Automatic transfer switch (АВР) 250A NXZM 250S/3B CHINT

Automatic transfer switch (АВР) CHINT NXZM-250S/3B 250A The one-piece CHINT automatic transfer switch of the NXZM series in frame size 250S is a highly reliable solution for ensuring uninterrupted power supply to industrial and civil facilities. The device is a single intelligent unit consisting of two moulded-case power circuit breakers, a reliable motor operator and a microprocessor controller. The NXZM-250S/3B is designed for automatic transfer to a standby power source when faults occur on the main incomer, providing protection against overload, short circuit and open-phase conditions. Technical parameters Manufacturer: CHINT Electric Series: NXZM Rated current (In): 250 A Number of poles: 3P (three phases) Frame size: 250S Breaking capacity (Icu): 35 kA (at 400V) Rated voltage (Ue): 400/415 V AC Controller: Type B (basic with extended settings) Transfer time: less than 3.0 s Mounting method: On a mounting panel (vertically) Functional capabilities The microprocessor control unit analyses the voltage parameters (overvoltage, undervoltage, phase loss) in real time. The LCD display shows the present voltage values and the state of the incomers. The user can flexibly set the transfer time delays (from 0 to 30 seconds) to prevent operation during brief voltage dips. The device is equipped with a fire release function (remote forced disconnection of both incomers), which is a mandatory requirement for building safety systems. Advantages High compactness: Integrating all components in one housing saves up to 40% of the space in the distribution board compared with discrete transfer switching circuits. Mechanical reliability: The built-in interlocking system eliminates the risk of a phase-to-phase short circuit caused by simultaneous connection of two sources. Ease of operation: A port for a remote control panel and the option of manual transfer with a special handle when there is no power. Energy efficiency: The motor operator consumes energy only at the moment of transfer; the rest of the time the system is in monitoring mode. Versatility: Suitable for operation in Mains-Mains or Mains- pairs

Manufacturer

CHINT

Shipped from the Almaty warehouse on the day of your request. Across Kazakhstan we ship by freight carriers; the manager will calculate the cost.

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