Residual Current Circuit Breaker (RCCB) is applicable to electric circuits with rated voltage 230/400V AC, frequency 50/60Hz and rated current up to 125Amp. Residual Current Circuit Breaker (RCCB) provides indirect protection to the operator°Øs body under such condition that the exposed live parts should be connected to a proper earthing pole.Residual Current Circuit Breaker (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. TONGOU 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. TONGOU RCCB designed for household installation and other similar application, is for non-professional operation, and no maintenance is required.

3. TONGOU RCCB provides no 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,TONGOU RCCB with °∞ON-OFF°±  indicating device is considered suitable for isolation function.