Features： 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. Specification： Item Type: Transfer Switch Model: NLQ4-125 2P Material: PC, Silver Insulation Voltage: AC690V.50HZ Rated Voltage: AC400V.50HZ Rated Working Voltage: AC230V Grade: PC Specification: 2P Service Life: Electrical: 2000 Times, Mechanical: 5000 Times Rated Short Circuit Current: 50kA Fuse: RT16-00-63A Rated Impulse Withstand Voltage: 8kV Control Circuit: Rated control VoltageUs: AC220V 85% Us-110% Us Auxiliary Circuit: 2 relays, each relay has 2 groups of contact capacity: AC220V50HZ le=5y Touch Time: <50ms Operation Switching Time: <50ms Return Time: <50ms Closing Time: <50ms Package List： 1 x Transfer Switch 1 x User Manual