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 SwitchMaterial: PC, SilverModel: GFQ3 100 4PRated Current le: 100AInsulation Voltage Ui: AC690VRated Voltage Ue: AC400VFrequency: 50 60HZRated Control Voltage US: 220VAC 85% Us to 110% UsLevel: PC levelSpecification: 4PService Life: Electrical: 2000 times, Mechanical: 5000 timesRated Short Circuit Current: 50kAFuse: RT16 00 63ARated Impulse Withstand Voltage: 8kVAuxiliary Circuit: Two relays, each relay has two sets of contact capacity: AC220V 50HZ le=5yTouch Time: <50msOperation Switching Time: <50msReturn Time: <50msClosing Time: <50ms.Package List:1 x Dual Power Automatic Transfer Switch1 x User ManualNote:1. The maximum ambient temperature shall not exceed 40, the minimum temperature shall not be lower than 5, and the average temperature within 24 hours shall not be higher than 35.2. The altitude of the installation site should not be higher than 2000m.3. When the maximum temperature reaches 40, the relative humidity of the installation site should not exceed 50%. When the temperature is the lowest temperature 5, the relative humidity is higher, for example, when the temperature is 25, the relative humidity is 90%. Due to temperature changes, special measures should be taken to deal with occasional condensation on the surface of the product.