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3. MVnex-12 550mm Wide Air-Insulated Switchgear

3. MVnex-12 550mm Wide Air-Insulated Switchgear

MVnex is tailored for medium-voltage power distribution stations in the following sectors:
Power Systems: HV/MV substations, MV/MV substations
Infrastructure: Hospitals, airports, ports
Buildings: Commercial centers, residential complexes, stadiums
Industries: Food & beverage, metallurgy, cement, water treatment
Electronics Plants
Data Centers
Rail Transit
Oil & Petrochemical Industries
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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 (1.2/50 μs): 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 Capability: 31.5kA / 4s; 40kA / 4s
  • Degree of Protection:
  • Enclosure: IP4X
  • Compartments: IP2X
  • Operating Environment:
  • Ambient Temperature: –15°C to +40°C
  • Altitude: ≤1000m
  • Humidity: ≤95% (24 hours), ≤90% (1 month)

Advantages

  • Innovative "1+3" configuration offers greater flexibility:
  • MVnex 12–24kV (standard)
  • MVnex 550 (compact)
  • MVnex 500 (ultra-compact)
  • MVnex Smart (intelligent type)
  • Compatible with breaker cabinets, contactor cabinets, and other specialized modules to meet industry-specific demands
  • Comprehensive and unique design with mechanical interlocks to ensure full five-fold safety protection
  • Screw-drive earthing switch and multifunctional mechanism operation box
  • Integrated HVX embedded pole vacuum circuit breaker ensures high reliability and adaptability to various environments
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    From R&D to after-sales service, we provide end-to-end solutions tailored to your industry needs.

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    Nengfu Electrical offers turnkey power solutions from concept to construction, handling all complexity in between.

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