GCK Low-Voltage Withdrawable Switchgear
Category:
Product Description
Product Overview
The GCK low-voltage withdrawable switchgear (hereinafter referred to as the switchgear) is suitable for control and distribution systems operating at 50 (60) Hz AC with a rated working voltage of 660 V or lower. It consists of two main components: the Power Control Center (PC) cabinet and the Motor Control Center (MCC). It serves as distribution equipment for power distribution, motor control, and lighting applications.
It boasts high breaking capacity, excellent dynamic and thermal stability, an advanced and well‑balanced structure, flexible electrical configurations, strong series compatibility and versatility, the ability to freely combine various modular units, a large number of circuits that can be accommodated within a single switchgear cabinet, space-saving design, a high degree of protection, and convenient maintenance. This product is widely used in power plants, substations, metallurgical facilities, textile mills, petrochemical plants, industrial and mining enterprises, and high‑rise buildings.
Product Model and Meaning
Operating Environment
1. Ambient air temperature: -5°C to +40°C, with an average temperature of ≤+35°C over a 24-hour period.
2. For indoor installation and use, the altitude of the installation location must be ≤ 2000 m.
3. Air cleanliness: At a high temperature of +40°C, the relative humidity should be ≤50%; at lower temperatures, a higher relative humidity is permissible. For example, at +20°C, the relative humidity can reach 90%, but considering temperature fluctuations, moderate condensation may occasionally occur.
4. During installation, the tilt angle relative to the vertical plane should be ≤5°.
5. The device is designed to withstand transportation and storage under the following temperature conditions: a range between -25°C and +55°C, with short-term exposure (≤24 hours) up to 70°C. Under these temperatures, the device should not sustain any irreversible damage and must continue to operate normally under standard conditions.
6. The equipment should be installed in a location free from severe vibration and impact, as well as in an environment where electrical components are not subject to corrosive conditions. Note: If the operating environment exceeds the above‑mentioned standard conditions, consultation with the manufacturer is required.
Main Structural Features
This device is an interval-type switching apparatus that adopts a modular design. All structural components of the cabinet frame are galvanized and powder-coated, then securely fastened together with screws to form the basic cabinet frame. Depending on requirements, doors, baffles, partitions, drawers, mounting brackets, busbars, and electrical components are added to assemble a complete control center cabinet. Structurally, it can be divided into three main parts: the cabinet body, the busbar system, and the functional units.
This device is designed for both three-phase four-wire and three-phase five-wire power distribution systems. The protective earth busbar PE is installed on the lower side of the cabinet, with outgoing lines connected via busbars to facilitate convenient cable connections for users. To ensure reliable and continuous grounding, all common components within the cabinet—such as drawer rails—are galvanized. While maintaining the enclosure’s protection rating, a natural ventilation grille is provided on the top of the switchgear. The compact structure allows for the installation of a greater number of functional units within a smaller footprint, thereby reducing user investment.
1. The structure boasts strong versatility. The cabinet body is assembled using a modular design based on C‑channel profiles (E=25mm), allowing for flexible and adaptable assembly.
2. Various sizes of pull-out units can be combined freely to meet the system’s design requirements.
3. The vertical busbars and outgoing lines are equipped with robust insulation protection, ensuring reliable maintenance behind the switchgear.
4. Design a mechanical locking mechanism with indicators for the operating, test, and withdrawal positions, ensuring reliable operation.
5. The drawer push‑pull mechanism uses rolling bearings, ensuring flexible and convenient drawer operation with high interchangeability among drawers of the same specifications.
6. The design features strong configurability, allowing for flexible combinations of pull-out display solutions and fixed partition solutions to meet the needs of various settings.
Main Technical Parameters
|
Serial Number |
Parameter Name |
Unit |
Parameters |
|
1 |
Rated operating voltage |
V |
AC 380V AC 660V |
|
2 |
Rated Insulation Voltage |
V |
AC 660 V AC 1000 V |
|
3 |
Busbar Current |
A |
4000A |
|
4 |
Vertical busbar current |
A |
1500A |
|
5 |
Rated Frequency |
Hz |
50 60Hz |
|
6 |
Peak Withstand Current of Horizontal Busbar (0.1 s) |
kA |
105kA 176kA |
|
7 |
Short-time withstand current of the busbar (1 s) |
kA |
50kA 80kA |
|
8 |
Peak withstand current of the vertical busbar (0.1 s) |
kA |
105kA |
|
9 |
Short-time withstand current of the vertical busbar (1 s) |
kA |
50kA |
|
10 |
Rated Power Frequency Withstand Voltage (1 min) |
V |
2500V |
|
11 |
Enclosure protection rating |
|
IP30 IP40 |
|
12 |
External dimensions (height × width × depth) |
m.m |
2200*600(800, 1000)*800(1000) |
Ordering Instructions
1. Main Circuit System Diagram;
2. Auxiliary Circuit Electrical Schematic;
3. List of Components Inside the Cabinet (including component model, name, specifications, and quantity);
4. Layout drawing of switchgear;
5. Cabinet color (unless otherwise specified, products will be supplied according to the company’s standard);
6. List of Required Spare Parts and Components;
7. Other Terms of Use
Keywords:
GCK Low-Voltage Withdrawable Switchgear
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East of the 22nd Avenue and south of Fengda Road, Zhengzhou Economic and Technological Development Zone
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