MNS Low Voltage Withdrawable Switchgear

This series of low-voltage withdrawable switchgear is a combined cabinet type that is factory assembled (FBA) with standard modules. It is suitable for power plants, substations, petrochemicals, metallurgical steel rolling, transportation energy, light industry and textiles, and high-rise buildings.

Main Application: Used for power conversion, distribution, and control in power systems with an AC frequency of 50-60 Hz and a rated operating voltage of 660V AC and below. Complies with GB 7251.1 and IEC 439-1 international standards.

• Ambient air temperature: -5ºC to +40ºC (24h average ≤ +35ºC).
• Atmospheric conditions: Relative humidity ≤ 50% at +40ºC; up to 90% at +20ºC.
• Altitude: Should not exceed 2000 meters.
• Storage/Transportation: Suitable for -25ºC to +55ºC (short periods up to +70ºC).
• Special conditions: Offshore platforms or nuclear plants require separate technical agreements.

Cabinet Structure: Assembled from C-shaped profiles with 25mm modular mounting holes. Cabinet frames and inner partitions are treated with galvanization and phosphating for durability.

• Rated Insulation Voltage: 660V (1000V)
• Rated Operating Voltage: 380V, 660V
• Main Busbar Max Current: 5000A
• Rated Peak Withstand Current: 220kA/1s
• Protection Levels: IP30, IP40, IP54 (customizable)

• Professional project and process design based on equipment purchase plans and specific needs.
• Online assistance for installation and debugging provided for newly purchased products.
• Lifelong service system: Solutions provided within one working day of feedback.
• Strict compliance with ISO9001:2000 international quality management.