Automatic transfer switch (АВР) 125A NZ7 250S CHINT

Automatic transfer switch (АВР) unit CHINT NZ7-250S/3P 125A The NZ7 series automatic transfer switch from CHINT Electric is a one-piece intelligent device designed to transfer the load automatically to a standby power source when faults occur in the main supply. This model combines two moulded-case circuit breakers, a motor operator and a control controller. The device ensures uninterrupted power supply to critical consumers, responding instantly to phase loss, voltage dips or surges, and changes in mains frequency. Technical parameters Rated current: 125 A Number of poles: 3P (three-pole) Rated voltage: 400 V Device type: One-piece unit Ultimate breaking capacity: 25 kA (S series) Operating temperature range: from -5°C to +40°C Operating modes: Automatic, manual, remote Mounting type: On a mounting panel Design features The NZ7 device is built in a compact housing, which saves considerable space in the distribution board compared with circuits assembled from separate contactors. The intelligent controller allows flexible setting of transfer parameters such as the transfer delay time and the voltage operating thresholds. Mechanical and electrical interlocks prevent simultaneous connection of two power sources, guaranteeing safe operation. An LCD display on the front panel provides visual monitoring of the current state of the supply and setting of the operating modes. Advantages High reliability: The use of NM1 series circuit breakers as the basis of the design ensures guaranteed protection against short circuits and overloads. Ease of setting: The intuitive controller interface makes it possible to quickly set the required time intervals and voltage levels. Functionality: Support for operation with generator sets (a dry contact is provided for starting a diesel generator set). Cost-effectiveness: Lower board design and assembly costs thanks to a ready-made factory solution. Scope of application The NZ7-250S model rated at 125 A is widely used at civil and industrial construction sites in Almaty that require a higher category of power supply reliability. It is ideally suited for installation in hospitals, shopping centres, banks, data centres and residential complexes. The device provides automatic transfer between two independent incomers or in a mains-generator arrangement, maintaining stable operation of security, fire-extinguishing and lighting systems.

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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