Low Voltage Switchgear
01
GCS Low Voltage Draw-Out Switchgear
Features
● The frame is constructed with 8MF open-section steel, featuring Ф9.2mm mounting holes on the main structure with modular pitches of E=20mm and 100mm, enabling flexible and convenient assembly.
● The functional compartments of the switchgear are fully isolated, including the functional unit compartment, busbar compartment, and cable compartment, each serving independent roles.
● Horizontal busbars are arranged flat behind the cabinet to enhance their resistance to electrodynamic forces, a fundamental measure ensuring high short-circuit withstand capability in the main circuit.
● The cable compartment is designed for easy top/bottom cable entry/exit.
● Drawers are modular in height (160mm increments), with fixed width and depth dimensions. Drawers of the same functional unit are fully interchangeable, supporting rated currents up to 400A.
● Drawer panels clearly indicate positions (On/Off/Test/Withdrawn) and are equipped with mechanical interlock devices. The drawer units combine withdrawable and fixed functions, allowing flexible configuration.
● The cabinet’s protection rating is IP30/IP40 as standard, with custom options available upon request.
Operating conditions
● Ambient Air Temperature: -5°C to +40°C, with a 24-hour average ≤+35°C. Derating operation is required when exceeding this.
● Indoor Use: Altitude ≤2000m.
● Relative Humidity: ≤50% at +40°C; higher humidity is permitted at lower temperatures (e.g., 90% at +20°C), with consideration for condensation risks due to temperature variations.
● Installation Inclination: ≤5° from vertical, ensuring the panel lineup is level (complying with GBJ232-82).
● Environmental Requirements: Free from severe vibration, shock, and corrosive conditions that may damage electrical components.
Note: For applications exceeding the above conditions, please consult our company for customization.
Technical specifications
|
Items |
Data |
|
| Rated voltage of the main circuit(V) |
AC 380(400),(660) |
|
| Rated voltage of auxiliary circuit(V) |
AC 220,380(400), DC 110, 220 |
|
| Rated frequency(Hz) |
50(60) |
|
| Rated insulation voltage(V) |
660(1000) |
|
| Rated current(A) | Horizontal busbar |
≤4000 |
| Vertical busbar(MCC) |
1000 |
|
| Rated short-time withstand current of busbar(kA,1s) |
50,80 |
|
| Rated peak withstand current of busbar(kA/0.1s) |
105 ,176 |
|
| Power frequency test voltage (V/1 min) | Main circuit |
2500 |
| Auxiliary circuit |
1760 |
|
| Busbar | Three phase four wire |
A.B.C.PE.N |
| Three phase five wire |
A.B.C.PE.N |
|
| Protection level |
IP30, IP40 |
|
Note: The above data is subject to change due to technical improvement.