Low Voltage Switchgear

In modern industrial and infrastructure fields, the reliability requirements for low-voltage distribution systems are getting higher and higher.MNS low-voltage distribution cabinets, as a kind of modular and multi-functional medium-voltage distribution equipment, have become an indispensable distribution and control system in these fields due to their flexible configurations, high reliability, and good expandability.

MNS low-voltage distribution cabinet is designed in accordance with international standard IEC60439 and domestic standard GB7251.1. It adopts a highly flexible cabinet structure, which allows the installation of various types and specifications of components according to the needs of users and different usage occasions. This design not only allows the distribution cabinet to easily adapt to a variety of different power distribution and control needs, but also allows new components to be easily added according to future expansion needs.

A distinctive feature of MNS low-voltage distribution cabinets is their modular design. By adopting standardized components, users can select appropriate circuit breakers, contactors, relays, protection devices, etc. according to their actual needs, thus achieving efficient power distribution and control. This modular design not only improves the reliability of the distribution cabinet, but also allows new components to be easily added according to future expansion needs, thus realizing long-term sustainable development.

MNS, GCK, GCS Product Model and Meaning Product Model and Meaning

Service environmental conditions

◆ Ambient temperature: -5℃~+40℃, the average temperature within 24h is not higher than +35℃;

◆Altitude: 2000m and below;

◆Atmospheric conditions: clean air, relative humidity not more than 50% at maximum temperature +40℃, larger relative humidity is allowed at lower temperatures (e.g. 90% at +20℃), and the effect of condensation which may be produced by chance due to the change of temperature should be considered;

◆The device is adapted to the transportation and storage process at the following temperatures: between the ranges of -25°C to +55°C, and up to +70°C in a short period of time (not exceeding 24h), the device should not suffer any irrecoverable damages at these limit temperatures, and it should be able to work normally under the above conditions;

◆ When the device is used in offshore oil drilling platforms and nuclear power plants, a separate technical agreement shall be signed.

If the above conditions can not be met, the user and the manufacturer shall negotiate to solve the problem.

Ordering instruction

When ordering, the user must provide the following information

◆ Primary circuit scheme and single line system diagram;

◆ Schematic diagram or wiring diagram of secondary circuit;

◆ Arrangement diagram of the device and layout diagram of the distribution room;

◆ Detailed specification and quantity of electrical equipment installed in each device;

◆ Provide the working current and short-circuit current of the horizontal busbar and select the busbar specification according to the factory standard; if the busbar specification is not indicated, it will be selected by the manufacturer;

◆ Busbar system Ll, L2, L3, N, PE or Ll, L2, L3, PEN, if not specified, selected by the manufacturer;

◆ Provide the name to be used for each circuit (limited to 10 characters or less) or, if not provided, a blank symbol plate only by the manufacturer;

◆ The protection class of the device enclosure (IP30, IP40) whether the cabinet bottom is to be closed or not, if not specified, P30 and the cabinet bottom is not closed;

◆ The surface paint color of the device, if not specified, the color specified by the manufacturer.

MNS Technical Parameters

GCK Technical Parameters

GCS Technical Parameters

Customer Site Factory Visit

Certification