Timer switch connection wiring. In this circuit, we use 3 DP MCBs ( Double Pole Minature Circuit Breakers ), an RCCB ( Residual Current Circuit Breaker ), an 8-pin timer relay, a magnetic contactor, and four CFL Lights. First, we need to connect the DP MCB with a power source, then connect the RCCB and other DP MCBs with the power source, then connect the timer and contactor, then connect the lights with the contactor.
