1、EASY OPERATION: Dual power transfer switch, supporting automatic and manual operation, fast switching without power failure, ensuring stable and reliable transmission. 2、WORKING PRINCIPLE: When the normal power supply is abnormal, the standby power supply will work immediately, ensuring the continuity, reliability and safety of power supply. 3、GOOD PERFORMANCE: The transfer switch has the characteristics of good isolation, less interference, self switching and self resetting, stable performance, etc., safe and practical. 4、APPLICABLE SCENES: Specially designed for household rail installation, used for PZ30 distribution box, suitable for families, shopping malls, factories, laboratories, etc. 5、PLASTIC HOUSING: The switch shell is made of PC material, with good insulation, high temperature and aging resistance, and the silver contact can improve the conductivity. 1 x Transfer Switch1 x User Manual Item Type: Transfer SwitchModel: NLQ4-125 2PMaterial: PC, SilverInsulation Voltage: AC690V.50HZRated Voltage: AC400V.50HZRated Working Voltage: AC230VGrade: PCSpecification: 2PService Life: Electrical: 2000 Times, Mechanical: 5000 TimesRated Short Circuit Current: 50kAFuse: RT16-00-63ARated Impulse Withstand Voltage: 8kVControl Circuit: Rated control VoltageUs: AC220V 85% Us-110% UsAuxiliary Circuit: 2 relays, each relay has 2 groups of contact capacity: AC220V50HZ le=5yTouch Time: <50msOperation Switching Time: <50msReturn Time: <50msClosing Time: <50ms