Features 1、HIGH CONDUCTIVITY: Built in standby disconnect signal output port for easy external observation with signal indicator light, and silver alloy contacts for improved conductivity and lifespan. 2、SAFE MATERIAL: Automatic transfer switch is made of excellent flame retardant PP materials, possess good insulation, high temperature resistant, aging resistant, safe and reliable to use. 3、FAST SWITCHING: When the normal power supply is abnormal, the backup power supply works immediately, to ensure the continuity, reliability and safety of the power supply. 4、WIDE APPLICATION: Dual power toggle controller with excellent isolation, provide self investment and self compound, widely used in families, shopping malls, factories, laboratories, farms and other places. 5、DUAL OPERATION: Provides automatic and manual operation with millisecond level uninterrupted switching, with compact structure and reliable transmission, and wide application in various scenarios. Specification Item Type: Dual Power Automatic Transfer Switch Material: Flame Retardant PP, Silver Alloy Purpose: Transfer to backup power during power outage, switch to main power when power returns Operating Frequency: 50/60HZ Rated Current: 100A Insulation Voltage: AC690V Number of Poles: 2P Rated Voltage: AC220V Rated Impulse Withstand Voltage: 8kV Operation Mode: Automatic and Manual Transfer Time: <50ms Size: Approx. 109 x 69 x 97mm / 4.29 x 2.72 x 3.82in Package List 1 x Dual Power Automatic Transfer Switch