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Ggd Low Voltage Switchgear
The Usune GGD Low Voltage Switchgear is a high-performance AC switchgear designed for 50Hz, 380V systems with a rated current of up to 3150A. Designed with safety, economy, and reliability in mind, it is widely used in power plants, substations, factories, and commercial buildings. Manufactured in China by a professional manufacturer, as a reliable supplier, our switchgear features high breaking capacity, excellent thermal stability, and flexible configuration. Compliant with IEC and GB standards, it enables efficient power conversion, distribution, and control. Leveraging its strong manufacturing facilities, Usune provides reliable and easy-to-maintain power distribution solutions to users worldwide.
The Usune GGD Low Voltage Switchgear is a fixed switchgear primarily used for power reception, distribution, and control in low-voltage systems. Optimized for indoor applications, it is suitable for power plants, substations, industrial and mining enterprises, and high-rise buildings, and can handle loads up to 3150A.
- Rated Voltage: 0.4kV (380V)
- Rated Frequency: 50Hz
- Protection Rating: IP23
- Standards: IEC 439, GB 7251, GB/T 14048.2
- Certifications: ISO 9001 Management System Certification
Low voltage switchgear
Medium voltage switchgear
Structural Design
1. Cabinet Frame: Constructed from cold-rolled steel plate with a thickness ≥2mm, in RAL7032 electrical gray,
possessing high mechanical strength.
2. Protection Performance: IP23 protection rating, effectively preventing intrusion of solid foreign objects and
water splashes.
3. Interlocking Device: The GGD Low Voltage Switchgear incorporates a mechanical and electrical interlocking
mechanism, effectively preventing misoperation and ensuring operational safety.
4. Core Components: Equipped with high-quality circuit breakers, anti-interference LED indicators, and precision
pointer-type instruments.
Key Performance Advantages
1. High Breaking Capacity: Breaking capacity up to 50kA, ensuring stable operation of the equipment under fault
conditions.
2. Excellent Stability: Exhibits excellent dynamic and thermal stability, suitable for heavy-duty industrial
applications.
3. Flexible Configuration: Modular design allows for customized configuration based on power, lighting, and motor
control requirements.
4. Convenient Maintenance: Components are logically laid out, clearly labeled, and the cabinet doors are durable,
facilitating daily inspection and maintenance.
5. Strong Environmental Adaptability: Operating temperature range is -10℃ to +40℃, suitable for environments with
altitudes ≤1000m.
Technical Specifications
| Parameter Name | Specific Parameters |
| Model | GGD Series |
| Rated Voltage | 0.4kV (380V) |
| Rated Current | Max 3150A |
| Frequency | 50Hz |
| Protection Level | IP23 |
| Material | Cold-rolled Steel (≥2mm) |
| Color | RAL7032 (Electrical Gray) |
| Applicable Standards | IEC 439, GB 7251, GB/T 14048.2 |
| Altitude | ≤1000m |
| Temperature Range | -10℃ ~ +40℃ |
| Humidity | Daily Average ≤95% |
| Pollution Level | Level 3 |
| Seismic Intensity | ≤Magnitude 8 |
| Item | Unit | Parameter | |
| Rated voltage | kV | 24 | |
| Rated frequency | Hz | 50 | |
| Rated current of circuit breaker | A | 630, 1250, 1600, 2000, 2500, 3150, 4000 | |
| Rated current of switch cabinet | A | 630, 1250, 1600, 2000, 2500, 3150, 4000 | |
| Rated dynamic current (4s) | kA | 16, 20, 25, 31.5, 40, 50 | |
| Rated steady current (peak) | kA | 40, 50, 63, 80, 100, 125 | |
| Rated short circuit breaking current | kA | 16, 20, 25, 31.5, 40, 50 | |
| Rated short circuit making current | kA | 40, 50, 63, 80, 100, 125 | |
| 1min power frequency withstand voltage | Pole-pole, pole-earth | kV | 65 |
| Across isolating distance | kV | 79 | |
| Lightning impulse withstand voltage (peak) | Pole-pole, pole-earth | kV | 125 |
| Across isolating distance | kV | 145 | |
| Protection level | IP4X for enclosure, IP2X for isolating room and circuit breaker room open | ||
| Note: short-circuit capacity of CT should be considered separately. | |||
Real-world Application Cases
1. Project Name: Power Distribution System Upgrade for a Coal Mine
2. Client: A large coal mining group in Shanxi, China
3. Project Challenges: Harsh underground environment with high dust and vibration levels, requiring a stable and reliable power supply for conveyors, pumps, and ventilation equipment.
4. Solution: Deployment of 18 Usune GGD Low Voltage Switchgear units for main power distribution and zoned power distribution.
5. Project Results:
- Reliability: Stable operation for 24 consecutive months without any unplanned downtime.
- Safety: IP23 protection rating and robust interlocking devices completely eliminate electrical safety accidents.
- Efficiency Improvement: Stable power supply reduces equipment failure rate by 65%.
- Maintenance Optimization: Easy-access component design reduces maintenance time by 50%.
Product External Dimension
| Product code | A | B | C | D |
| GGD06 | 600 | 600 | 450 | 556 |
| GGD06A | 600 | 800 | 450 | 756 |
| GGD08 | 800 | 600 | 650 | 556 |
| GGD08A | 800 | 800 | 650 | 756 |
| GGD10A | 1000 | 600 | 850 | 556 |
| GGD10A | 1000 | 800 | 850 | 756 |
| GGD12 | 1200 | 800 | 1050 | 756 |
Project Reference
Cas-space Rocket Launch Project
Test Report
FAQ
Q1: What is the maximum operating altitude of the Usune GGD Low Voltage Switchgear?
A: The standard design is suitable for altitudes ≤1000m. Versions suitable for altitudes up to 2000m can be customized upon manufacturer confirmation.
Q2: Can the GGD switchgear be used in outdoor or corrosive environments?
A: This product is designed for indoor use (suitable for Level 3 pollution environments). For outdoor or highly corrosive applications, contact Usune for customized coatings or upgraded protection ratings.
Q3: What standards does the GGD switchgear comply with?
A: The product complies with IEC 439, GB 7251, GB/T 14048.2, and ISO management system standards. In case of conflicting standards, the higher standard will be prioritized.
In conclusion, the Usune GGD Low Voltage Switchgear is a high-performance, highly reliable power distribution solution. As a leading manufacturer and supplier in China, Usune integrates advanced design concepts, rigorous quality control, and extensive industry experience, leveraging its modern production facilities to provide safe, efficient, and durable power distribution products and services for various scenarios worldwide, including power plants, industrial facilities, and commercial buildings.
Hot Tags: Ggd Low Voltage Switchgear Supplier, GGD Switchgear Cabinet, Custom Power Distribution Equipment
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No. 298, Wei 17th Road, Yueqing Economic Development Zone, Yueqing, Wenzhou City, Zhejiang Province, China
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