 times their rated current.
    UL 489—They meet UL 489 requirements for branch circuit protection and are certified as current limiting, so they protect equipment by minimizing passing current during a short circuit.
    Voltage
    Freq., Hz
    For DIN
    Rail Size, mm
    Wire Connection
    Ht.
    Wd.
    Dp.
    Temp. Range,
    ° F
    Specs. Met
    Certification
    Choose a Current, A
    Each
    1 Pole—Toggle-Switch Style
    48V DC
    277V AC    		50/6035Screw-Clamp Terminal4.13"0.7"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		1, 5, 10, 15, 20, 305789T201000000
     
    2 Poles—Toggle-Switch Style
    96V DC
    277V AC
    480YV AC/277V AC    		50/6035Screw-Clamp Terminal4.13"1.4"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		1, 5, 10, 15, 20, 305789T20200000
     
    3 Poles—Toggle-Switch Style
    277V AC
    480YV AC/277V AC    		50/6035Screw-Clamp Terminal4.13"2.09"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		1, 5, 10, 15, 20, 305789T203000000
     
    Accessories for Circuit Breakers
    Shunt Trips
    Min. Voltage
    Max. Voltage
    Current,
    amp
    Freq., Hz
    For DIN
    Rail Size, mm
    Wire Connection
    Ht.
    Wd.
    Dp.
    Temp. Range,
    ° F
    Specs. Met
    Certification
    Each
    12V AC/12V DC110V AC/60V DC6350/6035Screw-Clamp Terminal4.13"0.7"2.36"25 to 100UL 489, IEC 60898UL Listed, CSA Certified, CE Marked
    		5789T474000000
    110V AC/110V DC415V AC/230V DC4050/6035Screw-Clamp Terminal4.13"0.7"2.36"25 to 100UL 489, IEC 60898UL Listed, CSA Certified, CE Marked
    		5789T47500000
    Auxiliary Contacts
    Voltage,
    V AC
    Current,
    amp
    Freq., Hz
    Switch
    Designation
    No. of Circuits
    Controlled
    Switch Starting
    Position
    For DIN
    Rail Size, mm
    Wire Connection
    Ht.
    Wd.
    Dp.
    Temp. Range,
    ° F
    Specs. Met
    Certification
    Each
    250650/60DPST
    		21 Off and 1 On
    		35Screw-Clamp Terminal3.78"0.35"2.36"-10 to 165UL 489, IEC 60898UL Listed, CSA Certified, CE Marked
    		5789T473000000
    Distribution Bars
    Terminal
    For No.
    of Poles
    No. of
    Terminals
    Voltage
    Current,
    amp
    Freq., Hz
    Ctr.-to-Ctr.
    Wd.
    Ht.
    Wd.
    Dp.
    Temp. Range,
    ° F
    Specs. Met
    Certification
    Each
    112277V AC
    96V DC
    480YV AC/277V AC    		8050/600.7"0.2"1.28"8.06"0.61"-10 to 165UL 489, IEC 60898UL Recognized Component, CE Marked
    		5789T476000000
    212277V AC
    96V DC
    480YV AC/277V AC    		8050/600.7"0.2"1.28"8.06"0.61"-10 to 165UL 489, IEC 60898UL Recognized Component, CE Marked
    		5789T47700000
    312277V AC
    96V DC
    480YV AC/277V AC    		8050/600.7"0.2"1.28"8.06"0.61"-10 to 165UL 489, IEC 60898UL Recognized Component, CE Marked
    		5789T47800000
    Extension Terminals
    For No.
    of Poles
    Voltage
    Current,
    amp
    Freq., Hz
    Wire Connection
    Ht.
    Wd.
    Dp.
    Temp. Range,
    ° F
    Specs. Met
    Certification
    Each
    1, 2, 3480V AC/96V DC8050/60Screw-Clamp Terminal2.82"0.64"1.23"-10 to 165UL 489, IEC 60898UL Recognized Component, CE Marked
    		5789T48000000
    Distribution Bar Terminal Covers
    For No. of
    Terminals
    Ht.
    Wd.
    Dp.
    Material
    Temp. Range,
    ° F
    Specs. Met
    Certification
    Each
    30.94"1.9"0.63"Plastic-10 to 165UL 489, IEC 60898UL Recognized Component, CE Marked
    		5789T47900000
    C Trip
    C-trip circuit breakers are the most common. They’re best for applications such as lighting and control panels, where equipment startup causes a moderate spike in current. They won’t trip until a rush of current reaches 5 to 10 times their rated current.
    UL 489—They meet UL 489 requirements for branch circuit protection and are certified as current limiting, so they protect equipment by minimizing passing current during a short circuit.
    Breakthrough Current @ Voltage—Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit.
    Voltage
    Freq., Hz
    Breakthrough Current @ Voltage
    For DIN
    Rail Size, mm
    Mounting
    Location
    Wire Connection
    Ht.
    Wd.
    Dp.
    Temp. Range,
    ° F
    Specs. Met
    Certification
    Choose a Current,
    A
    Each
    1 Pole—Toggle-Switch Style
    Image of Product. Front orientation. Circuit Breakers. DIN-Rail Mount Branch Circuit Breakers, 1 Pole—Toggle-Switch Style.
     
    Thermal/Magnetic
    48V DC
    240V AC    		50/6010,000 amp @ 240V AC
    10,000 amp @ 48V DC    		35DIN RailScrew-Clamp Terminal4.13"0.7"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		35, 40, 50 , 635789T204000000
    48V DC
    277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 48V DC    		35DIN RailScrew-Clamp Terminal4.13"0.7"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		1/25789T10100000
    48V DC
    277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 48V DC    		35DIN RailScrew-Clamp Terminal4.13"0.7"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		15789T10200000
    48V DC
    277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 48V DC    		35DIN RailScrew-Clamp Terminal4.13"0.7"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		1 1/25789T10300000
    48V DC
    277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 48V DC    		35DIN RailScrew-Clamp Terminal4.13"0.7"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		25789T10400000
    48V DC
    277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 48V DC    		35DIN RailScrew-Clamp Terminal4.13"0.7"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		35789T10500000
    48V DC
    277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 48V DC    		35DIN RailScrew-Clamp Terminal4.13"0.7"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		45789T10600000
    48V DC
    277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 48V DC    		35DIN RailScrew-Clamp Terminal4.13"0.7"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		55789T7100000
    48V DC
    277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 48V DC    		35DIN RailScrew-Clamp Terminal4.13"0.7"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		65789T10700000
    48V DC
    277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 48V DC    		35DIN RailScrew-Clamp Terminal4.13"0.7"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		75789T10800000
    48V DC
    277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 48V DC    		35DIN RailScrew-Clamp Terminal4.13"0.7"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		85789T10900000
    48V DC
    277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 48V DC    		35DIN RailScrew-Clamp Terminal4.13"0.7"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		105789T7200000
    48V DC
    277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 48V DC    		35DIN RailScrew-Clamp Terminal4.13"0.7"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		135789T11100000
    48V DC
    277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 48V DC    		35DIN RailScrew-Clamp Terminal4.13"0.7"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		305789T7500000
    48V DC
    277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 48V DC    		35DIN RailScrew-Clamp Terminal4.13"0.7"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		325789T11400000
    48V DC
    277V AC    		50/6014,000 amp @ 277V AC
    14,000 amp @ 48V DC    		35DIN RailScrew-Clamp Terminal4.13"0.7"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		155789T7300000
    48V DC
    277V AC    		50/6014,000 amp @ 277V AC
    14,000 amp @ 48V DC    		35DIN RailScrew-Clamp Terminal4.13"0.7"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		165789T11200000
    48V DC
    277V AC    		50/6014,000 amp @ 277V AC
    14,000 amp @ 48V DC    		35DIN RailScrew-Clamp Terminal4.13"0.7"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		205789T7400000
    48V DC
    277V AC    		50/6014,000 amp @ 277V AC
    14,000 amp @ 48V DC    		35DIN RailScrew-Clamp Terminal4.13"0.7"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		255789T11300000
     
    2 Poles—Toggle-Switch Style
    Image of Product. Front orientation. Circuit Breakers. DIN-Rail Mount Branch Circuit Breakers, 2 Poles—Toggle-Switch Style.
     
    Thermal/Magnetic
    96V DC
    240V AC    		50/6010,000 amp @ 240V AC
    10,000 amp @ 96V DC    		35DIN RailScrew-Clamp Terminal4.13"1.4"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		35, 40, 50 , 635789T20600000
    96V DC
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC
    10,000 amp @ 96V DC    		35DIN RailScrew-Clamp Terminal4.13"1.4"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		1/25789T11500000
    96V DC
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC
    10,000 amp @ 96V DC    		35DIN RailScrew-Clamp Terminal4.13"1.4"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		15789T11600000
    96V DC
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC
    10,000 amp @ 96V DC    		35DIN RailScrew-Clamp Terminal4.13"1.4"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		1 1/25789T11700000
    96V DC
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC
    10,000 amp @ 96V DC    		35DIN RailScrew-Clamp Terminal4.13"1.4"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		25789T11800000
    96V DC
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC
    10,000 amp @ 96V DC    		35DIN RailScrew-Clamp Terminal4.13"1.4"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		35789T11900000
    96V DC
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC
    10,000 amp @ 96V DC    		35DIN RailScrew-Clamp Terminal4.13"1.4"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		45789T12100000
    96V DC
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC
    10,000 amp @ 96V DC    		35DIN RailScrew-Clamp Terminal4.13"1.4"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		55789T8100000
    96V DC
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC
    10,000 amp @ 96V DC    		35DIN RailScrew-Clamp Terminal4.13"1.4"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		65789T12200000
    96V DC
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC
    10,000 amp @ 96V DC    		35DIN RailScrew-Clamp Terminal4.13"1.4"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		75789T12300000
    96V DC
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC
    10,000 amp @ 96V DC    		35DIN RailScrew-Clamp Terminal4.13"1.4"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		85789T12400000
    96V DC
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC
    10,000 amp @ 96V DC    		35DIN RailScrew-Clamp Terminal4.13"1.4"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		105789T8200000
    96V DC
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC
    10,000 amp @ 96V DC    		35DIN RailScrew-Clamp Terminal4.13"1.4"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		135789T12500000
    96V DC
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC
    10,000 amp @ 96V DC    		35DIN RailScrew-Clamp Terminal4.13"1.4"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		305789T8500000
    96V DC
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC
    10,000 amp @ 96V DC    		35DIN RailScrew-Clamp Terminal4.13"1.4"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		325789T12800000
    96V DC
    277V AC
    480YV AC/277V AC    		50/6014,000 amp @ 277V AC
    14,000 amp @ 480V AC
    14,000 amp @ 96V DC    		35DIN RailScrew-Clamp Terminal4.13"1.4"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		155789T8300000
    96V DC
    277V AC
    480YV AC/277V AC    		50/6014,000 amp @ 277V AC
    14,000 amp @ 480V AC
    14,000 amp @ 96V DC    		35DIN RailScrew-Clamp Terminal4.13"1.4"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		165789T12600000
    96V DC
    277V AC
    480YV AC/277V AC    		50/6014,000 amp @ 277V AC
    14,000 amp @ 480V AC
    14,000 amp @ 96V DC    		35DIN RailScrew-Clamp Terminal4.13"1.4"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		205789T8400000
    96V DC
    277V AC
    480YV AC/277V AC    		50/6014,000 amp @ 277V AC
    14,000 amp @ 480V AC
    14,000 amp @ 96V DC    		35DIN RailScrew-Clamp Terminal4.13"1.4"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		255789T12700000
    250V DC
    125V DC    		50/6010,000 amp @ 125V DC
    10,000 amp @ 250V DC    		35DIN RailScrew-Clamp Terminal4.13"1.4"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		2, 5, 10, 15, 205789T20500000
     
    3 Poles—Toggle-Switch Style
    Image of Product. Front orientation. Circuit Breakers. DIN-Rail Mount Branch Circuit Breakers, 3 Poles—Toggle-Switch Style.
     
    Thermal/Magnetic
    240V AC50/6010,000 amp @ 240V AC35DIN RailScrew-Clamp Terminal4.13"2.09"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		35, 405789T207000000
    240V AC50/6010,000 amp @ 240V AC35DIN RailScrew-Clamp Terminal4.13"2.09"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		50 , 635789T208000000
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC    		35DIN RailScrew-Clamp Terminal4.13"2.09"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		1/25789T129000000
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC    		35DIN RailScrew-Clamp Terminal4.13"2.09"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		15789T131000000
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC    		35DIN RailScrew-Clamp Terminal4.13"2.09"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		1 1/25789T132000000
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC    		35DIN RailScrew-Clamp Terminal4.13"2.09"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		25789T133000000
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC    		35DIN RailScrew-Clamp Terminal4.13"2.09"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		35789T134000000
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC    		35DIN RailScrew-Clamp Terminal4.13"2.09"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		45789T135000000
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC    		35DIN RailScrew-Clamp Terminal4.13"2.09"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		55789T91000000
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC    		35DIN RailScrew-Clamp Terminal4.13"2.09"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		65789T136000000
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC    		35DIN RailScrew-Clamp Terminal4.13"2.09"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		75789T137000000
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC    		35DIN RailScrew-Clamp Terminal4.13"2.09"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		85789T138000000
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC    		35DIN RailScrew-Clamp Terminal4.13"2.09"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		105789T92000000
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC    		35DIN RailScrew-Clamp Terminal4.13"2.09"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		135789T139000000
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC    		35DIN RailScrew-Clamp Terminal4.13"2.09"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		305789T95000000
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC    		35DIN RailScrew-Clamp Terminal4.13"2.09"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		325789T143000000
    277V AC
    480YV AC/277V AC    		50/6014,000 amp @ 277V AC
    14,000 amp @ 480V AC    		35DIN RailScrew-Clamp Terminal4.13"2.09"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		155789T93000000
    277V AC
    480YV AC/277V AC    		50/6014,000 amp @ 277V AC
    14,000 amp @ 480V AC    		35DIN RailScrew-Clamp Terminal4.13"2.09"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		165789T141000000
    277V AC
    480YV AC/277V AC    		50/6014,000 amp @ 277V AC
    14,000 amp @ 480V AC    		35DIN RailScrew-Clamp Terminal4.13"2.09"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		205789T94000000
    277V AC
    480YV AC/277V AC    		50/6014,000 amp @ 277V AC
    14,000 amp @ 480V AC    		35DIN RailScrew-Clamp Terminal4.13"2.09"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		255789T142000000
     
    Accessories for Circuit Breakers
    Shunt Trips
    Min. Voltage
    Max. Voltage
    Current,
    amp
    Freq., Hz
    For DIN
    Rail Size, mm
    Wire Connection
    Ht.
    Wd.
    Dp.
    Temp. Range,
    ° F
    Specs. Met
    Certification
    Each
    12V AC/12V DC110V AC/60V DC6350/6035Screw-Clamp Terminal4.13"0.7"2.36"25 to 100UL 489, IEC 60898UL Listed, CSA Certified, CE Marked
    		5789T474000000
    110V AC/110V DC415V AC/230V DC4050/6035Screw-Clamp Terminal4.13"0.7"2.36"25 to 100UL 489, IEC 60898UL Listed, CSA Certified, CE Marked
    		5789T47500000
    Auxiliary Contacts
    Voltage,
    V AC
    Current,
    amp
    Freq., Hz
    Switch
    Designation
    No. of Circuits
    Controlled
    Switch Starting
    Position
    For DIN
    Rail Size, mm
    Wire Connection
    Ht.
    Wd.
    Dp.
    Temp. Range,
    ° F
    Specs. Met
    Certification
    Each
    250650/60DPST
    		21 Off and 1 On
    		35Screw-Clamp Terminal3.78"0.35"2.36"-10 to 165UL 489, IEC 60898UL Listed, CSA Certified, CE Marked
    		5789T473000000
    Distribution Bars
    Terminal
    For No.
    of Poles
    No. of
    Terminals
    Voltage
    Current,
    amp
    Freq., Hz
    Ctr.-to-Ctr.
    Wd.
    Ht.
    Wd.
    Dp.
    Temp. Range,
    ° F
    Specs. Met
    Certification
    Each
    112277V AC
    96V DC
    480YV AC/277V AC    		8050/600.7"0.2"1.28"8.06"0.61"-10 to 165UL 489, IEC 60898UL Recognized Component, CE Marked
    		5789T476000000
    212277V AC
    96V DC
    480YV AC/277V AC    		8050/600.7"0.2"1.28"8.06"0.61"-10 to 165UL 489, IEC 60898UL Recognized Component, CE Marked
    		5789T47700000
    312277V AC
    96V DC
    480YV AC/277V AC    		8050/600.7"0.2"1.28"8.06"0.61"-10 to 165UL 489, IEC 60898UL Recognized Component, CE Marked
    		5789T47800000
    Extension Terminals
    For No.
    of Poles
    Voltage
    Current,
    amp
    Freq., Hz
    Wire Connection
    Ht.
    Wd.
    Dp.
    Temp. Range,
    ° F
    Specs. Met
    Certification
    Each
    1, 2, 3480V AC/96V DC8050/60Screw-Clamp Terminal2.82"0.64"1.23"-10 to 165UL 489, IEC 60898UL Recognized Component, CE Marked
    		5789T48000000
    Distribution Bar Terminal Covers
    For No. of
    Terminals
    Ht.
    Wd.
    Dp.
    Material
    Temp. Range,
    ° F
    Specs. Met
    Certification
    Each
    30.94"1.9"0.63"Plastic-10 to 165UL 489, IEC 60898UL Recognized Component, CE Marked
    		5789T47900000
    D Trip
    D-trip circuit breakers prevent nuisance tripping, so they are best for equipment that has a high spike in current at startup, such as transformers, power supplies, and heaters. They will not trip unless a rush of current reaches 10 to 20 times their rated current.
    UL 489—They meet UL 489 requirements for branch circuit protection and are certified as current limiting, so they protect equipment by minimizing passing current during a short circuit.
    Breakthrough Current @ Voltage—Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit.
    Current,
    A
    Voltage
    Freq., Hz
    Breakthrough Current @ Voltage
    For DIN
    Rail Size, mm
    Mounting
    Location
    Wire Connection
    Ht.
    Wd.
    Dp.
    Temp. Range,
    ° F
    Specs. Met
    Certification
    Each
    1 Pole—Toggle-Switch Style
    Image of Product. Front orientation. Circuit Breakers. DIN-Rail Mount Branch Circuit Breakers, 1 Pole—Toggle-Switch Style.
     
    Thermal/Magnetic
    148V DC
    277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 48V DC    		35DIN RailScrew-Clamp Terminal4.13"0.7"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T438000000
    248V DC
    277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 48V DC    		35DIN RailScrew-Clamp Terminal4.13"0.7"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T41100000
    348V DC
    277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 48V DC    		35DIN RailScrew-Clamp Terminal4.13"0.7"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T41200000
    448V DC
    277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 48V DC    		35DIN RailScrew-Clamp Terminal4.13"0.7"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T43900000
    548V DC
    277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 48V DC    		35DIN RailScrew-Clamp Terminal4.13"0.7"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T41300000
    648V DC
    277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 48V DC    		35DIN RailScrew-Clamp Terminal4.13"0.7"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T4400000
    848V DC
    277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 48V DC    		35DIN RailScrew-Clamp Terminal4.13"0.7"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T44100000
    1048V DC
    277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 48V DC    		35DIN RailScrew-Clamp Terminal4.13"0.7"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T41400000
    1548V DC
    277V AC    		50/6014,000 amp @ 277V AC
    14,000 amp @ 48V DC    		35DIN RailScrew-Clamp Terminal4.13"0.7"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T41500000
    2048V DC
    277V AC    		50/6014,000 amp @ 277V AC
    14,000 amp @ 48V DC    		35DIN RailScrew-Clamp Terminal4.13"0.7"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T41600000
    2548V DC
    277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 48V DC    		35DIN RailScrew-Clamp Terminal4.13"0.7"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T44200000
    3048V DC
    277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 48V DC    		35DIN RailScrew-Clamp Terminal4.13"0.7"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T41700000
    4048V DC
    240V AC    		50/6010,000 amp @ 240V AC
    10,000 amp @ 48V DC    		35DIN RailScrew-Clamp Terminal4.13"0.7"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T44300000
     
    2 Poles—Toggle-Switch Style
    Image of Product. Front orientation. Circuit Breakers. DIN-Rail Mount Branch Circuit Breakers, 2 Poles—Toggle-Switch Style.
     
    Thermal/Magnetic
    196V DC
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC
    10,000 amp @ 96V DC    		35DIN RailScrew-Clamp Terminal4.13"1.4"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T44400000
    296V DC
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC
    10,000 amp @ 96V DC    		35DIN RailScrew-Clamp Terminal4.13"1.4"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T51100000
    396V DC
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC
    10,000 amp @ 96V DC    		35DIN RailScrew-Clamp Terminal4.13"1.4"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T51200000
    496V DC
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC
    10,000 amp @ 96V DC    		35DIN RailScrew-Clamp Terminal4.13"1.4"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T44500000
    596V DC
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC
    10,000 amp @ 96V DC    		35DIN RailScrew-Clamp Terminal4.13"1.4"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T51300000
    696V DC
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC
    10,000 amp @ 96V DC    		35DIN RailScrew-Clamp Terminal4.13"1.4"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T44600000
    896V DC
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC
    10,000 amp @ 96V DC    		35DIN RailScrew-Clamp Terminal4.13"1.4"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T44700000
    1096V DC
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC
    10,000 amp @ 96V DC    		35DIN RailScrew-Clamp Terminal4.13"1.4"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T51400000
    1596V DC
    277V AC
    480YV AC/277V AC    		50/6014,000 amp @ 277V AC
    14,000 amp @ 480V AC
    14,000 amp @ 96V DC    		35DIN RailScrew-Clamp Terminal4.13"1.4"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T51500000
    2096V DC
    277V AC
    480YV AC/277V AC    		50/6014,000 amp @ 277V AC
    14,000 amp @ 480V AC
    14,000 amp @ 96V DC    		35DIN RailScrew-Clamp Terminal4.13"1.4"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T51600000
    2596V DC
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC
    10,000 amp @ 96V DC    		35DIN RailScrew-Clamp Terminal4.13"1.4"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T44800000
    3096V DC
    277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC
    10,000 amp @ 96V DC    		35DIN RailScrew-Clamp Terminal4.13"1.4"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T51700000
    4096V DC
    240V AC    		50/6010,000 amp @ 240V AC
    10,000 amp @ 96V DC    		35DIN RailScrew-Clamp Terminal4.13"1.4"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T44900000
     
    3 Poles—Toggle-Switch Style
    Image of Product. Front orientation. Circuit Breakers. DIN-Rail Mount Branch Circuit Breakers, 3 Poles—Toggle-Switch Style.
     
    Thermal/Magnetic
    1277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC    		35DIN RailScrew-Clamp Terminal4.13"2.09"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T45000000
    2277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC    		35DIN RailScrew-Clamp Terminal4.13"2.09"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T611000000
    3277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC    		35DIN RailScrew-Clamp Terminal4.13"2.09"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T612000000
    4277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC    		35DIN RailScrew-Clamp Terminal4.13"2.09"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T451000000
    5277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC    		35DIN RailScrew-Clamp Terminal4.13"2.09"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T613000000
    6277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC    		35DIN RailScrew-Clamp Terminal4.13"2.09"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T452000000
    8277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC    		35DIN RailScrew-Clamp Terminal4.13"2.09"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T453000000
    10277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC    		35DIN RailScrew-Clamp Terminal4.13"2.09"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T614000000
    15277V AC
    480YV AC/277V AC    		50/6014,000 amp @ 277V AC
    14,000 amp @ 480V AC    		35DIN RailScrew-Clamp Terminal4.13"2.09"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T615000000
    20277V AC
    480YV AC/277V AC    		50/6014,000 amp @ 277V AC
    14,000 amp @ 480V AC    		35DIN RailScrew-Clamp Terminal4.13"2.09"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T616000000
    25277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC    		35DIN RailScrew-Clamp Terminal4.13"2.09"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T454000000
    30277V AC
    480YV AC/277V AC    		50/6010,000 amp @ 277V AC
    10,000 amp @ 480V AC    		35DIN RailScrew-Clamp Terminal4.13"2.09"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T617000000
    40240V AC50/6010,000 amp @ 240V AC35DIN RailScrew-Clamp Terminal4.13"2.09"2.36"-10 to 165UL 489, IEC 60947-2CSA Certified, CE Marked
    		5789T455000000
     
    Accessories for Circuit Breakers
    Shunt Trips
    Min. Voltage
    Max. Voltage
    Current,
    amp
    Freq., Hz
    For DIN
    Rail Size, mm
    Wire Connection
    Ht.
    Wd.
    Dp.
    Temp. Range,
    ° F
    Specs. Met
    Certification
    Each
    12V AC/12V DC110V AC/60V DC6350/6035Screw-Clamp Terminal4.13"0.7"2.36"25 to 100UL 489, IEC 60898UL Listed, CSA Certified, CE Marked
    		5789T474000000
    110V AC/110V DC415V AC/230V DC4050/6035Screw-Clamp Terminal4.13"0.7"2.36"25 to 100UL 489, IEC 60898UL Listed, CSA Certified, CE Marked
    		5789T47500000
    Auxiliary Contacts
    Voltage,
    V AC
    Current,
    amp
    Freq., Hz
    Switch
    Designation
    No. of Circuits
    Controlled
    Switch Starting
    Position
    For DIN
    Rail Size, mm
    Wire Connection
    Ht.
    Wd.
    Dp.
    Temp. Range,
    ° F
    Specs. Met
    Certification
    Each
    250650/60DPST
    		21 Off and 1 On
    		35Screw-Clamp Terminal3.78"0.35"2.36"-10 to 165UL 489, IEC 60898UL Listed, CSA Certified, CE Marked
    		5789T473000000
    Distribution Bars
    Terminal
    For No.
    of Poles
    No. of
    Terminals
    Voltage
    Current,
    amp
    Freq., Hz
    Ctr.-to-Ctr.
    Wd.
    Ht.
    Wd.
    Dp.
    Temp. Range,
    ° F
    Specs. Met
    Certification
    Each
    112277V AC
    96V DC
    480YV AC/277V AC    		8050/600.7"0.2"1.28"8.06"0.61"-10 to 165UL 489, IEC 60898UL Recognized Component, CE Marked
    		5789T476000000
    212277V AC
    96V DC
    480YV AC/277V AC    		8050/600.7"0.2"1.28"8.06"0.61"-10 to 165UL 489, IEC 60898UL Recognized Component, CE Marked
    		5789T47700000
    312277V AC
    96V DC
    480YV AC/277V AC    		8050/600.7"0.2"1.28"8.06"0.61"-10 to 165UL 489, IEC 60898UL Recognized Component, CE Marked
    		5789T47800000
    Extension Terminals
    For No.
    of Poles
    Voltage
    Current,
    amp
    Freq., Hz
    Wire Connection
    Ht.
    Wd.
    Dp.
    Temp. Range,
    ° F
    Specs. Met
    Certification
    Each
    1, 2, 3480V AC/96V DC8050/60Screw-Clamp Terminal2.82"0.64"1.23"-10 to 165UL 489, IEC 60898UL Recognized Component, CE Marked
    		5789T48000000
    Distribution Bar Terminal Covers
    For No. of
    Terminals
    Ht.
    Wd.
    Dp.
    Material
    Temp. Range,
    ° F
    Specs. Met
    Certification
    Each
    30.94"1.9"0.63"Plastic-10 to 165UL 489, IEC 60898UL Recognized Component, CE Marked
    		5789T47900000

    Siemens Load-Center Circuit Breakers

    Image of Product. Front orientation. Circuit Breakers. Siemens Load-Center Circuit Breakers, 1 Pole—Toggle-Switch Style.
    Image of Product. Front orientation. Circuit Breakers. Siemens Load-Center Circuit Breakers, 2 Poles—Toggle-Switch Style.

    1

    Pole—Toggle-Switch

    Style

    2

    Poles—Toggle-Switch

    Style

    Use with Siemens EQ series breaker boxes. Because they are thermal-magnetic, these circuit breakers trip two different ways. They either trip when heat is generated slowly by consistent low-level overload current or quickly when the magnetic coil senses a high-current short circuit.
    UL 489—These circuit breakers meet UL 489 requirements for branch circuit protection, so they protect downstream equipment and wiring from overloads and short circuits.
    Breakthrough Current @ Voltage—Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit.
    Current,
    A
    Voltage, V AC
    Freq.,
    Hz
    Breakthrough Current @ Voltage
    Mounting
    Location
    Wire Connection
    Wd.
    Specs.
    Met
    Each
    1 Pole—Toggle-Switch Style
     
    Thermal/Magnetic
    15120
    240    		6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxScrew-Clamp Terminal1"UL 4895259T41000000
    20120
    240    		6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxScrew-Clamp Terminal1"UL 4895259T4200000
    30120
    240    		6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxScrew-Clamp Terminal1"UL 4895259T4300000
     
    2 Poles—Toggle-Switch Style
     
    Thermal/Magnetic
    15120
    240    		6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxScrew-Clamp Terminal2"UL 4895259T5100000
    20120
    240    		6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxScrew-Clamp Terminal2"UL 4895259T5200000
    30120
    240    		6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxScrew-Clamp Terminal2"UL 4895259T5300000
    40120
    240    		6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxScrew-Clamp Terminal2"UL 4895259T5400000
    50 120
    240    		6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxScrew-Clamp Terminal2"UL 4895259T5500000
    60120
    240    		6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxScrew-Clamp Terminal2"UL 4895259T5600000
    70120
    240    		6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxScrew-Clamp Terminal2"UL 4895259T600000
     

    High-Power Circuit Breakers

    Image of Product. Shunt Trip. Front orientation. Circuit Breakers. High-Power Circuit Breakers.

    Shunt

    Trip

    Image of Product. Circuit Breaker. Front orientation. Circuit Breakers. High-Power Circuit Breakers.

    Circuit

    Breaker

    Image of Product. Undervoltage Trip. Front orientation. Circuit Breakers. High-Power Circuit Breakers.

    Undervoltage

    Trip

    Protect an area of a facility that has high-powered equipment. These circuit breakers are also known as molded case circuit breakers. Because these breakers are thermal-magnetic, they trip two ways. They either trip when heat is generated slowly by consistent low-level overload current, or they trip quickly when the magnetic coil senses a high-current short circuit. A switch lets you adjust when these breakers magnetically trip, so you don't need to replace them as your application changes. These breakers have internal accessory slots to fit shunt trips, auxiliary contacts, and undervoltage trips, saving space in your setup.
    Undervoltage trips protect equipment from operating with less than their intended voltage by tripping a circuit breaker when the supply voltage drops below a set level. 30 amp to 250 amp breakers can only have one shunt trip or undervoltage trip installed. 400 amp to 600 amp breakers can accommodate one shunt trip and one undervoltage trip at the same time.
    Shunt trips receive a signal from equipment to trip your circuit breaker in situations other than overload or short circuit conditions. For example, use them with a smoke detector to shut off power to a system in the event of a fire. 30 amp to 250 amp breakers can only have one shunt trip or undervoltage trip installed. 400 amp to 600 amp breakers can accommodate one shunt trip and one undervoltage trip at the same time.
    UL 489—They meet UL 489 requirements for branch circuit protection.
    Breakthrough Current @ Voltage—Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit.
    Mounting
    Holes
    Screw On
    Current,
    A
    Voltage
    Freq., Hz
    Breakthrough Current @ Voltage
    Inrush Current Setting, amp
    For DIN
    Rail Size, mm
    Mounting
    Location
    No.
    of
    Dia.
    Mounting Fasteners
    Included
    Wire
    Connection
    Ht.
    Wd.
    Dp.
    Temp. Range,
    ° F
    Specs. Met
    Certification
    Each
    3 Poles—Toggle-Switch Style
     
    Thermal/Magnetic
    30600V DC
    480V AC
    600YV AC/347V AC    		50/6065,000 amp @ 240V AC
    25,000 amp @ 480V AC
    14,000 amp @ 600V AC
    14,000 amp @ 125V DC
    50,000 amp @ 250V DC
    50,000 amp @ 500V DC
    50,000 amp @ 600V DC    		150; 180; 210; 240; 270; 30035DIN Rail411/64"YesTab5.5"3"3"-10 to 155UL 489, IEC 60947-2, IEC 81346-2UL Listed, CE Marked
    		4434N110000000
    60600V DC
    480V AC
    600YV AC/347V AC    		50/6065,000 amp @ 240V AC
    25,000 amp @ 480V AC
    14,000 amp @ 600V AC
    14,000 amp @ 125V DC
    50,000 amp @ 250V DC
    50,000 amp @ 500V DC
    50,000 amp @ 600V DC    		300; 360; 420; 480; 540; 60035DIN Rail411/64"YesTab5.5"3"3"-10 to 155UL 489, IEC 60947-2, IEC 81346-2UL Listed, CE Marked
    		4434N12000000
    100600V DC
    480V AC
    600YV AC/347V AC    		50/6065,000 amp @ 240V AC
    25,000 amp @ 480V AC
    14,000 amp @ 600V AC
    14,000 amp @ 125V DC
    50,000 amp @ 250V DC
    50,000 amp @ 500V DC
    50,000 amp @ 600V DC    		500; 600; 700; 800; 900; 1,00035DIN Rail411/64"YesTab5.5"3"3"-10 to 155UL 489, IEC 60947-2, IEC 81346-2UL Listed, CE Marked
    		4434N13000000
    125600V DC
    480V AC
    600YV AC/347V AC    		50/6065,000 amp @ 240V AC
    25,000 amp @ 480V AC
    14,000 amp @ 600V AC
    14,000 amp @ 125V DC
    50,000 amp @ 250V DC
    50,000 amp @ 500V DC
    50,000 amp @ 600V DC    		625; 750; 875; 1,000; 1,125; 1,25035DIN Rail411/64"YesTab5.5"3"3"-10 to 155UL 489, IEC 60947-2, IEC 81346-2UL Listed, CE Marked
    		4434N1400000000
    150600V DC
    600V AC
    600YV AC/347V AC    		50/6085,000 amp @ 240V AC
    35,000 amp @ 480V AC
    18,000 amp @ 600V AC
    50,000 amp @ 250V DC
    50,000 amp @ 500V DC
    50,000 amp @ 600V DC    		750; 900; 1,050; 1,200; 1,350; 1,500——43/16"YesTab7.3"4.1"3.3"-10 to 155UL 489, IEC 60947-2, IEC 81346-2UL Listed, CE Marked
    		4434N1500000000
    200600V DC
    600V AC
    600YV AC/347V AC    		50/6085,000 amp @ 240V AC
    35,000 amp @ 480V AC
    18,000 amp @ 600V AC
    50,000 amp @ 250V DC
    50,000 amp @ 500V DC
    50,000 amp @ 600V DC    		1,000; 1,200; 1,400; 1,600; 1,800; 2,000——43/16"YesTab7.3"4.1"3.3"-10 to 155UL 489, IEC 60947-2, IEC 81346-2UL Listed, CE Marked
    		4434N1600000000
    225600V DC
    600V AC
    600YV AC/347V AC    		50/6085,000 amp @ 240V AC
    35,000 amp @ 480V AC
    18,000 amp @ 600V AC
    50,000 amp @ 250V DC
    50,000 amp @ 500V DC
    50,000 amp @ 600V DC    		1,125; 1,350; 1,575; 1,800; 2,025; 2,250——43/16"YesTab7.3"4.1"3.3"-10 to 155UL 489, IEC 60947-2, IEC 81346-2UL Listed, CE Marked
    		4434N1700000000
    250600V DC
    600V AC
    600YV AC/347V AC    		50/6085,000 amp @ 240V AC
    35,000 amp @ 480V AC
    18,000 amp @ 600V AC
    50,000 amp @ 250V DC
    50,000 amp @ 500V DC
    50,000 amp @ 600V DC    		1,250; 1,500; 1,750; 2,000; 2,250; 2,500——43/16"YesTab7.3"4.1"3.3"-10 to 155UL 489, IEC 60947-2, IEC 81346-2UL Listed, CE Marked
    		4434N1800000000
    400750V DC
    600V AC
    600YV AC/347V AC    		50/6085,000 amp @ 240V AC
    35,000 amp @ 480V AC
    18,000 amp @ 600V AC
    50,000 amp @ 600V DC
    10,000 amp @ 750V DC    		2,000; 2,400; 2,800; 3,200; 3,600; 4,000——47/32"YesTab9.8"5.4"5.4"-10 to 155UL 489, IEC 60947-2, IEC 81346-2UL Listed, CE Marked
    		4434N1900000000
    600 750V DC
    600V AC
    600YV AC/347V AC    		50/6085,000 amp @ 240V AC
    35,000 amp @ 480V AC
    18,000 amp @ 600V AC
    50,000 amp @ 600V DC
    10,000 amp @ 750V DC    		3,000; 3,600; 4,200; 4,800; 5,400; 6,000——47/32"YesTab9.8"5.4"5.4"-10 to 155UL 489, IEC 60947-2, IEC 81346-2UL Listed, CE Marked
    		4434N2100000000
     
    Accessories for Circuit Breakers
    Shunt Trips
    Voltage,
    V AC
    Current @
    Voltage
    Freq., Hz
    Wire Connection
    Ht.
    Wd.
    Dp.
    Temp. Range,
    ° F
    Specs. Met
    Certification
    Each
    110 to 1277.4 amp @ 110V AC50/60Screw-Clamp Terminal2.56"0.85"1.23"-10 to 155UL 489, IEC 60947-2UL Listed
    		4434N220000000
    Circuit Breaker Auxiliary Contacts
    Image of Product. Front orientation. Circuit Breaker Auxiliary Contacts. High-Power Circuit Breakers.
    Auxiliary contacts send a signal to other equipment when the circuit trips. They can activate a warning light, initiate a shutdown, or start a backup power source. Multiple auxiliary contacts can be used within one circuit breaker and can be placed in any of the accessory slots.
    Voltage
    Current,
    amp
    Freq., Hz
    Switch
    Designation
    No. of Circuits
    Controlled
    Switch Starting
    Position
    Wire Connection
    Ht.
    Wd.
    Dp.
    Temp. Range,
    ° F
    Specs. Met
    Certification
    Each
    24V AC to 300V AC/24V DC to 250V DC650/60DPST
    		21 Off and 1 On
    		Screw-Clamp Terminal2.57"0.28"1.36"-10 to 155UL 489, IEC 60947-2UL Listed
    		4434N230000000
    Undervoltage Trips
    Voltage,
    V AC
    Current @ Voltage
    Freq., Hz
    Wire Connection
    Ht.
    Wd.
    Dp.
    Temp. Range,
    ° F
    Specs. Met
    Certification
    Each
    120 to 1270.01 amp @ 120V AC50/60Screw-Clamp Terminal2.56"1.01"1.13"-10 to 155UL 489, IEC 60947-2UL Listed
    		4434N240000000
    Circuit Breaker Handles
    Image of Product. Front orientation. Circuit Breaker Handles. High-Power Circuit Breakers.
    Install handles on the front cover of an electrical cabinet to turn these breakers on, off, or reset them without having to open the cabinet. Yet, these handles won’t prevent you from opening the electrical cabinet normally. You can also lock the handles in the on or off position with a padlock (not included) to prevent unauthorized changes to the circuit breaker.
    For Circuit Breaker Current, amp
    Ht.
    Wd.
    Projection
    Mounting Fasteners
    Included
    For Max. Padlock
    Shackle Dia.
    Padlock
    Included
    Temp. Range,
    ° F
    Enclosure Rating
    Specs. Met
    Each
    30, 60, 100, 1252.95"2.95"2.16"Yes3/8"No-10 to 155IP65, NEMA 4X, NEMA 12
    		IEC 60947-24434N250000000
    150, 200, 225, 2502.95"2.95"2.16"Yes3/8"No-10 to 155IP65, NEMA 4X, NEMA 12
    		IEC 60947-24434N26000000
    400, 6002.95"2.95"2.16"Yes3/8"No-10 to 155IP65, NEMA 4X, NEMA 12
    		IEC 60947-24434N27000000

    Cutler-Hammer Load-Center Circuit Breakers

    Image of Product. Front orientation. Circuit Breakers. Cutler-Hammer Load-Center Circuit Breakers, 1 Pole—Toggle-Switch Style.
    Image of Product. Front orientation. Circuit Breakers. Cutler-Hammer Load-Center Circuit Breakers, 2 Poles—Toggle-Switch Style.

    1

    Pole—Toggle-Switch

    Style

    2

    Poles—Toggle-Switch

    Style

    Install these circuit breakers into Cutler-Hammer CH series breaker boxes. Because these circuit breakers are thermal-magnetic, they trip two different ways. They either trip when heat is generated slowly by consistent low-level overload current or quickly when the magnetic coil senses a high-current short circuit.
    UL 489—They meet UL 489 requirements for branch circuit protection and are certified as current limiting, so they protect equipment by minimizing passing current during a short circuit.
    Breakthrough Current @ Voltage—Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit.
    Current,
    A
    Voltage, V AC
    Freq.,
    Hz
    Breakthrough Current @ Voltage
    Mounting
    Location
    Wire Connection
    Wd.
    Specs.
    Met
    Each
    1 Pole—Toggle-Switch Style
     
    Thermal/Magnetic
    15120
    240    		6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxScrew-Clamp Terminal3/4"UL 4895259T71000000
    20120
    240    		6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxScrew-Clamp Terminal3/4"UL 4895259T7200000
    30120
    240    		6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxScrew-Clamp Terminal3/4"UL 4895259T7300000
     
    2 Poles—Toggle-Switch Style
     
    Thermal/Magnetic
    15120
    240    		6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxScrew-Clamp Terminal1 1/2"UL 4895259T8100000
    20120
    240    		6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxScrew-Clamp Terminal1 1/2"UL 4895259T8200000
    30120
    240    		6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxScrew-Clamp Terminal1 1/2"UL 4895259T8300000
    40120
    240    		6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxScrew-Clamp Terminal1 1/2"UL 4895259T8400000
    50 120
    240    		6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxScrew-Clamp Terminal1 1/2"UL 4895259T8500000
    60120
    240    		6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxScrew-Clamp Terminal1 1/2"UL 4895259T8600000
    70120
    240    		6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxScrew-Clamp Terminal1 1/2"UL 4895259T900000
     

    Space-Saving Panel-Mount Branch Circuit Breakers

    Image of Product. Front orientation. Circuit Breakers. Space-Saving Panel-Mount Branch Circuit Breakers.
    Small enough to fit in tight spaces, these circuit breakers mount through panels. They are thermal, so they use the heat generated in overcurrent situations to trip the breaker.
    UL 489—These circuit breakers are UL 489-rated for branch circuit protection.
    Breakthrough Current @ Voltage—Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit.
    Screw On
    Current,
    A
    Voltage,
    V AC
    Freq., Hz
    Breakthrough Current
    @ Voltage
    For Panel
    Cutout Dia.
    Dp. Behind
    Panel
    Mounting
    Location
    Mounting Fasteners
    Included
    Wire Connection
    Quick-Disconnect
    Tab Wd.
    Temp. Range,
    ° F
    Specs.
    Met
    Certification
    Each
    1 Pole—Push-Button Style
     
    Thermal
    1512050/605,000 amp @ 120V AC0.38"1.43"PanelYesQuick-Disconnect Terminal0.25"35 to 140UL 489UL Listed, CSA Certified
    		3851K11000000
    2012050/605,000 amp @ 120V AC0.38"1.43"PanelYesQuick-Disconnect Terminal0.25"35 to 140UL 489UL Listed, CSA Certified
    		3851K1200000
     
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