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Number of Poles Number of Poles | Show |
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Mounting Location Mounting Location |
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Specifications Met Specifications Met |
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Manual Reset Style Manual Reset Style |
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| Lever | Rocker |
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Manufacturer Manufacturer |
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Wire Connection Type Wire Connection Type |
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 | Screw-Clamp Terminals |
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Breakthrough Current Breakthrough Current |
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System of Measurement System of Measurement |
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Reset Type Reset Type |
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Minimum Temperature Minimum Temperature |
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Environment Environment |
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DIN-Rail Mount AC Branch Circuit Breakers
Use these circuit breakers upstream from small transformers, lighting, and control circuits. They meet UL 489 requirements for branch circuit protection. All are thermal/magnetic—breakers trip when heat is generated by sustained, low-level overload current, but will trip quickly when the magnetic field in the coil senses a high-current short circuit. Mount directly to DIN rail.
Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit.
Alarm (sold separately) sends an audible signal when the breaker is tripped.
| Voltage | Frequency, Hz | Breakthrough Current | For DIN Rail Size, mm | Wire Connection Type | Ht. | Wd. | Dp. | Temp. Range, °F | Features | Specifications Met | Choose a Current, A | Each | |
1 Pole—Toggle Style | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 277V AC | 50/60 | 10,000 A @ 277 V AC | 35 | Screw-Clamp Terminals | 4.13" | 0.7" | 2.36" | -4° to 140° | Time Delay Trip | UL 489, CSA Certified | 000000 | 000000 | |
| Current | Includes | Each | |
| 0.5 A @ 110 V DC, 2 A @ 250 V AC | Two Sets of Auxillary Contacts | 0000000 | 000000 |
High-Inrush DIN-Rail Mount AC Branch Circuit Breakers
Able to handle high inrush current caused by equipment startup, use these circuit breakers upstream from motors and larger transformer applications. They meet UL 489 requirements for branch circuit protection. All are thermal/magnetic—breakers trip when heat is generated by sustained, low-level overload current, but will trip quickly when the magnetic field in the coil senses a high-current short circuit. Mount directly to DIN rail.
Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit.
Alarm (sold separately) sends an audible signal when the breaker is tripped.
| Voltage | Frequency, Hz | Breakthrough Current | For DIN Rail Size, mm | Wire Connection Type | Ht. | Wd. | Dp. | Temp. Range, °F | Features | Specifications Met | Choose a Current, A | Each | |
1 Pole—Toggle Style | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 277V AC | 50/60 | 10,000 A @ 277 V AC | 35 | Screw-Clamp Terminals | 4.13" | 0.7" | 2.36" | 25° to 100° | Time Delay Trip | UL 489, CSA Certified, IEC European Standards | 000000 | 000000 | |
| Current | Includes | Each | |
| 0.5 A @ 110 V DC, 2 A @ 250 V AC | Two Sets of Auxillary Contacts | 0000000 | 000000 |
DIN-Rail Mount AC Equipment Circuit Breakers
These circuit breakers meet UL 1077 requirements for supplemental circuit protection and are designed for use downstream of a branch circuit breaker. Use them with small transformers, lighting, and control circuits. All are thermal/magnetic—breakers trip when heat is generated by sustained, low-level overload current, but will trip quickly when the magnetic field in the coil senses a high-current short circuit. Mount directly to DIN rail.
Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit.
Alarm (sold separately) sends an audible signal when the breaker is tripped.
| Voltage | Frequency, Hz | Breakthrough Current | For DIN Rail Size, mm | Wire Connection Type | Ht. | Wd. | Dp. | Temp. Range, °F | Features | Specifications Met | Choose a Current, A | Each | |
1 Pole—Toggle Style | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 277V AC | 50/60 | 5,000 A @ 277 V AC | 35 | Screw-Clamp Terminals | 3.15" | 0.7" | 2.36" | -40° to 165° | Time Delay Trip | UL 1077, CSA Certified, CE Marked | 000000 | 000000 | |
| Current | Includes | Each | |
| 0.5 A @ 110 V DC, 2 A @ 250 V AC | Two Sets of Auxillary Contacts | 0000000 | 000000 |
High-Inrush DIN-Rail Mount AC
Equipment Circuit Breakers
Able to handle high inrush currents caused by equipment startup, these circuit breakers are suitable for motor and larger transformer applications. They meet UL 1077 requirements for supplemental circuit protection and are designed for use downstream of a branch circuit breaker. All are thermal/magnetic—breakers trip when heat is generated by sustained, low-level overload current, but will trip quickly when the magnetic field in the coil senses a high-current short circuit. Mount directly to DIN rail.
Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit.
Alarm (sold separately) sends an audible signal when the breaker is tripped.
| Voltage | Frequency, Hz | Breakthrough Current | For DIN Rail Size, mm | Wire Connection Type | Ht. | Wd. | Dp. | Temp. Range, °F | Features | Specifications Met | Choose a Current, A | Each | |
1 Pole—Toggle Style | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 277V AC | 50/60 | 5,000 A @ 277 V AC | 35 | Screw-Clamp Terminals | 3.15" | 0.7" | 2.36" | 25° to 100° | Time Delay Trip | UL 1077, CSA Certified, CE Marked, IEC European Standards | 000000 | 000000 | |
| Current | Includes | Each | |
| 0.5 A @ 110 V DC, 2 A @ 250 V AC | Two Sets of Auxillary Contacts | 0000000 | 000000 |
Square D Load-Center Circuit Breakers
Series, 1
Tandem Pole
Match these circuit breakers to Square D breaker boxes or panel boards of the same manufacturer series. They meet UL 489 requirements for branch circuit protection. All are thermal/magnetic—breakers trip when heat is generated by sustained, low-level overload current, but will trip quickly when the magnetic field in the coil senses a high-current short circuit.
Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit.
| Voltage | Frequency, Hz | Breakthrough Current | Mounting Location | Wire Connection Type | Wd. | Features | Specifications Met | Choose a Current, A | Each | |
QOB Series | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
1 Pole—Toggle Style | ||||||||||
| 120V AC/240V AC | 60 | 10,000 A @ 120 V AC 10,000 A @ 240 V AC | Panel Board | Screw-Clamp Terminals | 3/4" | Time Delay Trip | UL 489 | 000000 | 000000 | |
Homeline Series | ||||||||||
1 Pole—Toggle Style | ||||||||||
| 120V AC/240V AC | 60 | 10,000 A @ 120 V AC 10,000 A @ 240 V AC | Breaker Box | Screw-Clamp Terminals | 1" | Tandem Circuit, Time Delay Trip | UL 489, UL Listed as SWD | 20 | 00000000 | 00000 |
| 120V AC/240V AC | 60 | 10,000 A @ 120 V AC 10,000 A @ 240 V AC | Breaker Box | Screw-Clamp Terminals | 1" | Time Delay Trip | __ | 0000000 | 0000 | |
Siemens Load-Center Circuit Breakers
Use with Siemens EQ series breaker boxes. These circuit breakers meet UL 489 requirements for branch circuit protection. All are thermal/magnetic—breakers trip when heat is generated by sustained, low-level overload current, but will trip quickly when the magnetic field in the coil senses a high-current short circuit.
Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit.
Cutler-Hammer Load-Center Circuit Breakers
Install these circuit breakers into Cutler-Hammer CH series breaker boxes. They meet UL 489 requirements for branch circuit protection. All are thermal/magnetic—breakers trip when heat is generated by sustained, low-level overload current, but will trip quickly when the magnetic field in the coil senses a high-current short circuit.
Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit.
High-Temperature Panel-Mount AC Circuit Breakers
These magnetic circuit breakers are unaffected by temperature changes and trip when the magnetic field in the coil increases from current overload, so they are suitable for high-temperature environments.
Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit.
For Panel Cutout | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Voltage | Frequency, Hz | Breakthrough Current | Temp. Range, °F | Ht. | Wd. | Dp. Behind Panel | Mount Type | Mounting Fasteners Included | Wire Connection Type | Ht. | Wd. | Choose a Current, A | Each | |
1 Pole—Lever Style | ||||||||||||||
| 250V AC | 50/60 | 1,500 A @ 250 V AC | -40° to 185° | 1.45" | 0.76" | 2.48" | Screw On | No | Screw Terminals | 2.5" | 0.75" | 0000000 | 000000 | |
Space-Saver Panel-Mount AC Branch Circuit Breakers
Small enough to fit in tight spaces, these UL 489-rated circuit breakers provide branch circuit protection. They are thermal, so they use the heat generated in overcurrent situations to trip the breaker.
Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit.
| Current, A | Voltage | Frequency, Hz | Breakthrough Current | For Panel Cutout Dia. | Dp. Behind Panel | Mount Type | Quick-Disconnect Tab Wd. | Temp. Range, °F | Specifications Met | Each | |
1 Pole—Push Button Style | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 15 | 120V AC | 50/60 | 5,000 A @ 120 V AC | 0.38" | 1.43" | Screw On | 0.25" | 35° to 140° | UL 489, UL Listed, CSA Certified | 0000000 | 000000 |
| 20 | 120V AC | 50/60 | 5,000 A @ 120 V AC | 0.38" | 1.43" | Screw On | 0.25" | 35° to 140° | UL 489, UL Listed, CSA Certified | 0000000 | 00000 |
Harsh-Environment DC Circuit Breakers
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.
Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit.
Push-pull button and lever style breakers can be used as an on/off switch.
IP66 rated circuit breakers protect against power jets of water.
IP67 rated circuit breakers protect against water submersion, corrosion, and power jets of water.
| Number of Poles | Voltage | Breakthrough Current | For Panel Cutout Dia. | Dp. Behind Panel | Mount Type | Mounting Fasteners Included | Wire Connection Type | Temp. Range, °F | Specifications Met | Choose a Current, A | Each | |
| 1 | 28V DC | 6,000 A @ 28 V DC | 0.49" | 2.48" | Screw On | Yes | Screw Terminals | -65° to 165° | UL Recognized | 000000 | 000000 |
Mounting Holes | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Number of Poles | Voltage | Breakthrough Current | Ht. | Wd. | Dp. | Mount Type | No. of | Dia. | Mounting Fasteners Included | Wire Connection Type | Temp. Range, °F | Specifications Met | Choose a Current, A | Each | |
| 1 | 48V DC | 5,000 A @ 48 V DC | 3.44" | 2.32" | 1.72" | Screw On | 3 | 0.19" | No | Screw Terminals | -40° to 185° | CE Marked | 000000 | 000000 | |
Mounting Holes | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Number of Poles | Voltage | Breakthrough Current | Ht. | Wd. | Dp. | Mount Type | No. of | Dia. | Mounting Fasteners Included | Wire Connection Type | Temp. Range, °F | Specifications Met | Choose a Current, A | Each | |
| 1 | 42V DC | 3,000 A @ 42 V DC | 2.89" | 1.9" | 1.44" | Screw On | 2 | 0.25" | No | Screw Terminals | -25° to 180° | CE Marked | 000000 | 000000 | |
Panel-Mount AC/DC Circuit Breakers
In addition to protecting equipment, these circuit breakers can be used as on/off switches. Able to handle high inrush current found in motor start-ups. They meet UL 1077 requirements for supplemental circuit protection and are designed for use downstream of a branch circuit breaker. All are thermal, so they use the heat generated in overcurrent situations to trip the breaker.
Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit.
Covers for rocker style breakers (sold separately) provide IP54 protection against limited dust and splashed water.
Covers for push-button style breakers (sold separately) provide IP65 protection against water projected from a nozzle.
For Panel Cutout | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No. of Poles | Voltage | Frequency, Hz | Breakthrough Current | Ht. | Wd. | Dp. Behind Panel | Mounting Fasteners Included | Quick-Disconnect Tab Wd. | Temp. Range, °F | Specifications Met | Choose a Current, A | Each | |
| 1 | 240V AC/60V DC | 50/60 | 1,000 A @ 60 V DC 1,000 A @ 240 V AC | 1.98" | 0.99" | 1.96" | No | 0.25" | 15° to 130° | UL Recognized, UL 1077, CSA Certified | 000000 | 000000 | |
For Panel Cutout | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No. of Poles | Voltage | Frequency, Hz | Breakthrough Current | Ht. | Wd. | Dp. Behind Panel | Quick-Disconnect Tab Wd. | Temp. Range, °F | Specifications Met | Choose a Current, A | Each | |
| 1 | 240V AC/60V DC | 50/60 | 1,000 A @ 60 V DC 1,000 A @ 240 V AC | 1.77" | 0.85" | 1.75" | 0.25" | 15° to 130° | UL Recognized, UL 1077, CSA Certified | 000000 | 000000 | |
High-Temperature Panel-Mount AC/DC Circuit Breakers
These magnetic circuit breakers are unaffected by temperature changes so they are suitable for high-temperature environments. They trip when the magnetic field in the coil increases from current overload.
Breakthrough current is the maximum current that the circuit breaker can safely stop in the event of a short circuit.
For Panel Cutout | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Voltage | Frequency, Hz | Breakthrough Current | Temp. Range, °F | Ht. | Wd. | Dia. | Dp. Behind Panel | Wire Connection Type | Quick-Disconnect Tab Wd. | Ht. | Wd. | Choose a Current, A | Each | |
1 Pole—Lever Style | ||||||||||||||
| 250V AC/80V DC | 50/60 | 1,500 A @ 250 V AC 5,000 A @ 80 V DC | -40° to 185° | 1.45" | 0.76" | __ | 2.48" | Screw Terminals | __ | 2.5" | 0.75" | 0000000 | 000000 | |
1 Pole—Toggle Style | ||||||||||||||
| 277V AC/80V DC | 50/60 | 5,000 A @ 277 V AC 7,500 A @ 80 V DC | -40° to 185° | __ | __ | 0.63" | 1.64" | Quick-Disconnect Terminals | 0.25" | 2" | 0.75" | 00000000 | 00000 | |