Panel-Mount Equipment Circuit Breakers
Mount these breakers, also known as supplemental protectors, through panels downstream from a branch circuit breaker to protect a single piece of equipment. They are rated UL1077 for protection against overloads and short circuits. These breakers can also be used as on/off switches. 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 technical drawings and 3-D models, click on a part number.
For Panel Cutout | Mounting Holes | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Current, A | Voltage | Frequency, Hz | Breakthrough Current | Ht. | Wd. | Dp. Behind Panel | No. of | Dia. | Mounting Fasteners Included | Quick-Disconnect Tab Wd. | Temp. Range, °F | Specifications Met | Each | |
1 Pole | ||||||||||||||
| 5 | 240V AC/60V DC | 50/60 | 1,000 A @ 240 V AC 1,000 A @ 60 V DC | 1.98" | 0.99" | 1.96" | 2 | 0.15" | No | 0.25" | 15° to 130° | UL 1077, UL Recognized Component, CSA Certified | 0000000 | 000000 |
| 10 | 240V AC/60V DC | 50/60 | 1,000 A @ 240 V AC 1,000 A @ 60 V DC | 1.98" | 0.99" | 1.96" | 2 | 0.15" | No | 0.25" | 15° to 130° | UL 1077, UL Recognized Component, CSA Certified | 0000000 | 00000 |
| 15 | 240V AC/60V DC | 50/60 | 1,000 A @ 240 V AC 1,000 A @ 60 V DC | 1.98" | 0.99" | 1.96" | 2 | 0.15" | No | 0.25" | 15° to 130° | UL 1077, UL Recognized Component, CSA Certified | 0000000 | 00000 |
| 20 | 240V AC/60V DC | 50/60 | 1,000 A @ 240 V AC 1,000 A @ 60 V DC | 1.98" | 0.99" | 1.96" | 2 | 0.15" | No | 0.25" | 15° to 130° | UL 1077, UL Recognized Component, CSA Certified | 0000000 | 00000 |
2 Pole | ||||||||||||||
| 5 | 240V AC/60V DC | 50/60 | 1,000 A @ 240 V AC 1,000 A @ 60 V DC | 1.98" | 0.99" | 1.96" | 2 | 0.15" | No | 0.25" | 15° to 130° | UL 1077, UL Recognized Component, CSA Certified | 0000000 | 00000 |
| 10 | 240V AC/60V DC | 50/60 | 1,000 A @ 240 V AC 1,000 A @ 60 V DC | 1.98" | 0.99" | 1.96" | 2 | 0.15" | No | 0.25" | 15° to 130° | UL 1077, UL Recognized Component, CSA Certified | 0000000 | 00000 |
| 15 | 240V AC/60V DC | 50/60 | 1,000 A @ 240 V AC 1,000 A @ 60 V DC | 1.98" | 0.99" | 1.96" | 2 | 0.15" | No | 0.25" | 15° to 130° | UL 1077, UL Recognized Component, CSA Certified | 0000000 | 00000 |
| 20 | 240V AC/60V DC | 50/60 | 1,000 A @ 240 V AC 1,000 A @ 60 V DC | 1.98" | 0.99" | 1.96" | 2 | 0.15" | No | 0.25" | 15° to 130° | UL 1077, UL Recognized Component, CSA Certified | 0000000 | 00000 |
For Panel Cutout | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Current, A | Voltage | Frequency, Hz | Breakthrough Current | Ht. | Wd. | Dp. Behind Panel | Quick-Disconnect Tab Wd. | Temp. Range, °F | Specifications Met | Each | |
1 Pole | |||||||||||
| 5 | 240V AC/60V DC | 50/60 | 1,000 A @ 240 V AC 1,000 A @ 60 V DC | 1.77" | 0.85" | 1.75" | 0.25" | 15° to 130° | UL 1077, UL Recognized Component, CSA Certified | 0000000 | 000000 |
| 10 | 240V AC/60V DC | 50/60 | 1,000 A @ 240 V AC 1,000 A @ 60 V DC | 1.77" | 0.85" | 1.75" | 0.25" | 15° to 130° | UL 1077, UL Recognized Component, CSA Certified | 0000000 | 00000 |
| 15 | 240V AC/60V DC | 50/60 | 1,000 A @ 240 V AC 1,000 A @ 60 V DC | 1.77" | 0.85" | 1.75" | 0.25" | 15° to 130° | UL 1077, UL Recognized Component, CSA Certified | 0000000 | 00000 |
| 20 | 240V AC/60V DC | 50/60 | 1,000 A @ 240 V AC 1,000 A @ 60 V DC | 1.77" | 0.85" | 1.75" | 0.25" | 15° to 130° | UL 1077, UL Recognized Component, CSA Certified | 0000000 | 00000 |
2 Pole | |||||||||||
| 5 | 240V AC/60V DC | 50/60 | 1,000 A @ 240 V AC 1,000 A @ 60 V DC | 1.77" | 0.85" | 1.75" | 0.25" | 15° to 130° | UL 1077, UL Recognized Component, CSA Certified | 0000000 | 00000 |
| 10 | 240V AC/60V DC | 50/60 | 1,000 A @ 240 V AC 1,000 A @ 60 V DC | 1.77" | 0.85" | 1.75" | 0.25" | 15° to 130° | UL 1077, UL Recognized Component, CSA Certified | 0000000 | 00000 |
| 15 | 240V AC/60V DC | 50/60 | 1,000 A @ 240 V AC 1,000 A @ 60 V DC | 1.77" | 0.85" | 1.75" | 0.25" | 15° to 130° | UL 1077, UL Recognized Component, CSA Certified | 0000000 | 00000 |
| 20 | 240V AC/60V DC | 50/60 | 1,000 A @ 240 V AC 1,000 A @ 60 V DC | 1.77" | 0.85" | 1.75" | 0.25" | 15° to 130° | UL 1077, UL Recognized Component, CSA Certified | 0000000 | 00000 |
| Current, A | Voltage | Frequency, Hz | Breakthrough Current | For Panel Cutout Dia. | Dp. Behind Panel | Mounting Fasteners Included | Quick-Disconnect Tab Wd. | Temp. Range, °F | Specifications Met | Each | |
1 Pole | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/20 | 250V AC/75V DC | 50/60 | 200 A @ 250 V AC 800 A @ 75 V DC | 1/4" | 2.42" | Yes | 0.25" | -20° to 140° | UL 1077, UL Recognized Component | 0000000 | 000000 |
| 2/10 | 250V AC/75V DC | 50/60 | 1,000 A @ 250 V AC 800 A @ 75 V DC | 1/4" | 2.42" | Yes | 0.25" | -20° to 140° | UL 1077, UL Recognized Component | 0000000 | 00000 |
| 4/10 | 250V AC/75V DC | 50/60 | 1,000 A @ 250 V AC 800 A @ 75 V DC | 1/4" | 2.42" | Yes | 0.25" | -20° to 140° | UL 1077, UL Recognized Component | 0000000 | 00000 |
| 1/2 | 250V AC/75V DC | 50/60 | 1,000 A @ 250 V AC 800 A @ 75 V DC | 1/4" | 2.42" | Yes | 0.25" | -20° to 140° | UL 1077, UL Recognized Component | 0000000 | 00000 |
| 6/10 | 250V AC/75V DC | 50/60 | 1,000 A @ 250 V AC 800 A @ 75 V DC | 1/4" | 2.42" | Yes | 0.25" | -20° to 140° | UL 1077, UL Recognized Component | 0000000 | 00000 |
| 8/10 | 250V AC/75V DC | 50/60 | 1,000 A @ 250 V AC 800 A @ 75 V DC | 1/4" | 2.42" | Yes | 0.25" | -20° to 140° | UL 1077, UL Recognized Component | 0000000 | 00000 |
| 1 | 250V AC/75V DC | 50/60 | 1,000 A @ 250 V AC 800 A @ 75 V DC | 1/4" | 2.42" | Yes | 0.25" | -20° to 140° | UL 1077, UL Recognized Component | 0000000 | 00000 |
| 1 1/2 | 250V AC/75V DC | 50/60 | 1,000 A @ 250 V AC 800 A @ 75 V DC | 1/4" | 2.42" | Yes | 0.25" | -20° to 140° | UL 1077, UL Recognized Component | 0000000 | 00000 |
| 2 | 250V AC/75V DC | 50/60 | 1,000 A @ 250 V AC 800 A @ 75 V DC | 1/4" | 2.42" | Yes | 0.25" | -20° to 140° | UL 1077, UL Recognized Component | 0000000 | 00000 |
| 2 1/2 | 250V AC/75V DC | 50/60 | 1,000 A @ 250 V AC 800 A @ 75 V DC | 1/4" | 2.42" | Yes | 0.25" | -20° to 140° | UL 1077, UL Recognized Component | 0000000 | 00000 |
| 3 | 250V AC/75V DC | 50/60 | 1,000 A @ 250 V AC 800 A @ 75 V DC | 1/4" | 2.42" | Yes | 0.25" | -20° to 140° | UL 1077, UL Recognized Component | 0000000 | 00000 |
| 4 | 250V AC/75V DC | 50/60 | 1,000 A @ 250 V AC 800 A @ 75 V DC | 1/4" | 2.42" | Yes | 0.25" | -20° to 140° | UL 1077, UL Recognized Component | 0000000 | 00000 |
| 5 | 250V AC/75V DC | 50/60 | 1,000 A @ 250 V AC 800 A @ 75 V DC | 1/4" | 2.42" | Yes | 0.25" | -20° to 140° | UL 1077, UL Recognized Component | 0000000 | 00000 |
| 6 | 250V AC/75V DC | 50/60 | 1,000 A @ 250 V AC 800 A @ 75 V DC | 1/4" | 2.42" | Yes | 0.25" | -20° to 140° | UL 1077, UL Recognized Component | 0000000 | 00000 |
| 8 | 250V AC/75V DC | 50/60 | 2,000 A @ 250 V AC 800 A @ 75 V DC | 1/4" | 2.42" | Yes | 0.25" | -20° to 140° | UL 1077, UL Recognized Component | 0000000 | 00000 |
| 10 | 250V AC/75V DC | 50/60 | 2,000 A @ 250 V AC 800 A @ 75 V DC | 1/4" | 2.42" | Yes | 0.25" | -20° to 140° | UL 1077, UL Recognized Component | 0000000 | 00000 |
High-Temperature Panel-Mount Circuit Breakers
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 is the maximum current that the circuit breaker can safely stop in the event of a short circuit.
For technical drawings and 3-D models, click on a part number.
For Panel Cutout | Mounting Holes | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Current, A | Voltage | Frequency, Hz | Breakthrough Current | Temp. Range, °F | Ht. | Wd. | Dia. | Dp. Behind Panel | No. of | Thread Size | Mounting Fasteners Included | Wire Connection Type | Ht. | Wd. | Each | |
1 Pole—Toggle Style | ||||||||||||||||
| 5 | 277V AC/80V DC | 50/60 | 5,000 A @ 277 V AC 7,500 A @ 80 V DC | -40° to 185° | __ | __ | 0.63" | 2" | 2 | 6-32 | No | Quick-Disconnect Terminals | 2" | 0.75" | 000000000 | 000000 |
| 10 | 277V AC/80V DC | 50/60 | 5,000 A @ 277 V AC 7,500 A @ 80 V DC | -40° to 185° | __ | __ | 0.63" | 2" | 2 | 6-32 | No | Quick-Disconnect Terminals | 2" | 0.75" | 000000000 | 00000 |
| 15 | 277V AC/80V DC | 50/60 | 5,000 A @ 277 V AC 7,500 A @ 80 V DC | -40° to 185° | __ | __ | 0.63" | 2" | 2 | 6-32 | No | Quick-Disconnect Terminals | 2" | 0.75" | 000000000 | 00000 |
| 20 | 277V AC/80V DC | 50/60 | 5,000 A @ 277 V AC 7,500 A @ 80 V DC | -40° to 185° | __ | __ | 0.63" | 2" | 2 | 6-32 | No | Quick-Disconnect Terminals | 2" | 0.75" | 000000000 | 00000 |
| 30 | 277V AC/80V DC | 50/60 | 5,000 A @ 277 V AC 7,500 A @ 80 V DC | -40° to 185° | __ | __ | 0.63" | 2" | 2 | 6-32 | No | Quick-Disconnect Terminals | 2" | 0.75" | 000000000 | 00000 |
| 40 | 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" | __ | 2.573" | 2 | 6-32 | No | Screw Terminals | 2.5" | 0.75" | 00000000 | 00000 |
| 50 | 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" | __ | 2.573" | 2 | 6-32 | No | Screw Terminals | 2.5" | 0.75" | 00000000 | 00000 |
2 Pole—Toggle Style | ||||||||||||||||
| 5 | 277V AC/80V DC | 50/60 | 5,000 A @ 277 V AC 7,500 A @ 80 V DC | -40° to 185° | __ | __ | 0.63" | 2" | 4 | 6-32 | No | Quick-Disconnect Terminals | 2" | 1.5" | 00000000 | 00000 |
| 10 | 277V AC/80V DC | 50/60 | 5,000 A @ 277 V AC 7,500 A @ 80 V DC | -40° to 185° | __ | __ | 0.63" | 2" | 4 | 6-32 | No | Quick-Disconnect Terminals | 2" | 1.5" | 00000000 | 00000 |
| 15 | 250V AC | 50/60 | 1,500 A @ 250 V AC | -40° to 185° | 1.45" | 1.52" | __ | 2.573" | 4 | 6-32 | No | Screw Terminals | 2.5" | 1.5" | 00000000 | 000000 |
| 20 | 250V AC | 50/60 | 1,500 A @ 250 V AC | -40° to 185° | 1.45" | 1.52" | __ | 2.573" | 4 | 6-32 | No | Screw Terminals | 2.5" | 1.5" | 00000000 | 000000 |
Space-Saver Panel-Mount Branch Circuit Breakers
Small enough to fit in tight spaces, these circuit breakers mount through panels and are UL 489-rated for 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.
For technical drawings and 3-D models, click on a part number.
| Current, A | Voltage | Frequency, Hz | Breakthrough Current | For Panel Cutout Dia. | Dp. Behind Panel | Mount Type | Mounting Fasteners Included | 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 | Yes | 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 | Yes | 0.25" | 35° to 140° | UL 489, UL Listed, CSA Certified | 0000000 | 00000 |
Harsh-Environment 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.
Place UL1077 rated breakers downstream from a branch circuit breaker to protect a single piece of equipment. They are also known as supplemental protectors.
For technical drawings and 3-D models, click on a part number.
| Current, A | Voltage | Breakthrough Current | For Panel Cutout Dia. | Dp. Behind Panel | Mount Type | Mounting Fasteners Included | Wire Connection Type | Temp. Range, °F | Specifications Met | Each | |
1 Pole | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 30 | 28V DC | 6,000 A @ 28 V DC | 0.49" | 2.48" | Screw On | Yes | Screw Terminals | -65° to 165° | UL 1077, UL Recognized Component | 0000000 | 000000 |
| 35 | 28V DC | 6,000 A @ 28 V DC | 0.49" | 2.48" | Screw On | Yes | Screw Terminals | -65° to 165° | UL 1077, UL Recognized Component | 0000000 | 00000 |
| 40 | 28V DC | 6,000 A @ 28 V DC | 0.49" | 2.48" | Screw On | Yes | Screw Terminals | -65° to 165° | UL 1077, UL Recognized Component | 0000000 | 00000 |
| 45 | 28V DC | 6,000 A @ 28 V DC | 0.49" | 2.48" | Screw On | Yes | Screw Terminals | -65° to 165° | UL 1077, UL Recognized Component | 0000000 | 00000 |
| 50 | 28V DC | 6,000 A @ 28 V DC | 0.49" | 2.48" | Screw On | Yes | Screw Terminals | -65° to 165° | UL 1077, UL Recognized Component | 0000000 | 00000 |
| 55 | 28V DC | 6,000 A @ 28 V DC | 0.49" | 2.48" | Screw On | Yes | Screw Terminals | -65° to 165° | UL 1077, UL Recognized Component | 0000000 | 00000 |
| 60 | 28V DC | 6,000 A @ 28 V DC | 0.49" | 2.48" | Screw On | Yes | Screw Terminals | -65° to 165° | UL 1077, UL Recognized Component | 0000000 | 00000 |
| 70 | 28V DC | 6,000 A @ 28 V DC | 0.49" | 2.48" | Screw On | Yes | Screw Terminals | -65° to 165° | UL 1077, UL Recognized Component | 0000000 | 00000 |
| 80 | 28V DC | 6,000 A @ 28 V DC | 0.49" | 2.48" | Screw On | Yes | Screw Terminals | -65° to 165° | UL 1077, UL Recognized Component | 0000000 | 00000 |
| 90 | 28V DC | 6,000 A @ 28 V DC | 0.49" | 2.48" | Screw On | Yes | Screw Terminals | -65° to 165° | UL 1077, UL Recognized Component | 0000000 | 00000 |