What are these products used for?
residual current circuit breaker (RCCB) detects a dangerous leakage and disconnects the power; lightning, short-term network fluctuations, humidity or temporary device behavior may leave critical loads such as refrigerator, alarm, modem, server or pump without power even if the fault clears. Sigma SCRC03 and Gewiss GWD0976 ReStart Rd PRO are separate automatic reclosing accessories mounted next to a compatible residual current circuit breaker; they are not the residual current circuit breaker itself.
Sigma SCRC03 attempts to restore power three times with 10, 60, and 300 s delays, and locks if it encounters an issue without performing the fourth closure. Gewiss GWD0976 checks the insulation condition of the installation before closing, and if a leakage is detected, it monitors the circuit every two minutes and only restores power once safe conditions are met. This ensures energy continuity is protected in a controlled manner in homes, shops, offices, warehouses, and remote installations.
These accessories do not disable residual current protection; the cause of repeated tripping should be investigated, and the switch should be selected appropriately with mechanical and electrical connections checked against installation values, to be done by a qualified electrician.
