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.