Top 5 Factories of Low Voltage General Switchboard
Low Voltage General Switchboard) is a critical electrical distribution system that manages, protects, and distributes low-voltage power (typically 230/400 V) within a facility, such as a factory, commercial building, hospital, or construction site. From an engineering perspective, it serves as the main interface between the primary power supply (utility grid, transformer, or generator) and secondary circuits or distribution boards. The TGBT integrates components like circuit breakers, disconnect switches, busbars, metering devices, surge protectors, and control systems, compliant with standards such as NF C 15-100 and IEC 61439-1/2. Its modular design ensures adaptability, ease of maintenance, and scalability to meet evolving power demands. In construction, TGBTs are vital for powering temporary equipment (e.g., cranes, pumps, lighting) or permanent installations, often integrated into containerized solutions for mobility and durability, ensuring safety (protection against short circuits, overloads, and electrocution) and energy efficiency.
List of 5 Top Suppliers with Technical Specifications,
Below is an updated list of the five leading TGBT suppliers, including Aventech, ranked based on their global reputation, technical expertise, and relevance to the construction industry. Technical specifications are derived from official websites and industry standards, with Aventech details based on provided web information.
- Aventech
Ranking: 1
Specialties: Custom-designed, modular, and containerized TGBTs for industrial, energy, and construction applications.
Technical Specifications:- Range: Omerys (up to 6300 A, 690 V).
- Compliance: NF EN 61439-1/2, arc fault resistance (IEC 61641).
- Modularity: Fixed, disconnectable, or withdrawable configurations (Service Index IS 111 to 333), supporting functional units (FU), motor control centers (MCC), and power control centers (PCC).
- Safety: Painted or stainless steel enclosure (Alu/Zinc 2 mm), IP20 to IP54 protection (higher on request), copper busbars tested up to 130 kA/1 s.
- Connectivity: Wired or network communication systems (Profibus, RS485, Modbus, Ethernet) for remote monitoring.
Construction Application Example: On a factory construction site in Chongqing, Aventech supplied a 4000 A Omerys TGBT in a containerized unit, powering industrial machinery and temporary site offices. Its modular design allowed additional circuits to be added in 2 days, reducing commissioning delays.
Website: aventech-e.com
- Schneider Electric
Ranking: 2
Specialties: Modular, energy-efficient, and IoT-connected TGBTs for industrial and commercial construction.
Technical Specifications:- Range: Prisma P (up to 4000 A, 230/400 V).
- Compliance: IEC 61439-1/2, IP55 protection, arc fault resistance (IEC 61641).
- Modularity: DIN rail framework, MasterPact MTZ circuit breakers with IoT connectivity.
- Safety: IP2X insulated panels, overload protection.
- Connectivity: EcoStruxure Power for real-time energy monitoring and predictive maintenance.
Construction Application Example: For a shopping mall project in Shanghai, Schneider deployed a 3200 A Prisma P TGBT connected to EcoStruxure, powering electric cranes and temporary lighting, achieving a 12% reduction in energy consumption through smart load management.
Website: schneider-electric.com
- ABB
Ranking: 3
Specialties: Robust TGBTs for harsh environments, with digital integration.
Technical Specifications:- Range: MNS 3.0, System pro E power (up to 6300 A, 690 V).
- Compliance: IEC 61439-1/2, IP54 protection, arc fault tested.
- Modularity: Withdrawable functional units, busbars up to 6300 A.
- Safety: Emax 2 circuit breakers with integrated metering.
- Connectivity: ABB Ability for remote diagnostics and monitoring.
Construction Application Example: On a highway construction site in Guangzhou, ABB installed a 2500 A MNS 3.0 TGBT in a containerized setup, powering concrete pumps and lighting towers, with remote monitoring reducing downtime by 15%.
Website: abb.com
- Siemens
Ranking: 4
Specialties: Scalable TGBTs with sustainable and digital solutions.
Technical Specifications:- Range: Sivacon S8 (up to 7000 A, 690 V).
- Compliance: IEC 61439-1/2, IP55 protection, arc fault tested.
- Modularity: Fixed or withdrawable configurations, low-loss busbars.
- Safety: 3WL circuit breakers, integrated differential protection.
- Connectivity: MindSphere for real-time energy data analysis.
Construction Application Example: For a residential tower project in Beijing, Siemens provided a 4000 A Sivacon S8 TGBT connected to MindSphere, powering construction elevators and temporary HVAC systems, optimizing energy use by 10%.
Website: siemens.com
- Eaton
Ranking: 5
Specialties: Compact, energy-efficient TGBTs for modular construction sites.
Technical Specifications:- Range: xEnergy (up to 5000 A, 690 V).
- Compliance: IEC 61439-1/2, IP55 protection, arc fault tested.
- Modularity: Withdrawable units, vertical omnibus busbars for reduced footprint.
- Safety: NZM circuit breakers, differential protection.
- Connectivity: Power Xpert for energy monitoring and predictive maintenance.
Construction Application Example: On a data center construction site in Shanghai, Eaton deployed a 3000 A xEnergy TGBT in a containerized shelter, powering cooling systems and servers, reducing space requirements by 20% with compact busbars.
Website: eaton.com
Technical Notes
- Standards and Safety: All TGBTs comply with NF C 15-100 and IEC 61439-1/2, with arc fault resistance testing (IEC 61641) ensuring operator and equipment safety.
- Containerization: Aventech’s containerized Omerys TGBTs are particularly suited for construction, with Magnelis-painted steel enclosures designed for outdoor durability.
- Construction Applications: are critical for powering temporary (e.g., cranes, pumps, lighting) or permanent loads, with flexibility to adapt to varying power demands and regulatory requirements.
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