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A low-voltage withdrawable switchgear for power conversion, distribution and motor control center applications.
Designed for electrical distribution systems that require stable operation, clear circuit protection, and practical installation for industrial, commercial, utility, and infrastructure projects.
Dongfang Electric Power (Shandong) Co., Ltd. supports product selection by voltage level, rated current, installation environment, cabinet structure, cable connection method, and project documentation needs.
GCS Type Low Voltage Withdrawable Switchgear
Product Application
The GCS low-voltage withdrawable switchgear is suitable for low-voltage distribution systems in power plants, substations, petrochemical departments, factories and mining enterprises, and high-rise buildings. It is used as a power center, distribution center and motor control center for power conversion, distribution and control, including electric capacitor compensation.
For low-voltage power control centers and motor control centers in large single-unit power plants and large petrochemical industries, it can meet special computer-interface requirements. The product was developed to meet the requirements of power authorities, broad power users and design institutes, and to satisfy market needs such as increased capacity, computer interface, centralized power control, convenient installation and shortened accident treatment time. It follows safety, economy, rationality and reliability principles, with high breaking and making capacity, good dynamic and thermal stability, flexible electrical schemes, convenient combination, novel structure and high protection grade. It can be used as a replacement product for low-voltage withdrawable switchgear and complies with IEC439-1, GB7251 and ZBK36001 standards.
Model Meaning
| G | Enclosed switchgear |
|---|---|
| C | Withdrawable type |
| S | Sen-Yuan electrical system |
| Main / Auxiliary Scheme | Main circuit scheme number and auxiliary circuit scheme number |
Use Environment Conditions
Main Technical Parameters
| 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 | 600V (1000V) |
| Rated Current | Horizontal busbar: 4000A; vertical busbar (MCC): 1000A |
| Busbar Rated Short-Time Withstand Current | 50kA or 80kA / 1s |
| Busbar Rated Peak Withstand Current | 105kA or 176kA / 0.1s |
| Power-Frequency Test Voltage | Main circuit 2500V/min; auxiliary circuit 1760V/min |
| Busbar System | Three-phase four-wire or three-phase five-wire: A, B, C, PEN |
| Protection Grade | IP30, IP40 |
Products are selected for reliable distribution, protection, switching, and control in practical power systems.
Equipment can be matched to voltage level, capacity, cabinet structure, cable entry, and installation environment.
Technical documents, drawings, labels, packing, and delivery requirements can be coordinated for project use.

Dongfang Electric Power (Shandong) Co., Ltd. focuses on project-oriented power distribution equipment, including distribution boxes, distribution cabinets, withdrawable switchgear, ring main units, cable branch boxes, compensation cabinets, metering systems, busway systems, and power cables.
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