Description Function: 1. SILVER CONTACTS IMPROVE CONDUCTIVITY: The use of silver contacts in this product can greatly improve the conductivity and service life of the product 2. CONVENIENT OBSERVATION: Built-in open signal output port in standby mode do timing, which can be connected do signal indicator light, convenient do observation outside the cabinet, rail type installation design 3. FIREPROOF MATERIALS: Made of good quality fireproof plastics, have good insulation, are resistant to high temperatures, resistant to aging, safe and reliable 4. MILLISECOND SWITCHING WITHOUT INTERRUPTION: When normal power supply is abnormal, backup power supply works immediately, and power supply is switched in milliseconds without interruption, which ensures continuity, reliability and safety of power supply 5. IN DIFFERENT PLACES: Switch to backup power in case of power failure and switch to main power when power is restored. Widely used in various places where continuous power failure is not allowed, such as factories, centra, nurseries, etc. Specification: Item Type: Automatic Dual Power Transfer Switch Product Model: NLQ4-125/4P Rated Current: 100A Rated voltage: 400 V AC Insulation voltage: 690 V AC Rated frequency: 50Hz/60Hz Electrical class: insulation type class PC Lifespan: Electric: 2000 times; Mechanical: 5000 times Rated short-circuit current: 50kA SCPD (Fuse): RT16-00-63A Rated pulse withstand voltage: 8kV Control circuit: Rated control voltage Us: AC220 V 50Hz Normal working conditions: 85% Us-110% Us Auxiliary circuit: 2 independent relays, each relay contains 2 sets of transformer contacts Contact Capacity: AC220V 50Hz Touch Time: <50 ms Operation time: <50ms Return time: <50 ms Shutdown time: <50ms List of packages: 1 x Automatic Dual Power Transfer Switch Note: 1. The maximum ambient temperature should not exceed 40, the minimum should not be lower than &＃8209;5, and the average temperature within 24 hours should not be higher than 35.2. The height of the installation site should not be higher than 2000m.3. When the maximum temperature reaches 40, the relative humidity at the installation site should not exceed 50%; when the temperature is the lowest temperature &＃8209;5, the relative humidity is higher, for example, if the temperature is 25, the relative humidity is 90%. Special measures should be taken to cope with occasional condensation on the surface of the product due to temperature changes.4. During conversion, the internal switch will lose the coil in the control circuit. The coil can operate normally at 85%&＃8209;110% of rated operating voltage. Too low voltage in the coil can cause the coil to heat up or burn out. Please check the integrity of ATS before installation, enable or disable ATS za operational lever, check transmission flexibility and detect normal and backup load generation and disconnection conditions at each stage.