Item Type: Automatic Transfer Switch Material: ABS/copper Purpose: Switch to the backup power supply when the power fails, and switch to the main power supply when the power comes in Rated Working Current: 100A Rated Working Voltage: 400V AC Insulation Voltage: 690V AC Impact Resistance Voltage: 8KV Control Voltage: AC230V Working Frequency: 50-60HZ Operation Mode: Automatic and manual ATS: CB level Conversion Time: 0.05 (S) Number of Poles: 4P1Adopt good?quality materials, greatly improving the conductivity and service life of the product 2Built?in regular standby opening signal output port, can be connected with signal indicator light, which is convenient for observation outside the cabinet 3Adopt flame?retardant plastic material, possess good insulation, high temperature resistance, anti?aging, safe and reliable 4The backup power supply will work immediately when the normal power supply is abnormal, to ensure the continuity, reliability and safety 5The operation mode supports 2 types of automatic and manual, flexible and convenient, and very practical 1 x Automatic Transfer Switch 1 x User Manual