Residual Current Circuit Breaker
1.Leakagge protection function of RCCB is tested and adjusted by the manufacturer, users can not open the product at random during usage.
2.After using RCCB for a certain time(normally oned month), test button should be pressed once in a state of making the circuit to check whether the function of RCCB is normal and reliable(pressess test button once, the RCCB can cut off at once).
3.RCCB must not be wetted or soaked by rain,snow ar water during the course of transportation, storation and usage.
4.RCCB can not protect short circuit in application.