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This Altech Corporation 1BU20M is a single-pole, thermal magnetic circuit breaker. It is designed for DIN rail mounting and features a lever actuator. The breaker has a current rating of 20A and a voltage rating of 277V AC.
Key specifications include an interrupting capacity of 10kA, a calibration temperature of 40°C, and an operating ambient temperature range of -25°C to 60°C. The terminal size is compatible with 14-3 AWG wire, with a recommended torque of 17.7 lb-in for smaller gauges and 25 lb-in for larger gauges. The breaker has an electrical life of 6,000 switching cycles and a mechanical life of 10,000 switching cycles. It offers IP20 protection at the front and can be mounted in any orientation.
Compliance includes UL508 recognition. RoHS, REACH, and MSL statuses are listed as compliant, unaffected, and Level 1 respectively, though these are currently unverified.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The current rating is 20A.
The voltage rating is 277V.
It has 1 pole.
It is a thermal magnetic breaker.
It is designed for DIN rail mounting.
The operating ambient temperature range is -25°C to 60°C.