Headquarters Address: No. 285, Jiujiang East Road, Chuzhou City, Anhui Province
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Product Series
PRODUCTS SERIES
Product Specifications:
Model Meaning
G : Enclosed switchgear; C : Pull-out structure; K : Motor Control Center (MCC) is widely used in plant and building low-voltage 400V systems, combining power distribution with centralized control of motor circuits. It is the mainstream low-voltage switchgear in industrial applications, conforming to the following standards: GB7251.1, JB/T9661, IEC60439 。
② Complete set of product technical specifications
Basic Electrical Parameters
Table
Parameter Item
|
Standard value
|
Explanation
|
Rated Insulation Voltage
|
660V (Standard)
|
Maximum voltage rating of the system
|
Rated operating voltage
|
AC 380 V/400 V, 660 V
|
Three-phase 50 Hz/60 Hz Industrial Low-Voltage Power Distribution
|
Horizontal main busbar current
|
630A to 4000A (commonly used: 1600/2000/2500/3200A)
|
Main incoming busbar for the entire cabinet
|
Vertical branch busbar current
|
630A, 800A, 1000A
|
Vertical power busbar for each cabinet
|
Maximum current of the drawer circuit
|
630A
|
Maximum number of drawer units per cabinet
|
Rated short-time withstand current (1 s)
|
30 kA/50 kA/80 kA (mainstream: 50 kA)
|
Busbar thermal stability
|
Rated peak withstand current
|
63kA/105kA/176kA
|
Short-circuit dynamic stability impact
|
Short-circuit breaking capacity of the drawer unit
|
≤50kA
|
Trip unit circuit breaker breaking performance indicators
|
Enclosure protection rating
|
IP30 (standard), optional IP40
|
Dust-proof and solid-object-proof for indoor switchgear rooms
|
Standard cabinet external dimensions
|
Width 800/1000 mm × Depth 800/1000 mm × Height 2200 mm
|
Modular 25 mm standard mounting hole pitch
|
Cabinet material
|
Galvanized steel sheet + exterior wall with electrostatic powder coating
|
Prefabricated weld-free frame, corrosion- and rust-resistant
|
Drawer position
|
Three-position mechanical interlock for connection, testing, and isolation
|
Maintenance Safety Isolation
|
Supporting and Environmental Parameters
- Auxiliary circuit power supply: AC220V/380V、 DC 110V/220V
- Operating environment: Temperature - 5℃ ~ +40℃ , altitude ≤2000m , non-corrosive, non-explosive gas
- Grounding system: three-phase four-wire, three-phase five-wire ( TN-S/TN-C-S ) General
Application scenarios:
- Industrial factory workshop MCC Motor Control Station Centralized start-up and shutdown, protection, and local/remote control of pumps, fans, compressors, belt conveyors, and production-line motors constitute the factory’s most critical applications.
- Substation and power plant low-voltage auxiliary power systems Power reception on the low-voltage side of the main transformer, along with the distribution of power for in‑plant lighting, cooling equipment, and oil pumps, demands high supply stability.
- Power distribution rooms in the basements of commercial complexes, hospitals, and data centers Building power distribution cabinets, fire pumps, smoke exhaust fans, central air-conditioning units, and emergency load distribution control.
- Chemical industry, metallurgy, mining, wastewater treatment plant Centralized management of multiple high‑power loads; drawer‑type modular design enables independent troubleshooting of faulty circuits without disrupting the overall power supply.
- Rail transit, port terminals, and large pumping stations Cluster control of high-power power equipment, with highly interchangeable drawers for quick on-site replacement and emergency repairs.
- Low-voltage grid-connection switchgear for photovoltaic and energy storage power stations Integrated use of AC-side collection, distribution, protection, and metering for inverters.
Product Advantages:
1. Three‑zone physical isolation ensures that failures do not propagate across zones.
The cabinet body is divided into Top busbar compartment, front drawer function compartment, rear cable compartment , A short-circuit fire in a single drawer will be confined to that compartment and will not propagate to other circuits, ensuring high safety redundancy.
2. Drawer‑type pull‑out design ensures exceptionally high efficiency in operations and emergency repairs.
The faulty circuit can be directly removed by pulling out the drawer to replace it with a spare unit, resulting in extremely short outage times; the drawer is equipped with… Work / Experiment / Isolation Three-position design; the test position allows verification of secondary signals without energizing, ensuring high maintenance safety. Drawers of the same specification are fully interchangeable, simplifying spare-parts management.
3. Enhance the mechanical interlock to prevent misoperations involving live‑line insertion and removal.
The drawer can be pulled out only when the circuit breaker is in the open position; the circuit breaker may be closed only after the drawer has been fully pushed into place. The cabinet door and the switch handle are mechanically interlocked, ensuring strict adherence to the operating procedure and preventing electric shock accidents.
4. Modular and standardized design, offering flexible configuration and easy scalability.
The cabinet body adheres to a standard 25 mm modular design, with drawers available in multiple sizes—1/4, 1/2, and 1 unit—to allow flexible configuration of circuits with varying power ratings. In the future, additional loads can be added by simply installing extra drawers, without requiring any modifications to the cabinet frame.
5. Prefabricated galvanized cabinet body, offering high strength, corrosion resistance, and long service life.
The structure is fully assembled with no welding-induced deformation; the inner and outer surfaces are made of galvanized base material and finished with powder coating, making it highly resistant to rust even in humid switchgear rooms. The overall service life can exceed 20 years.
6. Highly intelligent and adaptable, capable of integrating with measurement and control systems.
The drawer can be equipped with an intelligent meter, current‑sensing module, and communication interface, enabling integration with PLCs and substation monitoring systems to support remote telemetry, remote control, and fault alarms, thus facilitating smart‑factory applications and the modernization of intelligent substations.
Keywords: GCK
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Contact phone number:18755010350
Customer service hotline hours: 08:00-17:00
Service email:944017450@qq.com
Headquarters Address: No. 285, Jiujiang East Road, Chuzhou City, Anhui Province
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