As a high-performance complete low-voltage power distribution equipment, the GCS Low-Voltage Drawer-Type Switchgear is exclusively designed for three-phase AC power systems, enabling multiple functions including power distribution, centralized motor control and reactive power compensation. Manufactured in strict compliance with IEC439-1 Low-Voltage Switches and Controlgear and JB/T9661 Low-Voltage Drawer-Type Switchgear, it features rated performance and structural design tailored to the high requirements of industrial-grade power distribution, making it a core choice for low-voltage power distribution systems across various industries.
I. Core Product Positioning
This equipment is applicable to power generation and supply systems with a three-phase AC frequency of 50/60Hz, with a rated working voltage of 380V (400)/660V and a rated current of ≤4000A, and can be adapted to the selection of distribution transformers of 2500kVA and below. Equipped with a custom-designed capacitor compensation cabinet and reactor cabinet, the equipment can effectively meet the demands of power supply and power factor improvement, balancing power distribution efficiency with the cost-effectiveness of comprehensive investment.
II. Wide-Ranging Application Scenarios
With high reliability and adaptability to high automation, the product is widely used in industries and scenarios with stringent requirements for power distribution stability:
1. Power sector: Low-voltage power distribution systems of power plants and substations;
2. Heavy industry: Power distribution and motor control in petroleum, chemical, metallurgical and textile industries;
3. Civil and construction sector: Low-voltage power distribution systems of high-rise buildings;
4. High automation sector: Scenarios with high requirements for centralized control such as large-scale power plants and petrochemical systems.
III. Key Technical Parameters
| Parameter Category | Specific Indicators |
| Rated Voltage | Main circuit: AC 380(400)V, 660V; Auxiliary circuit: AC 220V, 380(400)V / DC110V, 220V; Insulation voltage: 660(1000)V |
| Rated Frequency | 50(60)Hz |
| Rated Current | Horizontal wiring ≤4000A; Vertical busbar (MCC) 1000A |
| Busbar Withstand Current | Short-time withstand: 50, 80kA/1s; Peak withstand: 105, 176kA/0.1s |
| Power Frequency Test Voltage | Main circuit 2500V/1min; Auxiliary circuit 1760V/1min |
| Protection Class | IP30, IP40 (optional) |
| Busbar System | Three-phase four-wire (A, B, C, PEN); Three-phase five-wire (A, B, C, PE, N) |
IV. Structural and Performance Advantages
1. Robust modular frame: The main frame is made of 8MF section steel with 20mm modular mounting holes, supporting two structures of assembly and partial welding. The cabinet dimensions are standardized to adapt to various installation scenarios.
2. Independent isolation of functional compartments: Functional unit room, busbar room and electrical system room are strictly divided, with each unit having independent functions, which prevents fault spread and improves operational safety.
3. Flexible drawer-type design: The drawer layer height is based on a 160mm module, and drawers of various specifications feature strong interchangeability. Equipped with mechanical interlocking devices and clear markings for open/close, test and withdraw positions, the equipment ensures safe operation and convenient maintenance. A single MCC cabinet can accommodate up to 22 unit drawers.
4. High-quality components and busbars: TMY-T2 series hard copper busbars are adopted throughout the equipment, with tinned connection parts; full-length tinned/silver-plated copper busbars are optional to enhance dynamic and thermal stability. Core electrical components are selected from technologically advanced domestic and imported adaptable models with strong versatility, supporting component upgrade and replacement.
5. Strong power distribution adaptability: The equipment can be flexibly combined with dry-type and oil-immersed transformers. The cable compartment has two optional widths of 240mm and 440mm, facilitating cable installation and maintenance. Meanwhile, a 24V weak current power supply is reserved to meet the interface requirements of automation and computer systems.
Featuring the core characteristics of high reliability, high flexibility and easy maintainability, the GCS Low-Voltage Drawer-Type Switchgear balances power distribution efficiency and operational safety. It can be flexibly configured according to the power distribution needs of different industries, providing stable and efficient hardware support for low-voltage power distribution systems in industrial production, high-rise buildings, power supply and other scenarios.
Post time: Mar-14-2026
