... ,16,20,25,32A 4. SAA certificate Single Pole Circuit Breaker RCBO 4.5kA:Scope of application SDRNL-32 earth leakage ... , They have the electric leakage (electric shock), overload, short circuit and so on protection functions. The over voltage protection function ... : Installation pollution grade is grade II.6. Installation Conditions: Magnetic field outside the installation place can not exceed 5times of ...