Number of Poles Number of Poles | Show |
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Mounting Location Mounting Location |
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Manufacturer Manufacturer |
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Specifications Met Specifications Met |
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Breakthrough Current Breakthrough Current |
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Wire Connection Type Wire Connection Type |
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 | Screw-Clamp Terminals |
 | Screw Terminals |
 | Quick- Disconnect Terminals |
Manual Reset Style Manual Reset Style |
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| Toggle | Push Button |
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| Lever | Rocker |
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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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 | |
2 Pole—Toggle Style | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 277V AC/480YV AC | 50/60 | 10,000 A @ 277 V AC 10,000 A @ 480 V AC | 35 | Screw-Clamp Terminals | 4.13" | 1.39" | 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 | |
2 Pole—Toggle Style | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 277V AC/480YV AC | 50/60 | 10,000 A @ 277 V AC 10,000 A @ 480 V AC | 35 | Screw-Clamp Terminals | 4.13" | 1.39" | 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 | |
2 Pole—Toggle Style | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 277V AC/480YV AC | 50/60 | 5,000 A @ 277 V AC 5,000 A @ 480 V AC | 35 | Screw-Clamp Terminals | 3.15" | 1.4" | 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 | |
2 Pole—Toggle Style | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 277V AC/480YV AC | 50/60 | 5,000 A @ 277 V AC 5,000 A @ 480 V AC | 35 | Screw-Clamp Terminals | 3.15" | 1.4" | 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
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 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
2 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 | 1 1/2" | Time Delay Trip | UL 489 | 000000 | 000000 | |
Homeline Series | ||||||||||
2 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 | 2" | Time Delay Trip | __ | 0000000 | 00000 | |
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.
| Voltage | Frequency, Hz | Breakthrough Current | Wire Connection Type | Wd. | Features | Choose a Current, A | Each | |
2 Pole—Toggle Style | ||||||||
|---|---|---|---|---|---|---|---|---|
| 120V AC/240V AC | 60 | 10,000 A @ 120 V AC 10,000 A @ 240 V AC | Screw-Clamp Terminals | 2" | Time Delay Trip | 000000 | 000000 | |
| 120V AC/240V AC | 60 | 10,000 A @ 120 V AC 10,000 A @ 240 V AC | Screw-Clamp Terminals | 2" | Time Delay Trip | 70 | 000000 | 00000 |
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.
| Voltage | Frequency, Hz | Breakthrough Current | Wire Connection Type | Wd. | Features | Choose a Current, A | Each | |
2 Pole—Toggle Style | ||||||||
|---|---|---|---|---|---|---|---|---|
| 120V AC/240V AC | 60 | 10,000 A @ 120 V AC 10,000 A @ 240 V AC | Screw-Clamp Terminals | 1 1/2" | Time Delay Trip | 000000 | 000000 | |
| 120V AC/240V AC | 60 | 10,000 A @ 120 V AC 10,000 A @ 240 V AC | Screw-Clamp Terminals | 1 1/2" | Time Delay Trip | 70 | 000000 | 00000 |
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 | |
2 Pole—Lever Style | ||||||||||||||
| 250V AC | 50/60 | 1,500 A @ 250 V AC | -40° to 185° | 1.45" | 1.52" | 2.48" | Screw On | No | Screw Terminals | 2.5" | 1.5" | 0000000 | 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 | |
| 2 | 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 | |
| 2 | 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.
2-pole circuit breakers require one panel cutout for each pole.
For Panel Cutout | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Voltage | Frequency, Hz | Breakthrough Current | Temp. Range, °F | Dia. | Dp. Behind Panel | Wire Connection Type | Quick-Disconnect Tab Wd. | Ht. | Wd. | Choose a Current, A | Each | |
2 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" | 1.5" | 0000000 | 000000 | |