ICHYTI 2P 16A 63A 30mA 6KA RCCB RCD 230V Electromechanic Residual Current Circuit Breaker Differential Breaker Safety Switch Question: What's the differences betweenElectromechanictype andElectronictype? Answer: All the RCCB like DZ30LE, DPNL, TPNL, DZ47LE series are belongs toelectronic type, the residual current will change if you use it below 220V single phase. Especially can't be used for 110/120Vac system. Theelectromechanic can be used at any voltageand the residual current won't change. Which means it can be used for 230V, 120V, 48V or other voltage. Residual Current Circuit Breaker is applicable to electric circuits with rated voltage 230/400V AC, frequency 50/60Hz and rated current up to 63Amp. The RCCB provides indirect protection to the operators body under such condition that the exposed live parts should be connected to a proper earthing pole.The RCCB also provides protection against the fire danger caused by earth fault current due to function failure of over-current protection device. Special tips: 1. RCCB with rated sensitivity up to 30mA could be used as supplementary protecting device in case other protecting device fails its protection against electric shock. 2. RCCB designed for household installation and other similar application, is for non-profeional operation, and no maintenance is required. 3. RCCB provides on protection against electric shock resulted from direct contacts of both protected lines,or leakage current between these two lines. 4. Particular devices such as surge protective devices,surge arrester etc are recommended to install at upstream line to RCCB as precaution against potential surge voltage and current occurring at its power input side. 5. Satisfying conditions and applications as mentioned above,RCCB with ON-OFF indicating device is considered suitable for isolation function.