AC 380V 690V 1140V Fully Withdrawable GCK Switchgear LV Distribution Board

The GCK Series Multi-Voltage Switchgear is a high-performance power distribution solution designed for standard industrial applications (380V/400V) and specialized high-voltage low-voltage environments (690V and 1140V). This series is specifically engineered for industries requiring higher voltage levels to reduce line losses and motor start-up currents, such as underground mining, chemical processing, and large-scale water treatment.

The GCK architecture features a fully withdrawable (extraction) design, allowing for the rapid exchange of functional units without de-energizing the main busbar. With a focus on high insulation levels and superior breaking capacity, this cabinet ensures operational safety and power continuity in the most demanding electrical environments.

• Extended Voltage Range: Unlike standard panels, this GCK variant is built with enhanced creepage distances and insulation barriers to safely operate at 690V and 1140V AC.

• Fully Withdrawable Modular Units: Each motor starter or feeder unit is housed in a precision-engineered drawer. The "Plug-in" technology allows for Disconnected, Test, and Connected positions with mandatory mechanical safety interlocking.

• High-Purity T2 Copper Busbars: Features a robust horizontal and vertical busbar system, often silver-plated or tin-plated, to ensure maximum conductivity and resistance to oxidation in harsh industrial climates.

• Superior Fault Containment: Designed with a "Form 4" separation strategy, physically isolating the busbar, functional drawers, and cable compartments. This limits any potential internal arc fault to a single compartment.

• Rugged 8MF/C-Type Frame: The cabinet chassis is constructed from CNC-machined, high-strength cold-rolled steel, providing a stable platform for heavy-duty Air Circuit Breakers (ACBs).

1. Mining & Extraction: Optimized for 1140V underground mining equipment, reducing cable weight and increasing motor efficiency.

2. Petrochemical & Offshore: Reliable 690V distribution for large-scale pumps, compressors, and drilling rigs.

3. Water Treatment Facilities: Centralized control for high-capacity aeration blowers and pumping stations.

4. Heavy Manufacturing: Main distribution boards for steel mills, aluminum smelters, and cement plants.

• Optimized Dielectric Safety: We utilize specialized epoxy resin insulators and reinforced barriers to handle the increased electrical stress of 1140V systems.

• Smart Integration: Every panel can be equipped with intelligent protection relays and multifunctional meters with RS485/Modbus/Ethernet ports for seamless SCADA integration.

• Custom Engineering: Our team provides bespoke CAD layouts based on your facility's Single Line Diagram (SLD), ensuring cable entry and footprint match your site requirements perfectly.

• Factory Acceptance Testing (FAT): Every unit undergoes rigorous insulation resistance, power frequency withstand, and mechanical operation tests before global shipping.

Q: Why use 1140V instead of standard 400V?

A: In heavy industries like mining, 1140V allows for much longer cable runs with significantly lower voltage drops and smaller cable cross-sections, leading to substantial savings in copper costs and higher motor efficiency.

Q: Are the drawers compatible across different cabinets?

A: Yes, drawers of the same size and function are interchangeable within our GCK lineups, allowing you to maintain a small inventory of spare drawers for instant "hot-swap" repairs.

Q: Can these cabinets handle high-harmonic environments?

A: Absolutely. We can configure the cabinets with oversized neutral busbars and harmonic-filtered capacitor banks to ensure stability in facilities with high VFD (Variable Frequency Drive) usage.

GCK/GCS/MNS Low voltage extraction switchgear

GCK/GCS/MNS Low-voltage extraction switchgear complete set of switchgear is suitable for AC 50Hz, rated working voltage 380V low-voltage distribution system. It contains the functions of power center (PC) and motor control center (MCC), the technical parameters are up to the national standards, with beautiful appearance, high electrical performance, high protection level, safe and reliable,easy maintenance and other characteristics, is the metallurgy, petroleum, chemical, electric power, machinery, light textile and other industries low-voltage power supply system distribution device.

This product conforms to IEC-439, GB7251.1 standard.

The altitude does not exceed 2,000 meters above sea level.
1, the ambient air temperature is not higher than +40℃, not lower than -5℃, and the average temperature within 24 hours is not higher than +35℃.
2, atmospheric conditions: the air is clean, the relative humidity at the temperature of +40 DEG C is not more than 50%, the
temperature is low to allow a higher relative humidity, such as +20 DEG C is 90%.
3, no fire, explosion danger, serious pollution, chemical corrosion and violent vibration of the place.
4. Tilt with vertical plane not more than 5°.
5, the control center is suitable for the following temperature transport and storage process: -25℃ ~+55℃, in a short time (not more than 24h) not more than +70℃.