1、Industrial Silver Contact: The dual power automatic transfer switch has industrial silver contact, which has better conductivity and is made of PP flame retardant material, which is very practical. 2、Two Modes: Our double power automatic transfer switch has both manual mode and automatic mode, you can consider using it according to your actual situation. 3、Exquisite Craftsmanship: The dual power automatic transfer switch is exquisite in craftsmanship, with internal knitting thread, neat wiring, sturdy and durable. 4、Safe and Reliable: When the normal power is abnormal, the backup power will work immediately, thus ensuring the continuity of power with reliability and security. 5、Widely Applied: Our double power automatic transfer switch is suitable for home, garage, office and so on, which is very widely applied. 1 x Dual Power Automatic Transfer Switch4 x Wiring Terminal1 x Instruction Manual Item Type: Dual Power Automatic Transfer Switch Material: PP, silverModel: W2R 100Rated Current: 63AInsulation Voltage: AC690V,50HzRated Voltage: AC400V,50HzGrade: PC grade, can be connected and withstand, not open short circuit currentUse Category: AC 33iBPole: 4PElectrical Life: 2000 timesMechanical Life: 5000 timesRated Condition Short Circuit Current: 50kASCPD(Fuse): RT16 00 63ARated Impulse Withstand Voltage: 8kVControl Circuit: Rated Control Voltage Us:AC220 V, 50HzCorrect Operating Conditions: 85%Us to 110%UsAuxiliary Circuit: 2 independent relays, each relay includes 2 sets of transformer contactsContact Capacity: AC220V 50HZ or 60HZTouch Time: <50msOperation Transition Time: <50msReturn Time: <50msOff Time: <50ms