GYL9 Type B Residual Current Circuit Breaker (RCCB)(without overcurrent protection), suitable for rated voltage 230V at two poles, 400V at four poles, rated current n line 63A, when the person gets electric shock or the grid leakage current exceeds the specified value, the residual current action circuit breaker can quickly cut off the fault power supply for protecting the safety of human body and electrical equipment can also be used for infrequent switching of circuits and infrequent starting of motors.
The product is not only suitable for sinusoidal ac residual current, pulsed DC residual current, but also for residual current devices that can ensure trip at the following currents:
— Sinusoidal AC residual current AC of 1000Hz or less;
— Alternating residual current superposition smoothing DC residual current;
— Pulsating DC residual current superposition smoothing DC residual current;
— Pulsating DC residual current generated by a two-phase or multiphase rectifier circuit;
— Smoothing residual DC current