GCK Upgraded Low-Voltage Withdrawable Switchgear with CSL Manual-Pull Mechanism

Key Features of the GCK Upgraded Switchgear

Modular Construction
Flexible and customizable design, compatible with multiple functional units such as feeders, motors, and capacitors.

Drawer Heights Available
Units available in 150mm, 160mm, 200mm, 300mm, 400mm, and 600mm drawer heights. One panel can support up to 24 outgoing circuits.

Enhanced Interlock Mechanism
Prevents drawer movement when the breaker is closed, improving operator safety.

Optimized Internal Structure
Clear separation of primary and secondary circuits, with easy maintenance access.

Standard Compliance
Conforms to IEC 61439-2, GB7251.1, and other relevant standards.

CSL Manual-Pull Mechanism – Structure & Operation

The CSL pull mechanism offers a visually clear and physically controlled operation across three distinct positions: Disconnected, Test, and Connected. The ergonomic design ensures safe and convenient drawer manipulation.

Structural Advantages:
Cost-effective and simple mechanism

Aesthetically pleasing and user-friendly

Smooth insertion and withdrawal of drawers

Suitable for small and medium-sized drawers requiring frequent maintenance or testing

Mechanically interlocked with the main circuit breaker

Operating Logic:
Disconnected Position
The drawer is not electrically connected; both primary and secondary circuits are isolated. Display shows “Disconnected.” The drawer can be manually pushed forward.

Test Position
By gently pushing the drawer with both hands using the side handles, the display shows “Test.” In this position:

Secondary circuit is connected

Primary circuit remains isolated

Auxiliary switch is energized, allowing for test operations

Connected Position
Push forward while pressing the left-side unlocking button, display changes to “Connected”:

Both primary and secondary circuits are connected

Auxiliary circuit remains energized

Breaker Interlocking Mechanism:
When the main circuit breaker is closed, the rotation of the handle drives a square shaft that locks into the drawer’s lower base plate.

This locks the drawer in place, preventing it from being moved or withdrawn.

The drawer can only be pulled out after the breaker is fully switched OFF.

In the “Connected” position, unlocking and withdrawing the drawer requires pressing the left handle and unlocking button simultaneously.

Application Areas
Power distribution systems in factories and plants

Motor control centers (MCC) for pumps, compressors, and conveyors

Low-voltage cabinets in oil & gas, transport, data centers, and hospitals

Renewable energy control cabinets