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Technical Article

 

380-660V 630-3150A Low Voltage Switchgear Fixed Type Switch Cabinet

06-12 2025 | By:


 380-660V 630-3150A Low Voltage Fixed-Type Switchgear Cabinets

Fixed-type low voltage switchgear cabinets (380-660V, 630-3150A) are critical components in modern power distribution systems, offering reliability and versatility for industrial and commercial applications. Below is a comprehensive analysis of their specifications, advantages, and deployment contexts.

380-660V 630-3150A Low Voltage Switchgear Fixed Type Switch Cabinet

380-660V 630-3150A Low Voltage Switchgear Fixed Type Switch Cabinet


I. Key Models & Specifications

The primary fixed-type models include GGDGCK, and PGL Series, with standardized parameters shown below:

Parameter Specification Range Notes
Rated Voltage 380V, 660V Excluding ceramic components
Protection Rating IP54/IP65 Dust/water resistance
Structure Vertical layout, double-break contacts Dual-coil energy-saving operation
380-660V 630-3150A Low Voltage Switchgear Fixed Type Switch Cabinet

380-660V 630-3150A Low Voltage Switchgear Fixed Type Switch Cabinet


II. Core Advantages

  1. Operational Efficiency

    • Energy Savings: Dual-coil design reduces operating current by >40% .
    • Zero Noise: DC electromagnetic systems eliminate acoustic pollution .
  2. Durability & Safety

    • Long Lifespan: Anti-welding contacts withstand >100,000 mechanical cycles
    • Fail-Safe Structure: Mechanical interlocks prevent accidental disengagement
  3. Adaptability

    • Multi-Voltage Support: Compatible with 220V–660V AC/DC sources
    • Modular Accessories: Supports 4NO+4NC auxiliary contacts

III. Application Scenarios

  • Industrial Plants: Motor control cabinets (MCC) for pumps/VFDs
  • Power Infrastructure:
    • Capacitor compensation cabinets
    • Ring Main Units (RMUs) for 6.6kV–22kV substations
  • Commercial Buildings:
    • Main distribution boards (GGD/PGL)
    • Concealed junction boxes (IP65-rated)

IV. Environmental Requirements

Factor Specification
Temperature -25°C to +40°C (operational)
Humidity ≤95% (non-condensing)
Installation Altitude ≤2000m ASL
Pollution Degree Level 3 (IEC 60664)

Critical Note: Cabinets require >1.5MΩ insulation resistance before energization. Moisture-exposed units must undergo drying

380-660V 630-3150A Low Voltage Switchgear Fixed Type Switch Cabinet

380-660V 630-3150A Low Voltage Switchgear Fixed Type Switch Cabinet


V. Industry Compliance

All models adhere to:

  • IEC 61439-1/2 (low-voltage assemblies)
  • GB 7251.1 (Chinese LV switchgear standard)

Fixed-type LV switchgear (380-660V, 630-3150A) balances compact engineering with robust performance, making it ideal for energy-intensive sectors.











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