BSM1 20-1 Series Supplementary Protector can be used in electric system which rated current from 3A to 50A, 50/60Hz, voltage AC 250V and DC65V to protect the overload and short of circuit. It is largely used in industrial automation equipment, telecommunication equipment, communication power , UPS and so on.
Ambient air temperature range is : 0℃~+40℃， and average temperature less than +35℃ in 24h
Altitude of location is below 2000m
Rated current: 2A-10A