Low Voltage Switchgear

GCS Low Voltage Distribution Cabinet

Product Overview

Low Voltage Series

Product Overview
The GCS device is applicable to power distribution systems in industries such as power plants, petroleum, chemical, metallurgy, textiles, and high-rise buildings. In highly automated venues like large power plants and petrochemical systems requiring computer interfacing, it serves as a low-voltage switchgear assembly for power distribution, motor centralized control, and reactive power compensation in three-phase AC systems with 50 (60) Hz frequency, rated working voltage of 380V (400V)/(660V), and rated current up to 4000A.

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Features

● The frame is constructed with 8MF open-section steel, featuring Ф9.2mm mounting holes on the main structure with modular pitches of E=20mm and 100mm, enabling flexible and convenient assembly.

● The functional compartments of the switchgear are fully isolated, including the functional unit compartment, busbar compartment, and cable compartment, each serving independent roles.

● Horizontal busbars are arranged flat behind the cabinet to enhance their resistance to electrodynamic forces, a fundamental measure ensuring high short-circuit withstand capability in the main circuit.

● The cable compartment is designed for easy top/bottom cable entry/exit.

● Drawers are modular in height (160mm increments), with fixed width and depth dimensions. Drawers of the same functional unit are fully interchangeable, supporting rated currents up to 400A.

● Drawer panels clearly indicate positions (On/Off/Test/Withdrawn) and are equipped with mechanical interlock devices. The drawer units combine withdrawable and fixed functions, allowing flexible configuration.

● The cabinet’s protection rating is IP30/IP40 as standard, with custom options available upon request.

GCS Low Voltage Distribution Cabinet additional view 2

GCS Low Voltage Distribution Cabinet product detail and application view 1

GCS Low Voltage Distribution Cabinet product detail and application view 2

Operating conditions

● Ambient Air Temperature: -5°C to +40°C, with a 24-hour average ≤+35°C. Derating operation is required when exceeding this.

● Indoor Use: Altitude ≤2000m.

● Relative Humidity: ≤50% at +40°C; higher humidity is permitted at lower temperatures (e.g., 90% at +20°C), with consideration for condensation risks due to temperature variations.

● Installation Inclination: ≤5° from vertical, ensuring the panel lineup is level (complying with GBJ232-82).

● Environmental Requirements: Free from severe vibration, shock, and corrosive conditions that may damage electrical components.

Note: For applications exceeding the above conditions, please consult our company for customization.

Technical specifications

Items		Data
Rated voltage of the main circuit(V)		AC 380(400),(660)
Rated voltage of auxiliary circuit(V)		AC 220,380(400), DC 110, 220
Rated frequency(Hz)		50(60)
Rated insulation voltage(V)		660(1000)
Rated current(A)	Horizontal busbar	≤4000
	Vertical busbar(MCC)	1000
Rated short-time withstand current of busbar(kA,1s)		50,80
Rated peak withstand current of busbar(kA/0.1s)		105 ,176
Power frequency test voltage (V/1 min)	Main circuit	2500
	Auxiliary circuit	1760
Busbar	Three phase four wire	A.B.C.PE.N
	Three phase five wire	A.B.C.PE.N
Protection level		IP30, IP40

Note: The above data is subject to change due to technical improvement.

Configuration and document checks

The gallery shows a multi-panel low-voltage cabinet with front-access controls. The photographs do not establish the internal busbar arrangement, interchangeability of functional units, protection rating or short-circuit withstand capability of an ordered assembly.

Define the incoming and outgoing circuits, protective devices, control requirements, cable and busbar interfaces, installation space and site conditions. Confirm whether the proposed unit uses withdrawable modules from the actual configuration drawing.

Before technical approval, request the proposed single-line diagram, general-arrangement drawing, equipment list and test records for the offered configuration.

Product images

Additional Product Information

GCS low-voltage cabinet shown in product photos. Confirm the ordered unit configuration, circuit layout, ratings and test evidence from project documents.