Feature:1. Dual Power Automatic Switching: This switch automatically switches to the backup power supply when power failure, and automatically switches to the main power supply when power supply is normal.2. Silver Contact: The automatic transfer switch uses silver contact, greatly improves conductivity and longevity.3. Flame Retardant Shell: The shell is made of premium flame retardant plastic, with good insulation, resistance to high temperature, anti aging, safe and reliable.4. Fast Switching: When the normal power supply is abnormal, the switch switches to the standby power supply in milliseconds, ensuring the continuity, reliability and safety of the power supply.5. Widely Used: This dual power switch is specially designed for rail installation, widely used in various places where power failure is not allowed, such as factories, shopping malls, nurseries, etc.Specification:Item Type: Dual Power Automatic Transfer SwitchMaterial: PC, SilverInsulation Voltage: AC690VRated Voltage: AC400VCoil Voltage: 220VACLevel: PC levelSpecifications: 2PLife: Electrical: 2000 timesMechanical: 5000 timesRated Short Circuit Current: 50kAFuse: RT16-00 63ARated Impulse Withstand Voltage: 8kVControl Circuit: Rated control voltage Us: AC220V 85% Us-110% UsAuxiliary Circuit: Two relays, each relay has two sets of contacts Capacity: AC220V50HZ le=5yTouch Time: <50msOperation Transition Time: <50msReturn Time: <50msOff Time: <50ms.Package List:1 xDual Power Automatic Transfer Switch1 x ManualNote:1. The maximum ambient temperature should not exceed 40C, the minimum should not be lower than ‑5C, and the average temperature within 24 hours should not be higher than 35C.2. The altitude of the installation site should not be higher than 2000m.3. When the maximum temperature is 40C, the relative humidity of the installation site should not exceed 50%, when the temperature is the lowest temperature of ‑5C, the relative humidity is higher, for example, if the temperature is 25C, the relative humidity is 90%. Special measures should be taken to deal with occasional condensation on product surfaces due to temperature changes.