Feature 1 Orbital Installation: The dual power automatic switch is a miniature power switch. The switch is mainly used to test whether the main power supply or backup power supply is normal. This product is specially designed for rail installation and dedicated to PZ30 power distribution box. 2 Easy Maintenance: This double power automatic switch has firm structure, easy installation and maintenance, and long life. It can be operated manually. 3 PC and Silver Material: This switch uses silver contacts to improve the conductivity and service life of the product, and uses flame retardant PC material for great insulation, high temperature resistance and anti aging. 4 Instantaneous Switching: When there is an abnormality in the normal power supply, the backup power supply works immediately, switching to the backup power supply in case of power failure and to the main power supply in case of an incoming call, with millisecond level switching without power supply, ensuring the continuity, reliability and security of power supply. 5 Wide Application: This automatic transfer switch is widely applied in various places where continuous power failure is not allowed, such as factories, supermarket, nurseries, etc.Item Type: Double Power Automatic Transfer SwitchModel: CHLT 125 3PMaterial: PC, silverInsulation Voltage: AC690VRated Voltage: AC400VCoil Voltage: AC230VGrade: PC gradeSpecification: 3PElectrical Life: 2000 timesMechanical Life: 5000 timesRated Short Circuit Current: 50kAFuse: RT16-00-63ARated Impulse Withstand Voltage: 8kVControl Circuit: Rated control voltage Us, AC220V 85% Us-110% UsAuxiliary Circuit: 2 relays, each relay has two sets of contact capacity, AC220V50HZ le=5yTouch Time: <50msOperation Conversion Time: <50msReturn Time: <50msClosing Time: <50ms Package List1 x Dual Power Automatic Transfer Switch1 x User ManualNote1. The maximum surrounding temperature should not exceed 40, the minimum should not be lower than 5, and the average temperature in 24 hours should not be higher than 35.2. The altitude of the installation site should not be higher than 2000m .3. When the maximum temperature reaches 40, the relative humidity of the installation site should not exceed 50%; when the temperature is the minimum temperature 5, the relative humidity is higher, for example, the temperature is 25, and the relative humidity is 90%. Due to temperature changes, special measures should be taken to deal with the occasional condensation on the exterior of the product.