CertificationsIEC 62271-200, IEC 694, GB3906, DIN VDE 0670
With over a decade of expertise in low-voltage power distribution, HUAJIDIAN specializes in GCK low voltage switchgear rated for AC 400V/50Hz and currents of 400–3150A. Featuring three-position mechanical interlocking drawer units, this equipment offers high short-time withstand current capabilities and flexible protection ratings. It supports intelligent monitoring, customized anti-corrosion/moisture-proof treatments, and pre-installation site surveys, making it widely used in domestic industrial, commercial, and rail transit projects.
HUAJIDIAN GCK low voltage switchgear utilizes a withdrawable drawer design for easy maintenance. It allows for flexible configurations—including incoming feeder cabinets, feeder drawer cabinets, and metering cabinets—to handle motor start/stop control and short-circuit/overload protection. It is a mainstream modular low-voltage solution for high-capacity power distribution rooms.
As a reliable provider of one-stop power distribution solutions, we offer various value-added customization services: non-standard cabinet dimensions, specialized anti-corrosion/moisture-proof treatments, and the integration of remote communication and online energy monitoring modules. We also provide complimentary pre-project site surveys to ensure the equipment aligns with the site's load layout.
Each unit comes with 3C certification, a factory certificate of conformity, and a primary system schematic. The cabinet sheet metal carries a 2-year warranty, while internal components adhere to original manufacturer warranty standards; we also provide lifelong technical consultation and spare parts supply.
Application Scenarios
1. Industrial plants, chemical factories, and coastal workshops exposed to salt spray
2. Large commercial complexes and office buildings
3. Urban rail transit and municipal underground utility tunnel projects
4. Centralized motor control areas and power distribution/metering rooms within industrial complexes
AC380/400V, 50Hz, applicable for civil and general industrial distribution networks
Rated Working Current
400A ~ 3150A; Max main busbar 3150A, each branch circuit ≤630A
Short-Time Withstand Current
15kA ~ 50kA high breaking capacity configuration, stable against severe short-circuit impact for complex industrial load balance
Protection Level
Standard IP30; Optional upgraded IP40 / IP54 for humid, dusty, corrosive working environments
Cabinet Structural Form
Fully modular assembly with detachable shake-out drawer functional units, independent main circuit isolation
Certification Compliance
Full series passed 3C mandatory certification, complies with GB7251.1 national standard
Standard Operating Environment
Ambient temperature -5℃ ~ +40℃; Stable operation below altitude 2000m; IP54 anti-corrosion customized version for chemical plants, underground pipe galleries and coastal high salt fog zones
Structural Design and Key Features
1. 8MF Profile Bolt-Assembled Cabinet (Weld-free)
The cabinet is assembled using standard 8MF cold-formed profiles and bolts, creating a weld-free frame with high mechanical strength capable of withstanding deformation caused by short-circuit electromagnetic forces.
The cabinet panels are made of cold-rolled steel, treated with pickling, phosphating, and epoxy electrostatic spraying for superior corrosion and aging resistance, ensuring durability without rusting or paint peeling during long-term use in distribution rooms. Modular cutouts are pre-reserved to facilitate future upgrades and modifications.
2. Three-Position Safety Interlock Drawers
- Service Position: Drawer fully inserted; both main and secondary control circuits are connected, enabling normal operation.
- Test Position: Main circuit disconnected; secondary circuit energized for testing/commissioning without driving downstream loads.
- Disconnected Position: Drawer fully withdrawn; both main and secondary circuits de-energized, ensuring safety for maintenance and component replacement.
Equipped with a mechanical locking mechanism that prevents forced withdrawal while the drawer is energized, eliminating safety hazards.
Core Product Advantages
1. Lower Cost for Capacity Expansion and Retrofitting
Standardized drawer unit specifications allow for adding load capacity simply by installing additional drawer modules—without modifying the main cabinet frame—resulting in retrofit costs far lower than those for fixed-type GGD cabinets.
2. Higher Space Utilization
With identical external dimensions, GCK low voltage switchgear accommodates 60% more outgoing circuits than fixed cabinets, reducing the required footprint of the power distribution room and saving on civil engineering costs.
3. Strong Environmental Adaptability
Standard models suit conventional indoor environments; customized IP54 anti-corrosion cabinets are available for harsh conditions such as chemical plants, underground utility tunnels, and coastal areas with high salt-mist exposure.
4. Supports Intelligent Upgrades
Modules for remote communication and online energy consumption monitoring can be added to enable data uploading and remote fault alarms, facilitating digital transformation for smart factories and intelligent buildings.
Real-World Project Examples
Case 1: Coastal Fine Chemical Plant in Shandong
Due to high humidity and severe salt-mist corrosion, the plant procured 32 units of HUAJIDIAN’s customized IP54 anti-corrosion GCK low voltage switchgear. Featuring thickened anti-corrosion coatings and sealed drawer designs, the units have operated continuously for four years without rust or insulation degradation. Motors on individual production lines can be withdrawn for maintenance without a plant-wide power outage, reducing downtime-related losses by 70% compared to the previous fixed cabinets.
Case 2: 38-Story Commercial Office Building in Jiangsu
The underground power distribution room is equipped with 18 standard IP30 cabinets, handling power distribution for HVAC systems, elevators, lighting, and fire safety equipment. The high-density drawer layout saves nearly 20 m² of civil engineering space in the power distribution room; equipped with an energy consumption monitoring module, property management can view real-time electricity data to optimize peak/off-peak usage and reduce electricity costs.
FAQ
Q1: Can GCK low voltage switchgear be used in chemical plants or coastal areas with salt-spray environments?
A1: Yes. High-protection versions (IP40, IP54) are available, featuring thickened epoxy-coated cabinets, sealed drawers, and salt-spray resistant surface treatments, making them suitable for chemical workshops, underground utility tunnels, and coastal facilities; the standard IP30 version is suitable only for dry indoor power distribution rooms free of corrosive gases.
Q2: What are the differences between GCK withdrawable switchgear and GGD fixed switchgear regarding capacity expansion and the number of outgoing circuits?
A2: There are two key differences: First, GCK drawers are standardized; adding new loads simply requires installing an additional drawer without modifying the cabinet frame, resulting in modification costs that are less than half those of GGD units. Second, for cabinets of the same size, the number of outgoing circuits is increased by 60%, significantly reducing civil engineering investment for the power distribution room.
Dimension A
Dimension B
Dimension a
Dimension b
600
800
490
690
1000
490
890
800
800
685
690
1000
685
890
1000
800
890
690
1000
890
890
Hot Tags: GCK Low Voltage Switchgear, China, Manufacturer, Supplier, Factory
We use cookies to offer you a better browsing experience, analyze site traffic and personalize content. By using this site, you agree to our use of cookies.Privacy Policy