| Customization: | Available |
|---|---|
| Protection: | Durable, Explosion-Proof, Waterproof, Dust-Proof, Insulation |
| Feature: | Flat |
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| Without power supply, under-voltage release can't close. It is classified into instantaneous and time-delay type. After closing the circuit breaker, under-voltage release can break the circuit breaker when the voltage drops to (70%~35%) Us. The circuit breaker can be closed again when power voltage recovers and exceeds 85%Us. rated control power voltage Us(V) AC220V/230V,AC380V/400V action voltage (0.35~0.7)Us reliable making voltage (0.85~1.1)Us reliable non-making voltage ≤0.35Us delay time: 0.5s,1s,1.5s,3s (YCW3-1600 , non-adjustable); 0.5s, 1s, 3s, 5s(YCW3-2000A, 3200A, 4000A, 6300A, adjustable). Make sure there is power supply on the under-voltage release, before making the circuit breaker. The OFF push-button of the breaker can be locked in the position of depress, and at this time, the breaker can not be closed for operation; when the user selects the option, the factory provides locks and keys; One breaker is provided with one lock and one key for the lock; two breakers are provided with two locks and one key for the locks; three breakers are provided with three same locks and two same keys for the locks. Note: the air circuit breaker with key lock, when the key has to be pulled out, it is necessary to first press the OFF key, turn the key anticlockwise, and then pull out the key. |
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