DB/SDB (Distribution Board/Sub-Distribution Board) is a standardized low-voltage power distribution solution. The Main Distribution Board (DB) serves as the core distribution unit of the power system, while the Sub-Distribution Board (SDB) further distributes power to end-use equipment. This product series covers a rated current range from 63A to 1600A, suitable for various commercial, industrial, and residential buildings, meeting different environmental power distribution requirements.
Parameter Category | Technical Specifications |
Rated Characteristics | Rated Current (In): 63A, 100A, 250A, 400A, 630A, 800A, 1000A, 1250A, 1600A |
Short-circuit Performance | Rated Short-time Withstand Current (Icw): Up to 25kA/1s |
Protection Degree | IP42 (Indoor standard), IP54 (Outdoor or high protection environments) |
Enclosure Material | Premium galvanized steel (Thickness: 1.2mm-2.0mm) or 304 stainless steel (Special environments) |
Enclosure Dimensions | Various sizes: 400x300x200mm to 1000x800x300mm (HxWxD) |
Cable Entry/Exit | Bottom entry/exit (Standard), Top entry/exit, Side entry/exit (Optional) |
Compliance Standards | IEC 61439, IEC 60529 and relevant national standards |
1.High-quality Protection Design
Special anti-corrosion treatment (Phosphating + Epoxy resin powder coating) provides excellent corrosion resistance
Reasonable ventilation and heat dissipation design ensures long-term stable operation
Optional stainless steel material suitable for special environments
2.Modular Flexible Configuration
Standardized modular design supports various circuit breaker installations (MCB, MCCB, RCCB, RCBO)
Configurable with multiple functional units: Main switch unit, Lighting circuit unit, Socket circuit unit, Motor control unit
Easy expansion allows for adding circuits or upgrading capacity according to changing power demands
3.Safe and Reliable Protection
Fully isolated design with complete separation of live parts prevents accidental contact
High-quality copper busbar connections with low impedance and high conductivity reduce energy loss
Comprehensive earthing system ensures personal safety
Optional transparent polycarbonate covers for easy status checking while providing protection
4.Easy Installation and Maintenance
Front wiring design facilitates installation and maintenance
Spacious wiring space convenient for cable entry and wiring
Clear labeling system supporting multilingual markings
Modular structure allows for quick replacement of components
5.Diverse Application Options
Indoor type: Wall-mounted, Floor-standing
Outdoor type: Waterproof and dustproof, suitable for outdoor installation
Tamper-proof type: Lockable design prevents unauthorized operation
Aesthetic type: Suitable for venues where appearance is important
Commercial Buildings: Shopping malls, office buildings, hotels, hospitals
Industrial Facilities: Factories, workshops, warehouses
Residential Projects: Apartment buildings, villas, residential complexes
Public Facilities: Schools, airports, stations, ports
Infrastructure: Water treatment plants, communication base stations
Our DB/SDB distribution boards are designed and manufactured in accordance with international standards, undergoing strict quality control processes to ensure each product meets relevant safety standards. We provide professional technical support, fast delivery and comprehensive after-sales service, offering reliable power distribution solutions for global customers.