Electrical Power Distribution Box Manufacturers – Compact Panel Supply
Subian Electric manufactures electrical power distribution boxes from 63 A to 630 A at our 50,000-square-metre factory in Xuzhou, Jiangsu, China. Our 350+ employees have supplied commercial and industrial projects in 50+ countries since 2019.
As a factory-direct manufacturer and supplier, we build distribution boxes with factory pricing, custom schemes and complete test documentation.
Send your load requirements and enclosure preferences. Our export team will respond with a quotation and drawings.
Since 2019 · 50,000m² · 350+ Staff
Electrical Power Distribution Boxes We Manufacture
Distribution boxes from 63 A to 630 A – surface, flush and weatherproof types for commercial, industrial and infrastructure distribution.
-
10kV Dry-Type Transformer-SCBH series Amorphous Alloy
-
20-35KV Dry-Type Transformer
-
20-35KV SCB Series Epoxy Resin Dry-Type Transformer
-
20KV Oil-immersed Distribution Transformer
-
35KV Oil-immersed Power Transformer
-
6-10KV Oil-Immersed Power Distribution Transformer
-
Current Transformer –10KV Indoor High Voltage
-
Current Transformer–LMZK Wound Current Transformer300/5a
-
Current Transformer–LSY-10 transformer Integrated CT
-
current transformer–LXK high voltage zero sequence
-
dry type distribution transformer-6-10 KV SCB series epoxy resin cast
-
Electrical Transformers–JDZ – 10 Power Voltage
What Is an Electrical Power Distribution Box?
An electrical power distribution box distributes power from one incoming supply to multiple outgoing circuits, with breakers and protection for each circuit. It is the final link of the distribution chain.
Distribution boxes serve lighting, socket, equipment and small power circuits in buildings, plants and infrastructure – compact, standardised and quick to install.
- 63 A – 630 A – current range for most distribution duties.
- Multiple mounting – surface, flush and weatherproof types.
- Circuit protection – breakers and RCDs configured per scheme.
- 50,000m² factory – in-house fabrication, assembly and testing.
- 350+ employees – engineering, quality and export teams.
- OEM / ODM & wholesale – custom branding, packaging and volume supply.
Main Types of Power Distribution Boxes
We manufacture three distribution box types:
Surface mounted
Standard wall-mounted boxes for commercial use.
Weatherproof outdoor
IP65 boxes for outdoor and industrial sites.
Feeder pillar
Larger boxes for feeder and sub-distribution duty.
Distribution Box Specifications
| Parameter | Specification |
|---|---|
| Rated current | 63 A – 630 A |
| Voltage | 0.4 kV |
| Enclosure | IP41 – IP65 |
| Material | Steel / stainless / GRP |
| Frequency | 50/60 Hz |
| Standard | IEC 61439 / GB 7251 |
Distribution Box Manufacturing at Our 50,000 m² Factory
From sheet metal fabrication to wiring and testing – every distribution box is built and tested at our Xuzhou facility.
Production Workshop
Controlled winding, core processing and vacuum drying with quality checkpoints between every stage, so quality is built in from the start.
Quality & Testing Center
Routine inspection on every unit before delivery, with type test reports supporting project approval and market certification.
Materials & Components
Core materials, windings and components are checked against the approved bill of materials on every production run.
OEM / ODM / Agency Supply
Custom branding, packaging and configurations for global partners – from nameplate to complete product design – supported by a dedicated export team.
OEM/ODM & Wholesale Distribution Box Supply
Distributors and electrical contractors can brand or resell boxes with custom nameplates and packaging.
OEM / ODM
Factory-Direct
Custom branding, packaging and product variants built on our standard platforms – from a nameplate to full product design.
Custom nameplate · Custom packaging · Full test docs
Wholesale Supply
Volume Pricing
Factory pricing with flexible container quantities, mixed models per container and reliable global shipping for volume buyers and importers.
Container MOQ · Mixed models · Global shipping
Distributor Support
Channel Partners
Dedicated account management, technical documentation and priority production for distributors and project clients.
Account manager · Sales material · Priority lead times
Distribution Box vs Distribution Panel
Distribution boxes are compact, standardised units for small circuits; distribution panels are larger, configured boards for bigger loads and motor control.
We manufacture both – the choice follows load size and application.
Choosing a Power Distribution Box Manufacturer
Verify enclosure quality, breaker integration and test records. Boxes are simple – but circuit protection is safety-critical.
Subian Electric offers a 50,000m² factory, 350+ employees, ISO9001, CE and UL certification and export to 50+ countries.
Send your load requirements – we will respond with a quotation and drawings.
Certifications & Quality Assurance
Our distribution boxes are produced under ISO9001, ISO14001 and ISO45001 management systems, with CE and UL certification and quality inspection.
Product Certifications
Power Distribution Box FAQ
Common questions about electrical power distribution boxes and factory sourcing.
What is a power distribution box?
What sizes do you manufacture?
Can the box be customised?
What enclosure options are available?
What is the difference between a distribution box and a distribution board?
What is the minimum order quantity?
Contact Subian
Need the Right Specification?
Tell us your target market, product type, quantity and technical requirements. Our team will help you identify a suitable configuration for your project.