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GCK low-voltage withdrawable switchgear

The GCK Series is a high-performance low-voltage withdrawable switchgear system designed for power distribution and motor control in 50Hz/380V-660V electrical systems. It is widely applied in power plants, substations, industrial and mining enterprises, and high-rise buildings. The system is engineered to provide a reliable and safe solution for power centers (PC) and motor control centers (MCC), fully complying with IEC60439-1 and GB7251.1 standards.

Product Overview

The GCK system features a modular design based on a specialized frame assembled from FA profiles or C-shaped profiles with a 20mm or 25mm modular hole pattern. This structure ensures high mechanical strength and precise alignment of internal components. The design focuses on high breaking capacity, excellent thermal stability, and flexible circuit configurations. Its compact architecture allows for a high density of functional units, optimizing space in electrical rooms without compromising safety or accessibility.

Product Features

  • Modular Safety Compartments: The cabinet is strictly divided into functional unit (drawer), busbar, and cable compartments, effectively isolating faults and preventing accidental contact.
  • Superior Mechanical Strength: The frame’s specialized profile design provides exceptional resistance to short-circuit forces and seismic stresses.
  • Flexible Drawer Units: Supports multiple drawer heights (1/2 unit, 1 unit, 1.5 units, 2 units, 3 units) to accommodate various electrical components and control requirements.
  • Reliable Interlocking System: Equipped with a mechanical interlocking device that ensures the drawer can only be operated when in the correct position, preventing unauthorized or accidental removal under load.
  • Standardized Components: Most parts are standardized and modular, allowing for easy expansion, modification on-site, and quick replacement of functional units.

Technical & Artistic Details

The GCK system balances industrial durability with a professional design tailored for long-term service.

  • Thermal Management: Features optimized ventilation ports and internal partitioning to manage temperature rise during continuous high-load operations.
  • Corrosion Resistance: All structural and internal parts are treated with high-quality galvanization or epoxy powder coating for durability in humid or industrial environments.
  • High Breaking Capacity: The busbar system is designed to withstand significant thermal and dynamic stresses, with rated short-time currents up to 80kA.
  • Ergonomic Design: Functional units are designed for smooth operation, with clear position indicators and easy-access cable terminals for simplified maintenance.

Main Technical Parameters

Functional Unit (Drawer) Specifications

Cabinet Dimensions

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