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This Altech Corporation 1C1UL is a single-pole miniature molded case circuit breaker from the UL Series. It operates as a thermal magnetic type with a lever actuator, suitable for DIN rail mounting.
The circuit breaker has a current rating of 1A and a voltage rating of 277V AC. It offers a short circuit interrupting capacity of 10 kA at 120V, 240V, and 277V AC. The device is calibrated at 40°C and operates within an ambient temperature range of -25°C to +55°C.
Key mechanical specifications include a terminal torque range of 2 to 2.5 N·m, an electrical life of 60,000 cycles, and a mechanical life of 100,000 cycles. It also meets vibration resistance standards of >15g and resistance to mechanical shocks of 25g @ 11ms.
Compliance includes CE, cULus, and UL489 approvals. RoHS, REACH, and MSL status are reported as compliant or unaffected, though with low confidence due to unverified data.
The voltage rating is 277V AC.
The ambient operating temperature range is -25°C to +55°C.
The short circuit interrupting capacity is 10kA at 120V, 240V, and 277V AC.
At 105% of rated current it must not trip within 1 hour, and at 135% it must trip within 1 hour.
At 5 times rated current it holds for at least 100ms, and at 10 times rated current it trips within 100ms.