Distribution box GGD type dimensions

Exact dimensions of GGD distribution boxes vary by model and manufacturer; typical cabinets are modular and customizable to project requirements.

Overview

GGD-type AC low-voltage distribution cabinets are designed for power plants, substations, industrial and mining enterprises, and other AC 50Hz power consumers. They operate at a rated voltage of 380V and a rated current up to 3150A–5000A, depending on the model . These cabinets are used for power conversion, distribution, and control of lighting and electrical equipment, and they comply with standards such as IEC 439 and GB 7251 .

Structural Features

• The cabinet body is modular, typically assembled from cold-formed steel sections with a universal frame design, allowing flexible combination and serialization .
• Cabinets include core functional compartments for circuit breakers and contactors, metering compartments for energy meters, and transformer compartments for current and voltage transformers .
• Cable entry can be from the top, bottom, left, right, or rear, depending on installation requirements .
• The design emphasizes high breaking capacity, thermal and dynamic stability, and high protection levels, often rated IP55 for dust and water resistance .

Typical Dimensions and Customization

While exact dimensions are not standardized across all manufacturers, GGD cabinets are modular and customizable. The height, width, and depth can be adjusted based on:

• Rated current and number of modules required
• Number of compartments for breakers, meters, and transformers
• Installation environment and space constraints For example, a single-module GGD cabinet may have a width of 400–600 mm, depth of 250–600 mm, and height ranging from 1800–2200 mm, but these values vary by manufacturer and project specifications. Multi-module or high-current cabinets will be larger and can be combined in series to meet specific power distribution needs.

Installation Considerations

• Indoor installation with ambient temperature -5°C to +40°C and altitude ≤2000 m
• Relative humidity ≤50% at 40°C, higher humidity allowed at lower temperatures
• Cabinets should be installed on a level surface with minimal vibration and corrosion risk For precise dimensions, it is recommended to consult the manufacturer's datasheet or request a custom drawing based on the required rated current, module count, and compartment configuration.