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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 | 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 | 6 | 000000 | 000000 |
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 | 6 | 000000 | 00000 |
3 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" | 2.09" | 2.36" | -4° to 140° | Time Delay Trip | UL 489, CSA Certified | 6 | 000000 | 00000 |
4 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" | 2.79" | 2.36" | -4° to 140° | Time Delay Trip | UL 489, CSA Certified | 6 | 0000000 | 000000 |
| Current | Includes | Each | |
| 0.5 A @ 110 V DC, 2 A @ 250 V AC | Two Sets of Auxillary Contacts | 0000000 | 000000 |
Blade-Style High-Voltage DC Circuit Breakers
Rated to 72V DC, these can handle higher voltages than any other DC circuit breaker we offer. Use these circuit breakers in place of type ATC, AF, ATO, and 257 blade-style fuses to protect against overload and short circuits in low-voltage automotive and 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.
DIN-rail mount holder is required (sold separately) to mount circuit breakers to DIN-rail.
| Voltage | Breakthrough Current | Mounting Location | Ht. | Wd. | Blade Ht. | Temp. Range, °F | Specifications Met | Current, A | Each | |
| 72V DC | 2,000 A @ 72 V DC | Fuse Block | 2.06" | 0.96" | 0.25" | 0° to 140° | UL Recognized, UL 1077, CSA Certified | 6 | 000000 | 000000 |
| For DIN Rail Size, mm | Wire Connection Type | Each | |
| 35 | Screw-Clamp Terminals | 000000 | 000000 |
Blade-Style DC Circuit Breakers
Protect against overload and short circuits in low-voltage automotive and other electronic applications. These circuit breakers can replace type ATC, AF, ATO, and 257 blade-style fuses. 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.
| Voltage | Breakthrough Current | Mounting Location | Ht. | Wd. | Blade Ht. | Temp. Range, °F | Specifications Met | Current, A | Each | |
| 12V DC | 2,000 A @ 12 V DC | Fuse Block | 0.95" | 0.79" | 0.25" | -40° to 185° | SAE Standards | 6 | 000000 | 00000 |
| Voltage | Breakthrough Current | Mounting Location | Ht. | Wd. | Blade Ht. | Temp. Range, °F | Specifications Met | Current, A | Each | |
| 24V DC | 2,000 A @ 24 V DC | Fuse Block | 1.16" | 0.79" | 0.25" | -40° to 185° | SAE Standards | 6 | 000000 | 000000 |
Vibration-Resistant Blade-Style DC Circuit Breakers
These circuit breakers resist vibration better than standard low-voltage DC circuit breakers. They protect against overload and short circuits in low-voltage automotive and other electronic applications. Use them to replace type ATC, AT, ATO, and 257 blade-style fuses. 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.
| Voltage | Breakthrough Current | Mounting Location | Ht. | Wd. | Blade Ht. | Temp. Range, °F | Specifications Met | Current, A | Each | |
Push Button Style | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 48V DC | 2,000 A @ 48 V DC | Fuse Block | 1.5" | 0.87" | 0.25" | -40° to 185° | SAE Standards | 6 | 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.
| No. of Poles | Voltage | Frequency, Hz | For Panel Cutout Dia. | Dp. Behind Panel | Quick-Disconnect Tab Wd. | Temp. Range, °F | Specifications Met | Current, A | Each | |
| 1 | 250V AC/75V DC | 50/60 | 1/4" | 2.42" | 0.25" | -20° to 140° | UL Recognized | 6 | 000000 | 000000 |