Description
GCK is a withdrawable low voltage assembly for distribution and motor control. Each functional unit sits in its own compartment and can be isolated, withdrawn and replaced without shutting down the board, which is why it is used where a process cannot stop.
Construction
- Compartmented structure: separate compartments for the busbar, the functional units and the cable termination.
- Withdrawable modules: fixed, test and disconnected positions with mechanical interlocking to the door.
- Busbar system: CWNE copper busbars with supports and partitions, sized for the incoming device.
- Devices: CWNE air circuit breakers, moulded case circuit breakers, miniature circuit breakers, isolators and fuses inside the same assembly.
Technical data
| Parameter | Typical value |
|---|---|
| Rated voltage | 400 / 690 V |
| Main busbar current | Up to 4000 A (typical configuration) |
| Short-time withstand current | 50 kA / 1 s (typical configuration) |
| Frequency | 50 / 60 Hz |
| Functional units | Distribution, motor starter (DOL, star-delta, soft start, VFD), compensation, metering |
| Form of separation | Up to form 4, agreed per project |
| Degree of protection | IP31 to IP54, agreed per project |
| Standards | IEC 61439-2, GB 7251 |
Ratings are typical for the standard configuration; the final values depend on the incoming device, the short-circuit level and the form of separation, and are confirmed on the approved drawings.
Typical applications
- Motor control centres for pumps, fans, conveyors and process lines
- Main and sub-main distribution boards in factories and infrastructure
- Boards that must stay in service while a single feeder is maintained
Ordering information
Send the single-line diagram, the load schedule with motor ratings and starting methods, the incoming current and short-circuit level, the required form of separation and IP rating, and the cable entry direction.
FAQ
What is the advantage of a withdrawable assembly?
A functional unit can be isolated, withdrawn and replaced without shutting down the whole board, which matters where the process cannot stop.
Which starters can be built into the drawers?
Direct-on-line, star-delta, soft starter and variable frequency drive starters, together with distribution and compensation units.
Are the devices inside the panel CWNE products?
Yes. Air circuit breakers, moulded case and miniature circuit breakers, isolators, fuses and the busbar system are CWNE products, so the bill of materials and spare parts stay with one supplier.
What form of separation can be supplied?
Up to form 4, agreed per project depending on the panel layout and the maintenance philosophy.
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