Feature: 1. Transfer Switch: When the normal power supply is abnormal, the standby power supply will work immediately to ensure the continuity and safety. 2. Silver Contacts: Adopting silver contacts with better electrical conductivity, this dual power automatic transfer switch is very reliable. 3. Simple Operation: Built in regular standby opening signal output terminal, which can be connected with signal indicator light for easy viewing. 4. Plastic Material: The flame retardant plastic material has good insulation and high temperature resistance, very durable for long term using. 5. Easy to Install: Comes with a compact size and a light weight as well, the rail installation of the 400V power transfer switch is very easy. Specification: Item Type: Dual Power Automatic Transfer Switch Model: ZGQ5-100/4P Material: Plastic Function: Switch to standby power supply in case of power failure, and switch to main power supply in case of power failure. Operating Frequency: 50-60HZ Rated Current le A: 100A Insulation Voltage Ui: AC690V Rated Voltage Ue: AC400V Rated Impulse Withstand Voltage: 8kV Rated Control Circuit Voltage Us: AC220V, 85% Us-110% Us. Usage Category: AC-31B Operation Mode: Automatic and manual. Auxiliary Circuit: Two relays, each with two groups of contact capacity, used for contact converter: AC220V50HZ le=Sy. Conversion Time: <50ms Poles: 4P. Package List: 1 x Dual Power Automatic Transfer Switch1 x User Manual Note: 1. Under special circumstances, the common or standby power supply can be switched in manual mode. 2. It can be used for the phase AC220V power circuit. The dual power supplies can be mains generators, solar power generation, street lamps, and batteries. If it is DC or low voltage power, it needs to be connected to the dual power supply after the inverter reverses to AC 220V. 3. Switching rather than a standby power supply, that is, it cannot replace the battery. 4. Use guide rail for installation.