The main function of AL-X1 alarm auxiliary contact is assembled with the circuit breaker to realize the signal indication and alarm of remote circuit breaker. The main receiving function of AL-X3 alarm auxiliary contact is assembled with the circuit breaker to realize the signal indication far away from the circuit breaker. The main function of the OUVT-X1 overvoltage and undervoltage release is assembled with the circuit breaker to realize the signal indication and alarm of the remote circuit breaker. The main function of 0UWT-X3 overvoltage and undervoltage release is assembled with the circuit breaker to realize overvoltage and undervoltage protection.
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