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Standard JP Distribution Box Specifications and Dimensions

Standard JP Distribution Box Specifications and Dimensions

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JP series distribution boxes are outdoor low-voltage integrated cabinets designed for AC 50/60Hz systems up to 400V, combining power distribution, metering, protection, control, and reactive power compensation in compact, pole-mounted enclosures.

Key Specifications

  • Voltage and Current Ratings: Suitable for AC 50Hz systems with rated voltage up to 380–400V and rated current up to 630A .
  • Protection Functions: Includes short-circuit, overload, overvoltage, leakage, and lightning protection. Optional modules for reactive power compensation and metering can be integrated .
  • Material and Construction: Typically made from 2 mm high-quality stainless steel or stainless steel composite panels with honeycomb structure. Features flame retardancy, thermal insulation, anti-condensation, and IP54 protection for outdoor use .
  • Environmental Conditions: Designed for ambient temperatures from -25℃ to +40℃, relative humidity not exceeding 90%, and altitudes up to 1000m. Should be installed in areas free from severe vibration, impact, or corrosive gases .
  • Standards Compliance: Conforms to GB/T 7251.1, GB/T 7251.12, GB/T 15576, IEC 61439.2, and has passed 3C and CQC certifications .

Physical Dimensions and Configurations

  • Cabinet Types: Available in vertical and horizontal configurations, with modular designs allowing combinations such as "metering + distribution + compensation" or "distribution + compensation" .
  • Size: While exact dimensions vary by manufacturer and configuration, JP cabinets are designed to be compact and pole-mountable, optimizing space for urban and rural installations. Typical enclosures are engineered to accommodate multiple modules while maintaining aesthetic and practical outdoor installation requirements .
  • Installation: Pole-mounted for outdoor transformers, suitable for urban grid renovation, rural grid upgrading, industrial enterprises, street lighting, and residential areas .

Features and Advantages

  • High Integration: Combines multiple functions in a single cabinet, reducing installation complexity.
  • Flexible Configuration: Modular design allows customization of feeder circuits, metering, and reactive power compensation.
  • Durability and Safety: Stainless steel construction ensures long-term outdoor reliability, with IP54 protection against dust and water ingress.
  • Energy Efficiency: Supports reactive power compensation and optimized power distribution for improved energy management . JP series distribution boxes are widely used in modern power grid transformations, providing a safe, reliable, and compact solution for low-voltage outdoor power distribution systems.
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