... ,16,20,25,32A 4. SAA certificate Single Pole Circuit Breaker RCBO 4.5kA:Scope of application SDRNL-32 earth ... , They have the electric leakage (electric shock), overload, short circuit and so on protection functions. The over voltage protection function ... mainly used to protect the building illumination and power distribution system. Product has passed CB, SAA certificate. Main Technical Parameters ...