GCK Low-voltage withdrawable switchgear
The GCk low-voltage withdrawable switchgear consists of two parts: the power distribution center (pC) cabinet and the motor control center(MCC).
Overview
The GCk low-voltage withdrawable switchgear consists of two parts: the power distribution center (PC) cabinet and the motor control center(MCC). It is suitable for power users such as power plants, substations, and industrial and mining enterprises in AC 50Hz distribution systemswith a maximum working voltage of 660V and a maximum working current of 3150A. 1t is used for power distribution, motor control, and lightingdistribution equipment for power conversion, distribution, and control.
Model Meaning

Terms of Use
▪ Altitude does not exceed 2000m:
▪ Ambient air temperature does not exceed +40'c , and the average temperature over 24 hours does not exceed +35'c ; ambient air temperaturedoes not fall below -50°C;
▪ Atmospheric conditions: clean al, relative humidity does not exced 50% at +40'c,and higher relative humidityis permited at lower temperatures,e.g. 90% at +20'c;
▪ No risk of fire, explosion, severe contamination, chemical corrosion, or severe vibration;
▪ Inclination from the vertical plane does not exceed 5 :
▪ This produc is suitable for transportation and storage at temperatures ranging from -25'c to +55'c, and can withstand temperatures up to +70'c for short periods (not exceeding 24 hours).
Note: fthe above conditions of use cannot be met, the user should raise the issue with the manufacturer at the time of ordering and negotiate a solution.
Main Technical Parameters
| Item | Argument | |
| Rated operating frequency | 50 | |
| Rated operating voltage(V) | 380,660 | |
| Rated insulation voltage(V) | 660 | |
| Rated operating current(A) | Horizontal bus | 630-3150 |
| Vertical busbar | 600 | |
| Rated short-time withstand current | Horizontal bus | 80kA(valid value)/1 second |
| Vertical busbar | 50kA(valid value)/1second | |
| Rated peak withstand current | Horizontal bus | 176kA/0.1s |
| Vertical busbar | 110kA/0.1s | |
| Main circuit connector(A) | 200,400 | |
| Auxiliary circuit connector(A) | 10 | |
| Power frequency withstand voltage1 min(V) | 2500 | |
| Class of protection | IP40 | |
| Mode of operation | In situ,far away,automatic | |








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