GCK Withdrawable Low Voltage Switchgear
The cabinet frame construction utilized in the GCK(L) system is modular, and different standard components may be put in the cabinet to meet a variety of usage needs. The withdrawable unit uses aluminum alloy sliding guide rails and a spiral propulsion mechanism, with a clear operating position and simple, dependable operation.
The GCK(L) system low-voltage withdrawable switchgear is suited for all power generating, distribution, and power usage applications, including power systems, petrochemicals, industrial and mining businesses, civil buildings, etc.
GCK is a withdrawable-type low voltage switchgear family — outgoing units ride in drawers on aluminium alloy guide rails with a screw propulsion mechanism, so a feeder or motor starter can be rolled out to the test position, serviced, or swapped without de-energizing the section behind it. The modular frame takes different standard components to cover power centers and motor control centers in power systems, petrochemical plants, industrial and mining enterprises, and civil buildings.
We build GCK boards drawer by drawer from your load schedule — drawer assignments, interlocks, and spare positions planned around the growth of the plant. The fabrication floor behind these boards has delivered 4,000+ electrical projects since 2010, with CNC-machined frames plus in-house wiring and testing making every drawer a repeatable, interchangeable unit.
Feature of Withdrawable Low Voltage Switchgear
Standard modular design allows for the assembly of protection, operation, conversion, control, regulation, measurement, instructions, and other standard units. Users can mix and match frame constructions and drawer units to meet their specific demands.
Made of C-profiles, the module measures 25mm. It offers high structural adaptability and flexible assembly to accommodate a variety of configurations.
Requirements for form protection and usage environment. All structural components of the cabinet are galvanised and passivated. The door panels and side doors that surround the cabinet frame are electrostatically sprayed.
The product boasts high mechanical strength and dependable insulation, ensuring safety and dependability. Additionally, all functional elements are replaceable. After a failure, the identical functional unit can be replaced.
Reduce power outages and increase power supply dependability.- The projects that have passed numerous high-performance tests are listed below:
- Earthquake Resistance Test (seismic intensity level 9)
- Arc burning test (100kA/0.5 seconds)
- Salt spray test (96 hours).
- High altitude test (4000 m)
Technical Parameters
| Project | Unit | Numerical value | |
|---|---|---|---|
| Rated voltage | V | AC380,AC660 | |
| Rated power | Hz | 50/60 | |
| Rated operating current | Horizontal bus | A | Less than or equal 4000 |
| Vertical bus | A | Less than or equal 6000 | |
| Rated short-time withstand current (1s) | KA | 30,50,80 | |
| Rated peak withstand current | KA | 63,105,176 | |
| Dielectric strength | V/1min | 2500 | |
| Rated insulation voltage | V | 660,1000 | |
| Control motor capacity | KW | 0.5~155 | |
| Protection level | IP30/IP40 | ||
| Dimensions(L*W*H) | mm | 600(800/1000)*600(800/1000)*2200 | |
Key Specifications & Options
The configuration below reflects the options we build to order for GCK withdrawable low voltage switchgear. Every parameter can be adjusted to match your drawings and site conditions — send us your requirements and our engineers will confirm what applies to your project.
| Parameter | Options / Typical Range |
|---|---|
| Assembly type | Withdrawable (drawer-type) low voltage switchgear for power center and motor control duty |
| Rated voltage | AC 50 Hz, 380/400 V working voltage on a 660 V insulation class |
| Drawer units | Drawer ratings and slot counts configured to your feeder and motor schedule |
| Main busbar current | Sized to the load schedule of the line-up |
| Drawer mechanics | Aluminium slide rails, screw propulsion, and interlocked test/disconnect/operating positions |
| Protection degree | IP30–IP40 typical executions |
| Applicable standards | GB 7251 series for LV assemblies, corresponding to IEC 61439 |
| Typical applications | Motor control centers, process feeders, petrochemical and mining plants, high-rise distribution |
Frequently Asked Questions
GGD or GCK — which one fits my project?
The question is maintenance access: if a circuit can wait for a planned shutdown, fixed-type GGD is the economical answer; if operations cannot tolerate losing the section while one feeder is serviced, GCK drawers let that unit roll out on its own. Motor-heavy continuous loads — pumps, fans, compressors — are the classic GCK case.
What are the maintenance advantages of withdrawable drawers?
A drawer rolls to a disconnected test position without opening the section: faults are isolated in minutes, a spare drawer restores the feeder the same shift, and starters can be bench-serviced off-line. Sections stay energized, which matters most in continuous process plants.
Are drawers interchangeable between positions of the same rating?
Drawers of the same unit rating and scheme are interchangeable within a line-up built as one assembly — positions share the compartment interfaces. We build and wire to keep that promise and can supply spare drawers configured to your schemes for the maintenance store.
What standards govern GCK assemblies?
GCK falls under the GB 7251 series for low voltage assemblies, corresponding to IEC 61439 — covering design verification, internal separation, and short-circuit withstand. We reference these standards in design and deliver assembly documentation with the board.
Related Guides
- Low-Voltage-Switchgear Guide: Functions, Types, and Selection Inputs — the family landscape GCK sits in
- Motor Control Panel Types: Functions, Interfaces, and Selection Inputs — choosing the motor control architecture above the drawers
- Understanding the Differences Between High, Medium, and Low Voltage Switchgear — why voltage class decides the cabinet family
- GGD Low Voltage Fixed Switch Cabinet — the fixed-type alternative when continuity is less critical
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