The residual current circuit breaker (RCCB) is an important safety measure for the protection of electrical circuits. It is a current-sensing device that automatically measures and breaks the circuit whenever a fault occurs in the connected circuit or when the current exceeds the rated sensitivity.
This series of circuit breakers are three phases, if any one phase is missing, the circuit breaker leakage protection mode can still work normally; rated residual action current and maximum disconnection time are adjustable according to the actual situation on site; when the phase voltage is reduced to 550V, the leakage protection module can still work normally.
Relay is an electrical control device. When the change of input quantity (such as voltage, current, temperature, etc.) reaches the specified requirements, it can mak...
A relay controls the operation of large currents through small currents, and plays the role of automatic adjustment, safety protection, and circuit conversion.
