F82 - F83 - F82E - F83E Undervoltage Releases Accessory Installation Video
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- เผยแพร่เมื่อ 15 ก.ย. 2024
- Undervoltage Releases: Used for tripping the circuit breaker when the energy is cut off or voltage goes below 70% the operating voltage. When no energy is supplied to the undervoltage coil, the circuit breaker cannot get back to open position.