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    36 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, 2 Poles. Front orientation. Circuit Breakers. Square D Load-Center Circuit Breakers, QO Series, 2 Poles—Toggle Switch.

    QO Series,

    2 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
    2 Poles—Toggle Switch
    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
    		6782K216000000
     
    QOB Series
    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,

    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
    3 Poles—Toggle Switch
    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
    		6782K3130000000
     
    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, 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

    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
    50 120
    240    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxSnap On1"UL 489UL Listed
    		69225K101000000
     
    2 Poles—Toggle Switch
    50 120
    240    		50/6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxSnap On2"UL 489UL Listed
    		69225K10200000
     

    DIN-Rail Mount Equipment Circuit Breakers

    Image of ProductInUse. Front orientation. Circuit Breakers. DIN-Rail Mount Equipment Circuit Breakers.
    Image of Product. Auxiliary Contact. Front orientation. Circuit Breakers. DIN-Rail Mount Equipment Circuit Breakers.
    Image of Product. Distribution Bar. Front orientation. Circuit Breakers. DIN-Rail Mount Equipment Circuit Breakers.
    Image of Product. Distribution Bar Terminal Cover. Front orientation. Circuit Breakers. DIN-Rail Mount Equipment Circuit Breakers.

    Auxiliary

    Contact

    Distribution Bar

    Distribution Bar

    Terminal Cover

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

    Distribution

    Bar End Cover

    Shunt

    Trip

    Extension

    Terminal

    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. Cut them to the number of terminals that you need.
    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.
    Also known as supplemental protectors, these circuit breakers mount directly to DIN rail downstream from a branch circuit breaker to protect a single piece of equipment. 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 bar end covers seal the live ends of distribution bars to prevent injury and damage.
    C Trip
    Image of Product. Front orientation. Circuit Breakers. DIN-Rail Mount Equipment Circuit Breakers, 1 Pole—Toggle-Switch Style.
    Image of Product. Front orientation. Circuit Breakers. DIN-Rail Mount Equipment Circuit Breakers, 2 Poles—Toggle-Switch Style.
    Image of Product. Front orientation. Circuit Breakers. DIN-Rail Mount Equipment Circuit Breakers, 3 Poles—Toggle-Switch Style.

    1

    Pole—Toggle-Switch

    Style

    2

    Poles—Toggle-Switch

    Style

    3

    Poles—Toggle-Switch

    Style

    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 1077—They are rated UL 1077 for protection against overloads and short circuits.
    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
     
    Thermal/Magnetic
    50 48V DC
    277V AC    		50/605,000 amp @ 277V AC
    5,000 amp @ 48V DC    		35DIN RailScrew-Clamp Terminal3.15"0.7"2.36"-40 to 165UL 1077, IEC 60947-2UL Listed, CSA Certified, CE Marked
    		7026K632000000
     
    2 Poles—Toggle-Switch Style
     
    Thermal/Magnetic
    50 96V DC
    277V AC
    480YV AC/277V AC    		50/605,000 amp @ 277V AC
    5,000 amp @ 480V AC
    5,000 amp @ 96V DC    		35DIN RailScrew-Clamp Terminal3.15"1.4"2.36"-40 to 165UL 1077, IEC 60947-2UL Listed, CSA Certified, CE Marked
    		7026K641000000
     
    3 Poles—Toggle-Switch Style
     
    Thermal/Magnetic
    50 277V AC
    480YV AC/277V AC    		50/605,000 amp @ 277V AC
    5,000 amp @ 480V AC    		35DIN RailScrew-Clamp Terminal3.15"2.09"2.36"-40 to 165UL 1077, IEC 60947-2UL Listed, CSA Certified, CE Marked
    		7026K87000000
     
    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
    230650/60DPST
    		21 Off and 1 On
    		35Screw-Clamp Terminal3.15"0.35"2.36"-40 to 165UL 1077, IEC 60947-2UL Listed, CSA Certified, CE Marked
    		7026K686000000
    Distribution Bars
    Terminal
    For No.
    of Poles
    No. of
    Terminals
    Voltage
    Current,
    amp
    Ctr.-to-Ctr.
    Wd.
    Ht.
    Wd.
    Dp.
    Temp. Range,
    ° F
    Specs. Met
    Certification
    Each
    157277V AC
    480YV AC/277V AC    		800.7"0.22"0.59"39.72"0.59"25 to 212UL 1077, IEC 60947-2UL Listed, CE Marked
    		7026K671000000
    256277V AC
    480YV AC/277V AC    		800.7"0.24"1.46"39.02"0.87"25 to 212UL 1077, IEC 60947-2UL Listed, CE Marked
    		7026K672000000
    357277V AC
    480YV AC/277V AC    		800.7"0.24"1.46"39.72"0.87"25 to 212UL 1077, IEC 60947-2UL Listed, CE Marked
    		7026K673000000
    Extension Terminals
    For No.
    of Poles
    Voltage
    Current,
    amp
    Freq., Hz
    Wire Connection
    Ht.
    Wd.
    Dp.
    Temp. Range,
    ° F
    Specs. Met
    Certification
    Each
    1277V AC
    480YV AC/277V AC    		11550/60Screw-Clamp Terminal1.14"1.42"0.67"-40 to 165UL 1077, IEC 60947-2UL Listed, CSA Certified, CE Marked
    		7026K678000000
    2, 3277V AC
    480YV AC/277V AC    		450/60Screw-Clamp Terminal1.14"2.36"0.67"-40 to 165UL 1077, IEC 60947-2UL Listed, CSA Certified, CE Marked
    		7026K67700000
    Distribution Bar End Covers
    For No.
    of Poles
    Ht.
    Wd.
    Dp.
    Material
    Temp. Range,
    ° F
    Specs. Met
    Certification
    Pkg.
    Qty.
    Pkg.
    10.55"0.19"0.37"Plastic-40 to 165UL 1077, IEC 60947-2CSA Certified, CE Marked
    		107026K676000000
    2, 30.94"0.69"0.31"Plastic-40 to 165UL 1077, IEC 60947-2CSA Certified, CE Marked
    		107026K67500000
    Distribution Bar Terminal Covers
    For No. of
    Terminals
    Ht.
    Wd.
    Dp.
    Material
    Temp. Range,
    ° F
    Specs. Met
    Certification
    Each
    50.94"3.35"0.47"Plastic-40 to 165UL 1077, IEC 60947-2CSA Certified, CE Marked
    		7026K67400000
    D Trip
    Image of Product. Front orientation. Circuit Breakers. DIN-Rail Mount Equipment Circuit Breakers, 1 Pole—Toggle-Switch Style.
    Image of Product. Front orientation. Circuit Breakers. DIN-Rail Mount Equipment Circuit Breakers, 2 Poles—Toggle-Switch Style.
    Image of Product. Front orientation. Circuit Breakers. DIN-Rail Mount Equipment Circuit Breakers, 3 Poles—Toggle-Switch Style.

    1

    Pole—Toggle-Switch

    Style

    2

    Poles—Toggle-Switch

    Style

    3

    Poles—Toggle-Switch

    Style

    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 1077—They are rated UL 1077 for protection against overloads and short circuits.
    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
     
    Thermal/Magnetic
    50 48V DC
    277V AC    		50/605,000 amp @ 277V AC
    5,000 amp @ 48V DC    		35DIN RailScrew-Clamp Terminal3.15"0.7"2.36"-40 to 165UL 1077, IEC 60947-2UL Listed, CSA Certified, CE Marked
    		7026K655000000
     
    2 Poles—Toggle-Switch Style
     
    Thermal/Magnetic
    50 96V DC
    277V AC
    480YV AC/277V AC    		50/605,000 amp @ 277V AC
    5,000 amp @ 480V AC
    5,000 amp @ 96V DC    		35DIN RailScrew-Clamp Terminal3.15"1.4"2.36"-40 to 165UL 1077, IEC 60947-2UL Listed, CSA Certified, CE Marked
    		7026K662000000
     
    3 Poles—Toggle-Switch Style
     
    Thermal/Magnetic
    50 277V AC
    480YV AC/277V AC    		50/605,000 amp @ 277V AC
    5,000 amp @ 480V AC    		35DIN RailScrew-Clamp Terminal3.15"2.09"2.36"-40 to 165UL 1077, IEC 60947-2UL Listed, CSA Certified, CE Marked
    		7026K669000000
     
    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
    230650/60DPST
    		21 Off and 1 On
    		35Screw-Clamp Terminal3.15"0.35"2.36"-40 to 165UL 1077, IEC 60947-2UL Listed, CSA Certified, CE Marked
    		7026K686000000
    Distribution Bars
    Terminal
    For No.
    of Poles
    No. of
    Terminals
    Voltage
    Current,
    amp
    Ctr.-to-Ctr.
    Wd.
    Ht.
    Wd.
    Dp.
    Temp. Range,
    ° F
    Specs. Met
    Certification
    Each
    157277V AC
    480YV AC/277V AC    		800.7"0.22"0.59"39.72"0.59"25 to 212UL 1077, IEC 60947-2UL Listed, CE Marked
    		7026K671000000
    256277V AC
    480YV AC/277V AC    		800.7"0.24"1.46"39.02"0.87"25 to 212UL 1077, IEC 60947-2UL Listed, CE Marked
    		7026K672000000
    357277V AC
    480YV AC/277V AC    		800.7"0.24"1.46"39.72"0.87"25 to 212UL 1077, IEC 60947-2UL Listed, CE Marked
    		7026K673000000
    Extension Terminals
    For No.
    of Poles
    Voltage
    Current,
    amp
    Freq., Hz
    Wire Connection
    Ht.
    Wd.
    Dp.
    Temp. Range,
    ° F
    Specs. Met
    Certification
    Each
    1277V AC
    480YV AC/277V AC    		11550/60Screw-Clamp Terminal1.14"1.42"0.67"-40 to 165UL 1077, IEC 60947-2UL Listed, CSA Certified, CE Marked
    		7026K678000000
    2, 3277V AC
    480YV AC/277V AC    		450/60Screw-Clamp Terminal1.14"2.36"0.67"-40 to 165UL 1077, IEC 60947-2UL Listed, CSA Certified, CE Marked
    		7026K67700000
    Distribution Bar End Covers
    For No.
    of Poles
    Ht.
    Wd.
    Dp.
    Material
    Temp. Range,
    ° F
    Specs. Met
    Certification
    Pkg.
    Qty.
    Pkg.
    10.55"0.19"0.37"Plastic-40 to 165UL 1077, IEC 60947-2CSA Certified, CE Marked
    		107026K676000000
    2, 30.94"0.69"0.31"Plastic-40 to 165UL 1077, IEC 60947-2CSA Certified, CE Marked
    		107026K67500000
    Distribution Bar Terminal Covers
    For No. of
    Terminals
    Ht.
    Wd.
    Dp.
    Material
    Temp. Range,
    ° F
    Specs. Met
    Certification
    Each
    50.94"3.35"0.47"Plastic-40 to 165UL 1077, IEC 60947-2CSA Certified, CE Marked
    		7026K67400000

    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.
    C 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

    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
    Current,
    A
    Each
    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
    		50 5789T204000000
     
    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
    		50 5789T20600000
     
    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
    		50 5789T208000000
     
    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, 2 Poles—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
    2 Poles—Toggle-Switch Style
     
    Thermal/Magnetic
    50 120
    240    		6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxScrew-Clamp Terminal2"UL 4895259T55000000
     

    Cutler-Hammer Load-Center Circuit Breakers

    Image of Product. Front orientation. Circuit Breakers. Cutler-Hammer Load-Center Circuit Breakers, 2 Poles—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
    2 Poles—Toggle-Switch Style
     
    Thermal/Magnetic
    50 120
    240    		6010,000 amp @ 120V AC
    10,000 amp @ 240V AC    		Breaker BoxScrew-Clamp Terminal1 1/2"UL 4895259T85000000
     

    Harsh-Environment Circuit Breakers

    Image of Product. Front orientation. Circuit Breakers. Harsh-Environment Circuit Breakers, 1 Pole—Push-Pull-Button Style.
    Image of Product. Front orientation. Circuit Breakers. Harsh-Environment Circuit Breakers, 1 Pole—Lever Style.
    Image of Product. Front orientation. Circuit Breakers. Harsh-Environment Circuit Breakers, 1 Pole—Push-Button Style.

    1

    Pole—Push-Pull-Button

    Style

    1

    Pole—Lever

    Style

    1

    Pole—Push-Button

    Style

    Built to resist vibration and corrosion in harsh environments, these circuit breakers protect against overload and short circuits in low-voltage automotive and other electronic applications. All are thermal, so they use the heat generated in overcurrent situations to trip the breaker.
    Lever Manual Reset and Push-Pull Button Manual Reset—Push-pull button and lever style breakers can be used as an on/off switch.
    UL 1077—Place UL 1077-rated breakers downstream from a branch circuit breaker to protect a single piece of equipment. They are also known as supplemental protectors.
    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,
    V DC
    Breakthrough Current
    @ Voltage
    For Panel
    Cutout Dia.
    Dp. Behind
    Panel
    Mounting
    Location
    No.
    of
    Dia.
    Mounting Fasteners
    Included
    Wire
    Connection
    Ht.
    Wd.
    Dp.
    Temp. Range,
    ° F
    Specs.
    Met
    Certification
    Each
    1 Pole—Push-Pull-Button Style
     
    Thermal
    50 286,000 amp @ 28V DC0.49"2.48"Panel——YesScrew Terminal———-65 to 165UL 1077UL Recognized Component
    		6608T15000000
     
    1 Pole—Lever Style
     
    Thermal
    50 481,500 amp @ 48V DC———30.19"NoScrew Terminal3.44"2.32"1.72"-40 to 185—CE Marked
    		4514K22400000
     
    1 Pole—Push-Button Style
     
    Thermal
    50 481,500 amp @ 48V DC———20.25"NoScrew Terminal2.89"1.9"1.44"-40 to 185—CE Marked
    		4514K13300000
     

    High-Temperature Panel-Mount Circuit Breakers

    Image of Product. Front orientation. Circuit Breakers. High-Temperature Panel-Mount Circuit Breakers , 1 Pole—Toggle-Switch Style.

    1

    Pole—Toggle-Switch

    Style

    Unlike breakers that trip thermally, these breakers have a hydraulic-magnetic trip mechanism, so they aren’t affected by changes in temperature. Instead, these circuit breakers trip when they hydraulically sense consistent low-level overload current, or they trip quickly when the magnetic coil senses a high-current short circuit. Use the threaded holes on the face to install them through panels, enclosure covers, or walls to keep them close to the equipment they protect.
    Breakthrough Current @ Voltage—Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit.
    For Panel
    Cutout
    Mounting
    Holes
    Current,
    A
    Voltage
    Freq., Hz
    Breakthrough Current @ Voltage
    Temp. Range,
    ° F
    Ht.
    Wd.
    Dp. Behind
    Panel
    No.
    of
    Thread
    Size
    Mounting Fasteners
    Included
    Wire
    Connection
    Ht.
    Wd.
    Each
    1 Pole—Toggle-Switch Style
    50 80V DC
    250V AC    		50/601,500 amp @ 250V AC
    5,000 amp @ 80V DC    		-40 to 1851.45"0.76"2.573"26-32
    		NoScrew Terminal2.5"0.75"72015K35000000
     
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