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GGD/GBD Type Low Voltage Solid Switchgear
GGD/GBD Type Low Voltage Solid Switchgear
GGD/GBD Type Low Voltage Solid Switchgear
GGD/GBD Type Low Voltage Solid Switchgear
Specifications
GBD1/GGD1 Rated Short-Circuit Breaking Current (kA) :
15
GBD2/GGD2 Rated Short-Circuit Breaking Current (kA) :
30
GBD3/GGD3 Rated Short-Time Withstand Current (kA) :
50
Model Number :
GGD/GBD
GBD3/GGD3 Rated Short-Circuit Breaking Current (kA) :
50
GBD1/GGD1 Rated Peak Withstand Current (kA) :
30
GBD2/GGD2 Rated Short-Time Withstand Current (kA) :
30
GBD3/GGD3 Rated Peak Withstand Current (kA) :
105
Rated Voltage (V) :
380
GBD2/GGD2 Rated Peak Withstand Current (kA) :
63
GBD1/GGD1 Rated Short-Time Withstand Current (kA) :
15
Place of Origin :
China
Description
GGD & GBD Low-Voltage Fixed Switchgear

Rated Voltage: 380V | Rated Current: up to 3150A | Frequency: 50Hz
Complies with GB/T 7251.1 & IEC 61439 (formerly IEC 439)

Overview

The GGD & GBD series are fixed-type low-voltage switchgear assemblies designed for electric energy conversion, distribution, control, and management in:

  • Power plants and substations
  • Industrial and mining enterprises
  • Commercial and infrastructure power users

They are suitable for 50Hz AC systems with a rated operating voltage of 380V and a rated operating current up to 3150A. The series was developed in close cooperation with power supply authorities, design institutes, and end users to ensure safe, economical, and reliable operation with strong breaking capacity and excellent dynamic & thermal stability.

Key Technical Features
Feature Description
High breaking capacity Safely interrupts fault currents, suitable for power and lighting distribution
Dynamic & thermal stability Withstands short-circuit stresses without damage
Flexible electrical schemes Adaptable to various load types (motors, lighting, distribution equipment)
Convenient combination Functional units can be combined flexibly within the same cabinet
Complete series specifications Wide current range covering most low-voltage applications
Novel structure Optimized for ease of installation, wiring, and maintenance
High protection degree IP30 / IP40 (selectable) – prevents ingress of solid foreign objects
Practical performance Designed for real-world operation with minimal downtime
Service Conditions

The switchgear is intended for indoor installation under the following environmental limits:

Condition Requirement
Ambient air temperature –30°C to +50°C (24-hour average ≤ +50°C)
Altitude ≤ 2500m above sea level
Relative humidity ≤ 50% at +40°C; higher humidity allowed at lower temperatures (e.g., 90% at +20°C) – occasional condensation may occur
Atmosphere No fire or explosion hazard; no severe pollution, chemical corrosion, or violent vibration
Installation gradient ≤ 5°
Mechanical stress No strong vibration or impact that could damage electrical components

For special service conditions (e.g., altitude >2500m, high humidity, corrosive atmospheres, outdoor installation), please consult the manufacturer for custom engineering.

Application Scenarios
Sector Typical Use
Power generation & substations Auxiliary power distribution, lighting panels
Industrial & mining Motor control centers (fixed type), equipment supply panels
Commercial buildings Main low-voltage distribution, lighting and power risers
Infrastructure Tunnels, water treatment plants, airports, metro stations
Retrofit projects Replacement of obsolete fixed switchgear in existing facilities
Why Choose GGD/GBD?
  • Utility-approved design – Developed with input from power supply departments and design institutes.
  • Proven reliability – Decades of field operation in demanding industrial environments.
  • Cost-effective – Lower initial investment compared to withdrawable types, without compromising safety or performance.
  • Easy maintenance – Fixed configuration allows straightforward access to all components.
  • Standard-compliant – Fully certified to GB/T 7251.1 and IEC 61439.
Ordering & Customization

Our engineering team can provide:

  • Detailed dimensional drawings
  • Short-circuit verification calculations
  • Customized internal separation (Form 2b, 3b, 4b – subject to design)
  • Special copper busbar layouts
  • Integration with third-party ACBs, MCCBs, and metering devices


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GGD/GBD Type Low Voltage Solid Switchgear

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Product Detail
GBD1/GGD1 Rated Short-Circuit Breaking Current (kA) :
15
GBD2/GGD2 Rated Short-Circuit Breaking Current (kA) :
30
GBD3/GGD3 Rated Short-Time Withstand Current (kA) :
50
Model Number :
GGD/GBD
GBD3/GGD3 Rated Short-Circuit Breaking Current (kA) :
50
GBD1/GGD1 Rated Peak Withstand Current (kA) :
30
Contact Supplier
GGD/GBD Type Low Voltage Solid Switchgear
GGD/GBD Type Low Voltage Solid Switchgear

Jiangsu Changyun Intelligent Technology Co., Ltd

Verified Supplier
1 Years
jiangsu, changzhou
Since 2008
Business Type :
Manufacturer, Seller, Exporter
Main Products :
Eco Friendly Gas Insulated RMU, RMU Ring Main Unit, SF6 Insulated Ring Main Unit
Total Annual :
200000000-300000000
Employee Number :
120~130
Certification Level :
Verified Supplier
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