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GCS low-voltage withdrawable switchgear

The GCS Series is a high-tech low-voltage withdrawable switchgear jointly designed by the former Ministry of Electric Power and the Ministry of Machine Building. It is specifically engineered to meet the needs of power users, industrial enterprises, and high-rise buildings requiring high reliability, safety, and advanced communication interfaces. This system is fully compliant with IEC60439-1 and GB7251.1 standards, serving as a premier solution for power distribution and motor control in modern 50Hz/380V-660V systems.

Product Overview

The GCS system is designed for high-capacity power centers (PC) and motor control centers (MCC). It features a robust frame assembled from 8MF cold-formed steel, which provides exceptional mechanical strength and precision. The unit is known for its high breaking capacity, excellent thermal stability, and flexible electrical schemes. Its modular design allows for a high density of functional units, significantly reducing the floor space required in electrical rooms while maintaining easy access for maintenance.

Product Features

  • Flexible Modular Design: The internal space is strictly divided into functional unit (drawer), busbar, and cable compartments to ensure maximum safety and fault isolation.
  • Enhanced Breaking Capacity: The main busbar system is designed to withstand high short-circuit levels, with rated short-time withstand currents up to 80kA.
  • Efficient Cable Management: Features a dedicated cable compartment with specialized exit components for easier installation and maintenance of both power and control cables.
  • Optimized Drawer Density: Supports up to 22 functional units (1/2 unit drawers) in a single cabinet, allowing for highly compact and efficient Motor Control Centers.
  • Advanced Interlocking: Each drawer is equipped with a comprehensive mechanical interlocking device to ensure the unit is in the correct position (Connected, Test, Disconnected) before operation.

Technical & Artistic Details

The GCS system balances heavy-duty engineering with a user-centric design for long-term reliability.

  • Thermal Management: The cabinet includes ventilation channels and optimized airflow paths to manage the temperature rise of high-current components.
  • Corrosion Resistance: All structural parts and internal partitions are treated with high-quality galvanized coatings or electrostatic powder spraying for durability in industrial environments.
  • Visual Monitoring: Equipped with clear position indicators for drawers and digital meters for real-time monitoring of electrical parameters.

Main Technical Parameters

Functional Unit (Drawer) Specifications

Cabinet Dimensions

Installation Diagram

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