Production Introduction ZN12-12 Vacuum Circuit Breaker, this Indoor High-voltage Vacuum Circuit Breaker combines the advantages of domestic column-mounted circuit breakers.The company has absorbed the mature experience of Japan's Toshiba company's
1. Self-Test Function – GFCI conducts automatic self-test every 1-10 minutes to make sure it can respond to a ground fault2. End-of-Life Monitoring – RED lights turn on immediately if GFCI displays alarm during operation, reminding user the GFCI reaches e