1. Product Overview
The GCS Low Voltage Withdrawable Switchgear is an advanced power distribution system designed to meet the demands of industrial automation, power plants, substations, and commercial facilities. Compliant with IEC 439-1, GB 7251, and ZBK 36001 standards, it offers modular design, high safety, and flexible configuration, making it a preferred choice for power distribution and control applications.
2. Performance Standards
The GCS switchgear adheres to international and national industry standards:
✔ IEC 439-1 – Low-voltage switchgear and controlgear
✔ GB 7251 – Low-voltage switchgear
✔ ZBK 36001 – Low-voltage withdrawable switchgear
Key Technical Specifications
| Specification | Value |
|---|---|
| Main Circuit Rated Voltage | AC 380V (400V, 660V) |
| Auxiliary Circuit Rated Voltage | AC 220V, 380V (400V), DC 110V, 220V |
| Rated Frequency | 50Hz (60Hz) |
| Rated Insulation Voltage | 660V (1000V) |
| Rated Current | Horizontal Busbar ≤ 4000A / Vertical Busbar 1000A |
| Short-Time Withstand Current (1s) | 50kA, 80kA |
| Peak Withstand Current (kA) | 105kA, 176kA |
| Power Frequency Withstand Voltage (V/min) | Main Circuit 2500V / Auxiliary Circuit 1760V |
| Busbar System | Three-phase four-wire / Three-phase five-wire |
| Protection Level | IP30, IP40 |
3. Key Features
The GCS switchgear provides enhanced reliability, safety, and flexibility, making it ideal for demanding industrial power distribution systems.
3.1 Optimized Thermal Performance
✔ Efficient heat dissipation through optimized busbar layout, reducing temperature rise on connectors, terminals, and cable heads.
3.2 Independent Compartmentalization
✔ Functional units are physically separated, ensuring that faults in one unit do not affect other components, improving system reliability.
3.3 Superior Short-Circuit Withstand Capacity
✔ The horizontal busbar design enhances dynamic thermal stability, allowing the switchgear to withstand short-circuit impacts up to 176kA.
3.4 Modular and Scalable Design
✔ Each MCC (Motor Control Center) cabinet can accommodate up to 22 independent circuits, supporting large-scale industrial operations.
3.5 Flexible Cable Entry Options
✔ Supports top, bottom, front, or rear cable entry, making installation and maintenance more convenient.
3.6 Advanced Fault Protection System
✔ Equipped with current-limiting reactors that stabilize bus voltage and mitigate short-circuit current surges, improving overall system protection.
3.7 High-Density Withdrawable Units
✔ Designed with 32 pairs (or 20 pairs) of secondary plugs, ensuring seamless integration with automation and control systems.
4. Auxiliary Circuit Design
The auxiliary circuit is designed following the Technical Provisions for Electricity Used in Thermal Power Plants, ensuring compatibility with power substations, industrial plants, and data centers.
This system provides modular power inlet units, feeder units, and MCC (Motor Feeder) operational modules, allowing for precise power control and efficient distribution.
5. Installation Guidelines
Below is the standard dimension chart and installation schematic for GCS switchgear cabinets.
Standard Cabinet Dimensions
| Cabinet Model | A (mm) | B (mm) | C (mm) | D (mm) | Description |
|---|---|---|---|---|---|
| GCS-TG1010-4 | 1000 | 1000 | 850 | 956 | Contact Cabinet |
| GCS-TG0810-4 | 800 | 1000 | 650 | 956 | Incoming Cabinet |
| GCS-TG1008-4 | 800 | 800 | 650 | 756 | Incoming Cabinet |
| GCS-TG0608-4 | 600 | 800 | 450 | 756 | Incoming Cabinet |
📌 Installation Considerations
- Minimum clearance of 800mm should be reserved for cable trenches to ensure proper cable layout.
- Maintain at least 1800mm clearance between the top of the cabinet and the ceiling for ventilation.
- Use a V-shaped reinforced concrete foundation for enhanced structural integrity.
6. Applications
The GCS switchgear is extensively used in power distribution systems for various industrial and commercial applications, including:
✔ Power generation plants, substations, and data centers
✔ Rail transit systems, airports, hospitals, and commercial buildings
✔ Petrochemical, steel, and manufacturing industries
✔ Renewable energy integration (wind power, solar PV systems)
Due to its modular architecture, high safety standards, and reliable performance, the GCS switchgear remains the preferred choice for mission-critical power distribution systems.
7. Conclusion
The GCS Low Voltage Withdrawable Switchgear offers high reliability, scalability, and enhanced safety for industrial power distribution. Designed for modern automated systems, it meets the highest standards in terms of performance, efficiency, and flexibility.
📩 Contact Us: [email protected]
📞 Phone Consultation: +86-18968823915