... time0ms(adopted static switch )protectioninputvoltage,frequency ultralimit,phase wrong,phase lost outputovercurrent, short circuit, power factor lowEconomic ... ,RS485. Dry contact interface,SNMP card(network remote control)size600*620*1250-600*720*1520weight200-1980kg ... Production Range: UPS, three phase (10kva~800kva), single phase(300va~20kva), three phase in and single phase out(6kva~80kva), online ...