Looking for Customized GCS Switchgear Cabinets?
Contact our engineering team to get a free quotation or consultation for your low-voltage switchgear project.
Get a Quote Now
Low Voltage Switchgear & Distribution Panels
High Reliability LV MCC & Power Distribution Solution up to 4000A
GCS low-voltage withdrawable switchgear is a power distribution system with three-phase AC 50Hz, rated voltage 380V, designed for power distribution and motor control in power plants, substations, industrial and mining enterprises. This product features high breaking capacity, excellent dynamic and thermal stability, advanced structure, and high protection level, meeting the requirements of modern power systems for safe and reliable operation.
GCS Low Voltage Withdrawable Switchgear is a modular and type-tested low voltage power distribution system designed for motor control, power distribution, and reactive power compensation in industrial and commercial applications.
The system operates in AC 50/60Hz networks with rated voltage up to 690V and current up to 4000A, making it suitable for high-load and high-automation environments.
With a withdrawable drawer design, GCS switchgear ensures:
Fast maintenance
High operational safety
Flexible system expansion
It is widely used in power plants, petrochemical facilities, manufacturing plants, and large commercial buildings.
Contact our engineering team to get a free quotation or consultation for your low-voltage switchgear project.
Get a Quote Now
Ambient temperature: -15°C to +40°C
Daily average ≤ 35°C
Altitude ≤ 2000m
Relative humidity:
≤50% at 40°C
≤90% at 20°C
Installation inclination ≤ 5°
No explosive, corrosive, or conductive dust environment
Drawer units available in multiple sizes (1/2, 1, 1.5, 2 units)
Each MCC cabinet supports up to 22 drawers
Plug-in connection for fast replacement
The cabinet is divided into:
Functional unit compartment
Busbar compartment
Cable compartment
Each section is fully isolated to:
Prevent fault propagation
Improve system safety
Supports:
Power Distribution Center (PC)
Motor Control Center (MCC)
Capacitor Compensation Panels
Compatible with:
MCCB / ACB / fuse switch
Strong short-circuit withstand capability
Excellent thermal stability
Mechanical interlocking for safe operation
We provide customized configurations based on project requirements:
Intelligent monitoring system (IoT / SCADA)
Energy metering modules
Busbar system upgrades
IP54 / IP55 outdoor design
| GCS Low Voltage Withdrawable Switchgear Set | Specification |
| Rated Voltage | AC 380V / 400V / 690V |
| Rated Frequency | 50 / 60 Hz |
| Rated Current | Up to 4000A |
| Busbar Short-time Withstand | 50kA / 80kA (1s) |
| Peak Withstand Current | 105kA / 176kA |
| Insulation Voltage | 660V / 1000V |
| Protection Degree | IP30 / IP16:12:4340 |
| Busbar System | 3P4W / 3P5W |
Parameter Category | Technical Specifications |
Rated Characteristics | Rated Operational Voltage: 380V |
Short-circuit Performance | Rated Short-time Withstand Current: 50kA/1s (RMS) |
Protection Degree | Complies with IEC60529 |
Busbar System | Horizontal Busbar: Located at the rear of the cabinet |
Construction Types | Drawer Layer Height: 160mm (1/2 unit), 200mm, 240mm, 280mm, 320mm, 360mm, 400mm |
Installation Methods | Fixed, Plug-in, Withdrawable |
Compliance Standards | GB7251.1, IEC60439-1, JB/T9661 |
1. Advanced Structural Design
Frame using 8MF profiles, assembled structure with high precision and strength
Excellent interchangeability of drawer units, using serialized modular design
High protection level of enclosure, effectively preventing foreign object intrusion and electric shock
Separated compartment design, dividing the equipment compartment, busbar compartment, and cable compartment
2. High Reliability Electrical Performance
High breaking capacity, withstands short-circuit current up to 50kA
Excellent dynamic and thermal stability, ensuring safe and reliable system operation
High-quality conductive materials, using electrolytic copper busbars with excellent conductivity
Complete protection system, with multiple protections including overload, short-circuit, and earth fault
3. Flexible Usage
Various functional units, can be flexibly configured as needed
Drawer units have working position, test position, separated position, and withdrawn position
Mechanical interlock device, ensuring safe and reliable operation
Easy installation and maintenance, using front wiring method for convenient maintenance
4. Safety Protection Functions
Complete five protection functions, preventing misoperation
Reliable earthing system, ensuring personal safety
Excellent insulation performance, meeting international standard requirements
Complete protection measures, ensuring equipment safe operation
5. Intelligent Monitoring Functions (Optional)
Smart power meters, real-time monitoring of electrical parameters
Communication interface, supporting remote monitoring and control
Fault diagnosis function, timely detection and handling of faults
Data recording function, recording operation data and events
Power Plants: Auxiliary power centers and motor control centers
Substations: Station service and backup power systems
Industrial Facilities: Production lines, pumps, fans, and conveyors
High-rise Buildings: HVAC and power distribution systems
Infrastructure: Airports, ports, metro systems, and public utilities
Petrochemical Plants: Process control and distribution systems
Standard Type: For general industrial and commercial power distribution
Enhanced Intelligent Type: With smart metering and remote monitoring
Explosion-proof Type: For hazardous environments
High-altitude Type: For installations above 2000m
Tropical Type: For hot and humid climates
Single line diagram design
Technical proposal
Project-based customization
Quotation and lead time
Contact our engineering team to get a free quotation or consultation for your low-voltage switchgear project.
Get a Quote NowQ1：What are the main features of the GCS series withdrawable switchgear?
A: Our GCS switchgear features a modular design with a high breaking capacity and excellent thermal stability. It is specifically designed for power distribution and motor control in systems requiring high reliability, offering flexible assembly and easy maintenance.
Q2：What is the basic mod ulus of the GCS cabinet?
A: The GCS system uses a 20mm modular design. The drawer units are available in various heights, such as 1/2 unit, 1 unit, 2 units, and 3 units, allowing for a maximum of 22 circuits in a single cabinet to optimize space.
Q3：How does the "Withdrawable" mechanism ensure safety?
A: Each drawer has three distinct positions: Connected, Test, and Disconnected. Our mechanical interlocking system ensures that the drawer cannot be pulled out while the switch is closed, preventing accidental electric arcs and ensuring operator safety.
Q4：What is the maximum rated current and breaking capacity (Icu)?
A: Our GCS switchgear can handle a rated current up to 4000A for the main busbar. The rated short-time withstand current (Icw) can reach 50kA or 80kA (1s), depending on your project requirements and the components selected.
Q5：How do you manage heat dissipation in high-density GCS cabinets?
A: We use optimized ventilation paths and high-conductivity copper busbars with optional tin or silver plating. For high-load sections, we can integrate temperature-controlled cooling fans and real-time busbar temperature monitoring systems.
Q6：Can I specify the brand of the internal circuit breakers (ACBs/MCCBs)?
A: Yes. While we provide standard high-quality configurations, we fully support customer-specified brands such as Schneider (Masterpact/Compact), ABB (Emax/Tmax), or leading Chinese brands to ensure consistency with your existing local infrastructure.
Q7：Is the busbar system compatible with international standards?
A: Yes, our busbar designs comply with IEC 61439-1/2 standards. We use high-purity T2 copper, and the layout is designed to withstand the thermal and dynamic stresses of short-circuit events typical in industrial grids.
Q8：How do you ensure the interchangeability of the drawers?
A: Interchangeability is key for GCS. We use high-precision CNC machining and standardized tooling in our Shanxi factory to ensure that any drawer of the same size can be swapped seamlessly between different sections without adjustment.
Q9：What is the protection rating (IP) for your GCS switchgear?
A: The standard protection rating is IP30 or IP40 when the door is closed. For specific industrial environments, we can enhance the enclosure to IP42 while ensuring sufficient ventilation for the internal components.
Q10：How is the GCS switchgear packaged for long-distance sea freight?
A: Each vertical section is wrapped in moisture-proof plastic and secured in a heavy-duty reinforced plywood crate. We include desiccant packs and use shock-absorbing bases to ensure the high-precision internal mechanisms and meters remain intact during transit to your site.
