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Low voltage draw-out switchgear complete switchgear

Low voltage draw-out switchgear complete switchgear

Overviwe GCK LV withdrawable switchgear cabinets applic […]



GCK LV withdrawable switchgear cabinets applicable to the low voltage distribution system with AC50Hz, rated working voltage 380V. It contains power center (PC) and motor control center (MCC)functions. Each technical parameter all reaches national standards. With characteristics of advanced structure, beautiful appearance, high electric performance, high protection grade, reliable and safe and easy to maintain.

It is the ideal distribution device for low voltage power supply system in metallurgy, petroleum, chemical, power, machinery and light weaving industries etc.

Main Feature

1.GCK1 and GCJI are assemble type combined structure. The basic skeleton is assembled by adopting special bar steel.

2.Cabinet skeleton, component dimension and starter size change according to basic modulus E=25mm.

3.In MCC project, parts in cabinet are divided into five zones (compartment): horizontal bus bar zone, vertical bus bar zone, function unit zone, cable compartment, and neutral earthing bus bar zone. Each zone is separated mutually for circuit’s normal running and effectively preventing fault expansion.

4.As all structures of framework are connected and firmed by bolts, so it avoids the welding distortion and

stress, and upgrades the precision.

5.Strong general performance, well applicability and high standardization degree for components.

6.Draw-out and insert of function unit (drawer) is lever operation, which is easy and reliable with rolling bearing.

Use environmental conditions

1. Altitude above sea level should not exceed 2000M.

2. Ambient air temperature: -5℃~+40℃ and the average temperature≤+35℃ in 24h.

3. Air condition: With clean air. Relative humidity should not exceed 50% at +40℃. Higher relative humidity is allowed at lower temperature. Ex. 90% at +20℃.

4. Places without fire, explosive danger, serious pollution, chemical corrosion and fierce vibration.

5. Installation gradient should not exceed 5°.

6. Control center is suitable to the transportation and store with following temperature :-25℃~+55″C,in short time (within 24h) it should not exceed +70℃


The product accords with standards I EC-439, GB7251.1.

Name Unit Value
Rated voltage of main circuit V AC380,400,660
Rated voltage of auxiliary circuit V AC 220, 380, 400 DC 110, 220
Rated frequency HZ 50,60
Rated insulation voltage V 660, 1000
Horizontal bus Rate Current A ≤4000
Vertical bus Rate Current A 1000
Busbar rated short-time withstand current KA/1s 50, 80
Rated peak withstand current of busbar KA/0.1s 105, 176
Degree of protection IP30, IP40


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