Overall Structure & Material Advantages

The GCK withdrawable switchgear features a bolt-assembled C-shaped steel frame instead of an integral welded structure. The internal frame undergoes hot-dip galvanizing treatment for superior rust resistance, while the outer cabinet surface is finished with electrostatic plastic spraying, delivering long-lasting resistance against corrosion, scratches and aging to adapt to harsh industrial operating environments. Metal partition plates divide the cabinet into four fully independent compartments: top horizontal busbar compartment, vertical busbar compartment, cable wiring compartment and drawer unit compartment. This isolated layout effectively restricts fault arcs and short-circuit faults from spreading to other circuits, significantly lifting overall system operational safety. The entire cabinet achieves IP40 protection class, blocking large particle dust and preventing accidental contact with live conductive components by operators.

Drawer Unit & Safety Interlock Performance

All drawer functional units are fully interchangeable, featuring three standard mechanical positions: separation position, test position and working position. Each drawer is fitted with a mandatory mechanical interlock mechanism. The drawer door is locked and cannot be opened when the main circuit breaker is closed; the main circuit will automatically cut off once the drawer is pulled to the separation position. This foolproof design thoroughly eliminates electric shock risks during inspection and maintenance. Drawer modules of various specifications can be freely combined based on actual load power, covering small motor control loops and large-capacity outgoing feeder circuits. Faulty drawers can be replaced with spare units in minutes, drastically reducing system downtime and production losses.

Complete Electrical Performance & Standard Compliance

This equipment applies to AC 50/60Hz three-phase 4-wire or 5-wire power distribution systems, with a rated operational voltage up to 660V and a maximum rated current of 4000A for the horizontal main busbar. It fully complies with international standard IEC 60439 and national standard GB 7251, possessing stable short-circuit withstand capability. Customers are allowed flexible configuration of internal components, including air circuit breakers, AC contactors, thermal overload relays, soft starters, energy meters, reactive power compensation capacitors and intelligent monitoring instruments. Reserved RS485 communication interfaces support remote data acquisition, signal feedback and automatic power distribution management, enabling intelligent digital power control for modern industrial workshops.

Wide Application Scenarios

As core power distribution and motor control equipment across all industries, the GCK low voltage withdrawable switchgear is extensively deployed in thermal power plants, urban distribution substations, metallurgical plants, petrochemical workshops, mining yards, textile factories, municipal sewage treatment plants, large commercial plazas, high-rise residential complexes, airports, container terminals, wind power and photovoltaic new energy stations. It undertakes critical functions including power incoming reception, branch power distribution, centralized motor start-stop control, energy metering, lighting power supply and power factor correction. Thanks to its compact structure, high safety level and convenient maintenance, it has become the mainstream low-voltage switchgear solution for medium-to-large industrial and infrastructure projects worldwide.