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Automatic Transfer Switch (ATS) NLQ7 400V 4P 63A
The NLQ7 400V 4P 63A transfer switch, also known as a network-generator switch, is a PC-type switch designed for automatic transfer between two independent power sources, such as the mains and a generator or other backup power source. The device monitors the parameters of the primary source and, in case of power failure, low or high voltage, automatically switches to the backup source, ensuring continuous operation of the loads. Once the parameters of the primary source are restored, the switch automatically returns to the main source.
The switch features a 4-pole (4P) design, intended for three-phase 400V AC installations, and allows for automatic or manual operation. Due to its PC category, the device permits switching under load.
NLQ7 is used in, among other applications:
Main features:
Technical Data:
Rated operating current (In) 63 A Rated operating voltage (Ue) 400V AC Rated insulation voltage (Ui) 690V AC Rated frequency 50/60 Hz Number of poles 4P Device category PC Design Two positions (Supply A / Supply B) Usage category AC-31B Impulse withstand voltage (Uimp) 8 kV Rated short-circuit current 10 kA (50 kA with RT16 fuse) Transfer time 30 ms Operational modes Automatic / Manual Mechanical endurance 6000 cycles Electrical endurance 1500 cycles Enclosure protection class IP30 Overvoltage category III (power circuit), II (control circuit) Installation altitude up to 2000 m above sea level Operating temperature -5°C to +40°C Storage temperature -25°C to +55°C Average temperature over 24 hours +35°C Degree of pollution 3 Relative humidity 50% at +40°C (higher at lower temperatures) Installation method On DIN railSpecifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.