Product Overview
The low voltage distribution board is designed for receiving, distributing, and protecting electrical power in low-voltage systems, providing a core power transfer solution between transformers, generators, renewable energy systems (such as solar power and energy storage systems), and downstream electrical loads. By integrating switching devices, protection components, busbar systems, and control accessories within a structured enclosure, the equipment ensures safe operation and convenient maintenance for industrial and commercial power grids.
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To ensure compliance with engineering entry requirements across different countries and regions worldwide, our manufacturing and testing processes strictly align with international standards:
Typical Application Fields
Industrial Manufacturing
Manufacturing plants, machinery workshops, heavy industrial production lines
Commercial Buildings
Commercial complexes, office buildings, large hotels, hospitals, and public facilities
Infrastructure
Transportation hubs, public utilities, water treatment facilities, and large-scale construction projects
Renewable Energy and Energy Storage
Solar power plants, wind power integration, grid-side and C&I energy storage system (ESS) low-voltage AC distribution
Incoming power section (equipped with circuit breakers or disconnect switches)
Distribution feeder section
Circuit protection units
High-quality copper or aluminum busbar system
Metering and monitoring components
Cable connection compartments
High-strength rust-resistant steel structured protective enclosure
Main Technical Specifications
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Technical Parameter |
Specification Range |
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Rated Operating Voltage |
Up to 1000V AC |
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Rated Operating Frequency |
50Hz / 60Hz |
|
Rated Current |
Customized according to system load requirements |
|
Short-Circuit Withstand Capability |
Designed according to application site short-circuit levels |
|
Protection Degree |
IP30, IP40, IP54, or customized |
|
Installation Type |
Floor-mounted or wall-mounted |
|
Enclosure Material |
High-strength powder-coated steel sheet / optional stainless steel |
|
Busbar Material |
High-quality copper or aluminum |
|
Design Standard |
IEC 61439 |
Product Types and Functions
Main Distribution Board (MDB)
Acts as the primary power distribution node at the output end of transformers or generators, featuring high incoming current capacity, supporting multiple outgoing feeder circuits, and providing centralized electrical protection management.
Final Distribution Board
Used for secondary power distribution in commercial buildings, office blocks, and public facilities, featuring a compact structure, convenient circuit management, and flexible outgoing circuit configuration.
Industrial Distribution Board (MCC)
Designed for harsh manufacturing environments, supporting production lines, motor drives, and heavy industrial equipment, equipped with molded case circuit breakers, motor protection units, and intelligent monitoring systems.
Structural Design Features
Protection System
Provides excellent mechanical protection, dust resistance, and environmental adaptability through multi-layer surface coating processes.
Busbar Design
Optimizes current-carrying capacity and thermal performance, ensuring mechanical strength under short-circuit faults, with support for customized arrangements.
Modular Layout
Allows flexible internal component arrangement, simplifies maintenance procedures, and reserves space for future system expansion.
Selection Guide
Determine Rated Current
Comprehensively consider total connected load, future system expansion requirements, and load characteristics.
Define Protection Logic
Configure based on site short-circuit current levels, environmental conditions, and safety redundancy requirements.
Confirm Installation Environment
Specify whether the installation location involves outdoor use, moisture proofing, temperature control, or dust protection requirements.
Confirm Component Specifications
Determine specific models for required circuit breakers, metering instruments, and protection relays.
Manufacturing and Quality Control Process
Engineering Review: Conduct electrical schematic evaluations, component selection checks, and layout verification prior to production.
Precision Assembly: Includes enclosure fabrication, surface coating treatment, component installation, busbar pre-processing, and internal wiring.
Rigorous Testing: Executes visual inspections, electrical continuity verification, insulation resistance testing, functional logic checking, and protection system tripping tests.
Customization Capabilities
Full-process customization is supported based on the following dimensions:
Specified electrical drawings and single-line diagrams
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Installation space dimension constraints
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Core electrical component brands and specifications
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Cable entry/exit directions and arrangement methods
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Protection levels and internal configurations
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Frequently Asked Questions
We're well-known as one of the leading low voltage distribution board manufacturers in China, featured by quality products and good service. Please rest assured to buy customized low voltage distribution board made in China here from our factory. Contact us for more details.
