DSJ
Reliable Partner

UL-certified switchgear and transformers,
built with 40+ years of manufacturing expertise
for reliable performance.

Quick Quote

Our provided products Explore Our Products

01

Low-Voltage Switchgear

We have a comprehensive lineup of low-voltage switchgear and distribution solutions, designed to del...
02

Medium-Voltage Switchgear

We present a robust portfolio of medium voltage equipment, designed to meet the demanding needs of u...
03

Transformer

We offer a diverse range of electrical transformers, engineered to meet global power distribution ne...
04

Generator

We have a comprehensive generator portfolio, featuring top-tier diesel generators and gasoline gener...

Tailored For A Wide Range Of Industries

More Applications

01 Customer Reviews
02 Industrial and Commercial Solution
03 Construction-site Solution
04 Solar Energy Solution

DSJ Projects Projects

DSJ About Us

DSJ was founded
0
Square meters of facility
0_m²
sets of monthly production
capacity
0₊
DSJ Patent Certificate
0₊

About DSJ Electrical Excellence for
more than 40 years

DSJ was

China power distribution equipment & system manufacturer and factory

, founded in 1983, with history of more than 40 years as a leading enterprise specializing in the manufacturing of medium and low voltage electrical products. Headquartered in Beijing, it stands as the top-tier power distribution company. DSJ integrates manufacturing with trade and focuses on the research and development, production......

Read More

Tailored For Featured
Content Hub

Projects

View more of our successful cases.

Read More
Certification

View more of our qualification certificates.

Read More
One-Stop Service

At DSJ, we transform complexity into reliability...

Read More
Manufacturing

DSJ's 25,000m² production base is engineered for precision...

Read More

Latest Updates WHAT’S NEW

Read More

News Jun 03, 2026 A Complete Guide to IP Ratings for Electrical Distribution Cabinets: Definitions and Application Scenarios

In the electrical equipment export industry, one of the most frequent questions from buyers is: "What is the IP rating o...
News Jun 02, 2026 Engineering Collaboration in Action: Joint Design Optimization for Australian Standard-Compliant Switchboards

This week, DSJ carried out an in-depth engineering collaboration with a visiting Australian electrical contractor during...
News Jun 01, 2026 How to Check a Contactor: A Complete Testing Guide

Quick Answer To check a contactor, you need to perform a combination of visual inspection, continuity testing with a m...
News May 30, 2026 Statement on the Successful Resolution of the Trademark Infringement Case Involving Our "DSJ" Brand

In late April 2026, the Huairou District People’s Procuratorate in Beijing concluded a criminal case of trademark infrin...
News May 29, 2026 RCCB vs. RCBO: What Are the Differences and Why is RCBO Essential for Power Distribution?

In the world of electrical protection, ensuring the safety of both personnel and equipment is paramount. When designing ...
News May 28, 2026 DSJ Welcomes Australian Engineering Company PEMBROKE CONSTRUCTION for Factory Visit and Technical Collaboration

This week, DSJ had the pleasure of welcoming engineers from PEMBROKE CONSTRUCTION, a respected Australian engineering an...

Welcome to visit our factory

We warmly invite international customers to visit our factory for a first-hand facility tour. To ensure a seamless experience, complimentary airport pick-up and drop-off services are provided.