... Specification 1)passed ISO9001 and CE 2)Over current/voltage , phase sequence protection 3)Stable quality, complete protect ... voltages on requestRegulation accuracy±1%(Fluctuations in the input voltage range allows)Reaction timeTs less than 100msOverload capacity150% ... 0°C~45°C; Humidity:0~95%ProtectionOverload, over / under voltage, phase, short circuit, maintenance bypass, delay output protection. ...