GGD‑type Low‑voltage Fixed Complete Switchgear is widely used in AC 50 Hz, 400 V rated‑voltage distribution systems for power consumers such as power plants, substations, industrial and mining enterprises, serving for power conversion, distribution and control of power, lighting and distribution equipment.
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Product OverviewGGD‑type Low‑voltage Fixed Complete Switchgear is widely used in AC 50 Hz, 400 V rated‑voltage distribution systems for power consumers such as power plants, substations, industrial and mining enterprises, serving for power conversion, distribution and control of power, lighting and distribution equipment.
GGD‑type low‑voltage distribution cabinet is characterized by high breaking capacity, good dynamic and thermal stability, novel and reasonable structure, practical electrical schemes, sound serial performance, strong applicability and high protection degree, which can be used as upgraded‑generation products.
This product complies with IEC60439 《Low‑voltage Switchgear and Controlgear Assemblies》, GB7251.1 《Low‑voltage Switchgear and Controlgear Assemblies — Part 1: General Rules》, GB7251.12 《Low‑voltage Switchgear and Controlgear Assemblies — Part 2: Power Switchgear and Controlgear Assemblies》 and other standards.
Technical Parameters
| Project Name | Unit | Technical Parameters |
| Rated Frequency | HZ | 50 |
| Rated Voltage | V | 380 |
| Rated Insulation Voltage | V | 660 |
Rated Current | A | ≤2500 |
| Rated Short-time Withstand Current | KA | 50 |
| Power Frequency Withstand Voltage | V/1min | 1890 |
| Protection Rating | IP30 |
* All products are custom‑made, and parameters are for reference only.
Normal Use ConditionAmbient air temperature: not higher than +40°C, not lower than ‑5°C, and the average temperature within 24 h shall not exceed +35°C.
Atmospheric conditions: clean air. Relative humidity shall not exceed 50% at maximum temperature of +40°C. Higher relative humidity is permitted at lower temperatures, e.g. 90% at +20°C. Moderate condensation may occasionally occur due to temperature variation.
Altitude: ≤2000 m.
For transportation and storage, the product is applicable within the temperature range of ‑25°C ~ +55°C; it can reach +70°C for a short‑term period (no more than 24 h). Under these limit temperatures, the equipment shall not suffer any irreversible damage and shall operate normally under service conditions.
If the above service conditions cannot be satisfied, the user shall notify the manufacturer at the time of order placement for negotiation.
Product FeaturesBreaking through the structural form of legacy products, the GGD cabinet adopts a combined‑assembled basic frame. All structural components of the frame are firmly connected by screws. The frame, doors and face panels are phosphated and then coated with polyester orange‑peel finish; non‑sprayed components are fully galvanized and passivated. The enclosure protection degree is IP30, and options ranging from IP20 to IP40 are available per customers’ installation‑site requirements. The cabinet is designed with an efficient natural ventilation system.
GGD supports conventional upper‑side and lower‑side incoming‑cable modes. Incoming‑cable access from cabinet top, left, middle and right sides is also available to satisfy diverse incoming‑cable requirements of various engineering designs. Fixed mounting positions are reserved inside the cabinet for power plants and other special users to install relay protection and automatic devices.
GGD cabinet features high breaking capacity, excellent dynamic and thermal stability, and flexible and convenient combination of electrical schemes.
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