Feature: 1. MAIN FUNCTION: This transfer switch switches to standby power supply during power failure, and is ideal for various places where power failure is not allowed. 2. MILLISECOND RESPONSE: When main power supply is abnormal, the standby power supply will work immediately. This switch can ensure the continuity, reliability and safety of the power supply. 3. AUTO MANUAL MODES: The power transfer switch can be switched automatically or manually, easy to operate. 4. RELIABLE MATERIAL: PC flame retardant shell has good insulation, high temperature resistance, aging resistance, safe and reliable. Silver contact can greatly improve the conductivity and service life. 5. DIN RAIL MOUNTING: This dual power automatic switch is designed for installation with 35mm standard guide rail, and is dedicated for PZ30 distribution box. Specification: Item Type: Dual Power Automatic Transfer Switch Material: PC, Silver Model: GFQ3 100 4P Rated Current le: 100A Insulation Voltage Ui: AC690V Rated Voltage Ue: AC400V Frequency: 50 60HZ Rated Control Voltage US: 220VAC 85% Us to 110% Us Level: PC level Specification: 4P Service Life: Electrical: 2000 times, Mechanical: 5000 times Rated Short Circuit Current: 50kA Fuse: RT16 00 63A Rated Impulse Withstand Voltage: 8kV Auxiliary Circuit: Two relays, each relay has two sets of contact capacity: AC220V 50HZ le=5y Touch Time: