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tia@nengfuelectrical.com
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2. MVnex-12 500mm Wide Air-Insulated Switchgear

2. MVnex-12 500mm Wide Air-Insulated Switchgear

MVnex is designed for medium-voltage distribution substations across a wide range of sectors:
Power Systems: HV/MV & MV/MV substations
Infrastructure: Hospitals, Airports, Ports
Buildings: Commercial Centers, Residential Blocks, Stadiums
Industries: Light Manufacturing, Metallurgy, Cement, Water Treatment
Electronics Facilities
Data Centers
Rail Transit
Oil & Petrochemical
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More Details

Features

  • Rated Voltage: 12kV / 24kV
  • Rated Insulation Level:
  • Power Frequency Withstand Voltage (50Hz, 1min): 42kV / 65kV
  • Lightning Impulse Withstand Voltage (1.2/50μs): 75kV / 125kV
  • Rated Short-Time Withstand Current (4s): 25 / 31.5 / 40kA
  • Rated Peak Withstand Current: 63 / 80 / 100kA
  • Internal Arc Classification: 31.5kA/1s; 40kA/1s
  • Earthing Switch Withstand: 31.5kA/4s; 40kA/4s
  • Protection Degree:
  • Enclosure: IP4X
  • Compartments: IP2X
  • Operating Environment:
  • Ambient Temperature: -15°C ~ +40°C
  • Altitude: ≤1000m
  • Humidity: 95% (24hr) / 90% (monthly average)

Advantages

  • Innovative “1+3” configuration for diversified options:
  • MVnex 12–24kV (Standard)
  • MVnex 550 (Compact)
  • MVnex 500 (Ultra-compact)
  • MVnex Smart (Intelligent)
  • Versatile configurations covering breaker panels, contactor panels, and custom units
  • Unique and comprehensive design supporting full 5-point mechanical interlocking for enhanced safety
  • Screw-driven earthing switch and multi-functional operation box
  • Integrated HVX sealed vacuum interrupter, highly adaptable and quality-assured
  • Quality You Can Trust

    Total Energy Solutions: From Engineering to Implementation

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    Nengfu's product lines cover design, engineering & production of diesel & gas generators, electrical cabinet , and EPC services.

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