GCK Low Voltage Switchgear for Power Distribution
High-Capacity 400V Distribution with Withdrawable Modular Design
GCK Low Voltage Switchgear Overview
Conluxs GCK AC Low-Voltage Switchgear · 400V · 6300A Max
Product Overview
The Conluxs GCK AC Low-Voltage Switchgear is engineered for high-availability power distribution in industrial plants, commercial complexes, and data center facilities. Rated for 400V / 6300A maximum capacity, the withdrawable modular design enables rapid unit replacement without de-energizing the entire switchgear.
Key Features
- Withdrawable Design: Modular drawer-type functional units enabling hot-swap maintenance without system shutdown.
- High Breaking Capacity: 50kA / 65kA / 80kA short-circuit breaking capacity with selective coordination.
- Intelligent Monitoring: Optional digital multifunction meters with RS485 Modbus communication for remote monitoring.
- Flexible Configuration: Customizable busbar ratings, feeder counts, and compartment layouts to match site requirements.
What Is It
GCK AC Low-Voltage Switchgear — high-capacity 400V distribution with withdrawable modular design for industrial plants, commercial complexes, and data center facilities.
Key Applications
Power distribution in industrial plants, commercial complexes, and data center facilities.
GCK Switchgear Main Specifications
| Parameter | Specification |
|---|---|
| Rated Insulation Voltage | 660V |
| Rated Operating Voltage | AC 380V / 400V |
| Main Busbar Rated Current | Up to 6300A |
| Rated Frequency | 50Hz / 60Hz |
| Breaking Capacity | 50kA / 65kA / 80kA |
| Drawer Unit Current | Up to 630A |
| Protection Rating | IP30 / IP40 |
| Standard | GB 7251.1 / IEC 61439-1 |
GCK Low Voltage Switchgear Design and Power Distribution Architecture
Withdrawable Modular Architecture
The GCK assembly is built around withdrawable drawer-type functional units mounted in vertical sections. Each drawer unit carries its own switching and protective devices, which allows a unit to be isolated and withdrawn for inspection or replacement while the remaining circuits stay energized. This architecture suits operating requirements for service continuity, rapid unit replacement and flexible circuit configuration.
Main Busbar and Protection Coordination
Power enters through the main busbar, rated up to 6300A, and is distributed to outgoing drawer units rated up to 630A. The assembly is rated for 50kA / 65kA / 80kA short-circuit breaking capacity with selective coordination, so a downstream fault is intended to be cleared by the nearest appropriate device where the system design allows.
Monitoring and Enclosure Options
Optional digital multifunction meters with RS485 Modbus communication can be fitted for remote monitoring of electrical parameters. The assembly is available with IP30 / IP40 protection ratings and is designed and tested to GB 7251.1 / IEC 61439-1.
GCK vs GGD, GCS and MNS Low Voltage Switchgear
Low-voltage switchgear is produced in several assembly formats. The choice depends on the electrical duty, operating context, maintenance strategy and project requirements. The table describes classification, structure, application and configuration of GCK, GGD, GCS and MNS formats.
| Type | Classification | Typical Structure | Typical Application | Configuration Differences |
|---|---|---|---|---|
| GCK | Withdrawable drawer-type low-voltage switchgear | Drawer functional units mounted in vertical sections; units can be withdrawn while other circuits stay energized | Industrial plants, commercial complexes and data center facilities | Configurable busbar ratings, feeder counts and compartment layouts; drawer units up to 630A |
| GGD | Fixed low-voltage switchgear format | Fixed compartments and fixed-mounted devices | Distribution applications where the design is stable and maintenance can be planned around defined isolation procedures | Reserve capacity provided through spare ways and documented connection points; expansion depends on verified busbar and physical capacity |
| GCS | Drawer-type low-voltage switchgear | Withdrawable drawer units arranged in vertical sections | Applications requiring frequent unit maintenance, isolation or functional-unit change | Drawer units per vertical section; configuration defined by the load schedule and protection scheme |
| MNS | Modular low-voltage switchgear system | Frame built from 2mm Aluzinc C-profiles and 3mm galvanized G-profiles; flexible busbar system | Demanding environments and projects needing flexible layout schemes | Highly flexible configuration with integrated pressure relief channels |
GCK Switchgear Applications
Industrial Plants
Power distribution for motor loads, process continuity and downstream feeder coordination, where maintenance access and protection strategy drive the arrangement.
Commercial Complexes
Main and sub-distribution for commercial buildings, where withdrawable units support service continuity and simplified maintenance.
Data Center Facilities
Upstream low-voltage distribution feeding critical power paths. The GCK assembly is typically followed by UPS feeder panels, remote power panels (RPP), precision distribution cabinets and rack PDUs toward the server racks. For overhead delivery between the feeder layer and the rack, see the busway vs cable comparison for high-density data centers.
GCK Switchgear Selection Considerations
Selection starts from the electrical duty and operating context, not from the cabinet type alone. The following inputs define whether the GCK assembly fits the project.
- Electrical Duty: Confirm the nominal voltage, frequency, earthing system, continuous load and prospective short-circuit current at the connection point before comparing assemblies.
- Arrangement and Service Continuity: Compare fixed, plug-in and withdrawable approaches against circuit criticality, isolation needs, outage windows and operator procedures. The withdrawable GCK arrangement suits projects where rapid unit replacement and service continuity matter.
- Protection Coordination: The assembly rating must be coordinated with the interrupting capability, settings and coordination of the selected protective devices so that a downstream fault is cleared by the nearest appropriate device where the system design allows.
- Environment and Enclosure: Consider indoor or outdoor location, dust, water, condensation, temperature, ventilation and cable entry. The GCK assembly is available with IP30 / IP40 ratings; higher ingress protection is not automatically the right fit if it conflicts with thermal management or the intended installation.
- Project Interfaces: Confirm drawings, labelling, test expectations, packing, shipping, site access, installation and commissioning responsibilities, and any documented expansion plan justifying reserved busbar capacity or spare ways.
Frequently Asked Questions
What is the GCK AC Low-Voltage Switchgear?
A high-capacity 400V power distribution system with a withdrawable modular design for industrial plants, commercial complexes, and data center facilities.
What is the rated voltage and current of the GCK switchgear?
The GCK switchgear is rated for 400V / 6300A maximum capacity.
Where is the GCK switchgear typically used?
In industrial plants, commercial complexes, and data center facilities.
What is the breaking capacity of the GCK switchgear?
The GCK switchgear offers 50kA/65kA short-circuit breaking capacity.
What related technical guides explain the GCK switchgear?
The Data Center Power Distribution Design Guide and the Low-Voltage Switchgear Selection Guide.
What standards does the GCK switchgear comply with?
The GCK switchgear is designed and tested to GB 7251.1 / IEC 61439-1, covering the general rules for low-voltage switchgear and controlgear assemblies.
Can GCK drawer units be replaced without shutting down the whole assembly?
Yes. The withdrawable modular design enables rapid unit replacement without de-energizing the entire switchgear.
How does GCK compare with other low-voltage switchgear formats?
GCK is a withdrawable drawer-type assembly, while GGD is a fixed format, GCS is a drawer-type format, and MNS is a modular system.
Related Power Distribution Products
- UPS feeder panel and cabinetUPS Feeder Panel & Cabinet for Data Centers
- precision distribution cabinetK-SPM Series Precision Distribution Cabinet
- rack PDU solutionsRack Power Distribution Units
- busway vs cable for high-density data centersOverhead Distribution Guidance
- data center power distribution applicationsData Center Power Distribution Design Guide
- low-voltage switchgear selection and application guideLow-Voltage Switchgear Selection Guide
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