Mns Low Voltage Switchgear

The MNS low voltage switchgear uses standard modules. We assemble it in our factory. It is suitable for AC 50–60 Hz power systems up to 660V. It is widely used in power generation, transmission, distribution, and power control. The core design concept is standardization and modular construction. We use C-type steel frames based on a 25 mm module. We design each functional unit, such as protection, operation, and control, as a standard drawer module. You can mix and match these modules to meet different power needs. This MNS low voltage switchgear is very flexible.

The cabinet usually has three compartments. The horizontal busbar chamber is at the back, the device chamber is at the front, and there is also a cable chamber. The drawers have three or four clear positions: connected, test, and disconnected. Each drawer has a reliable mechanical lock, which keeps operation safe. The rated working voltage is 380V, 400V, or 660V. The horizontal busbar current can reach 5000A to 6300A. The vertical busbar current is usually 900A to 1600A. The short-time withstand current is 80kA to 100kA. The peak withstand current is 176kA to 250kA. The standard protection level is IP30 or IP40, and IP54 is available for special requirements. This MNS low voltage switchgear complies with IEC 61439-1 and GB 7251.

Drawer sizes are highly standardized. Common sizes include 8E/4 (1/4 unit), 8E/2 (1/2 unit), 8E, 16E, and 24E. You can mix different drawer sizes in one cabinet. We use high-strength, flame-retardant plastic parts for functional boards and insulation. This helps prevent arc spread and keeps people safe. The mechanical lock ensures that the drawer can only be pulled out or inserted in the correct position, so no live operation is possible. This MNS low voltage switchgear is suitable for power plants, substations, factories, urban projects, tall buildings, airports, and ports. With a special design, it can also be used on offshore oil platforms and in nuclear plants. We provide a 1-year warranty for every MNS low voltage switchgear unit. If something breaks, we inspect the damage and send replacement parts.