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 SwitchModel: ZGQ5-100/4PMaterial: PlasticFunction: Switch to standby power supply in case of power failure, and switch to main power supply in case of power failure. Operating Frequency: 50-60HZRated Current le A: 100AInsulation Voltage Ui: AC690VRated Voltage Ue: AC400VRated Impulse Withstand Voltage: 8kVRated Control Circuit Voltage Us: AC220V, 85% Us-110% Us. Usage Category: AC-31BOperation Mode: Automatic and manual. Auxiliary Circuit: Two relays, each with two groups of contact capacity, used for contact converter: AC220V50HZ le=Sy. Conversion Time: <50msPoles: 4P.Package List:1 xDual Power Automatic Transfer Switch1 x User ManualNote: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.