Switchgear MNS Low-voltage Withdrawable Switchgear The MNS series low-voltage withdrawable switchgear is a combination cabinet assembled by the factory using standard modules, and its technology has reached international advanced levels. This series of low-voltage withdrawable switchgear is suitable for power plants, substations, petrochemicals, metallurgical rolling mills, transportation energy, light industry, textiles, industrial and mining enterprises, residential areas, high-rise buildings, etc. It is used for energy conversion, distribution, and control of power systems with AC 50-60Hz and rated working voltage up to AC 660V. This device complies with the national professional standards GB7251.1 "Low-voltage switchgear and controlgear assemblies" and JB/T9961 "Low-voltage withdrawable switchgear" and also conforms to international professional standards such as IEC439-1, VDE0660 Part 5.
Parameter
Product Introduction
Technical Parameters

 

Operating Environment Requirements

The ambient air temperature should not exceed +40°C or be lower than -5°C, and the average temperature within 24 hours should not exceed +35°C.

The air should be clean, with relative humidity not exceeding 50% at the highest temperature of +40°C. Higher relative humidity is allowed at lower temperatures, for example, 90% at +20°C, but considering temperature changes, occasional condensation may occur.

The altitude should not exceed 2000m.

This device is suitable for transportation and storage processes within the temperature range of -25°C to +55°C. In short periods (within 24 hours), it can reach up to +70°C. The device should not suffer any irreparable damage under these extreme temperatures and should operate normally under normal conditions.

If the above usage conditions cannot be met, it should be discussed and resolved by the user and the manufacturer.

When this device is used on offshore oil drilling platforms and nuclear power plants, a separate technical agreement should be signed.

Parameters Name

Unit

Content

Rated Insulation Voltage

V

500

Rated Operating Voltage

V

380

Maximum Rated Current of Main Busbar

A

1600

Rated Withstand Current of Main Busbar

kA/1s

30

Rated Peak Withstand Current of Main Busbar

kA/0.1s

75

Maximum Rated Current of Distribution Busbar (Vertical Busbar)

A

800

Peak Current of Distribution Busbar (Vertical Busbar)

Standard Type

kA/0.1s

75

Enhanced Type

kA/0.1s

85