TNR-B30 series surge protector device is applicable to A.C50-60HZ,380V and below TT,TN etc. power supply system, widely applicable to kinds of power supply second class(B class)over voltage protection, Generally installed in low voltage main distribution box or low voltage general switch of building.
NPE technical data:
Continuous voltage Uc (V): 250
DC breakdown voltage (100V/S) (V) 500
Impulse breakdown voltage (1KV/μs) (V)<=1100
Max impulse withstand current (8/20μs)(KA) 80