Company Overview

Hotson is a modern manufacturing company specialized in the R & D,manufacturing and sales of sealed high voltage DC contactors and relays. As a subsidiary factory under China Zhenhua Group, we have 10,000 square meters factroy, and own a professional technical team of nearly 30 people. Through collaboration with Nanjing Southeast University and industry leaders, we established Guiyang Laboratory and R & D center in Suzhou. This enables us to design and manufacture high quality and reliable sealed power products for our customer. We have successively obtained more than 60 patents, now can supply both Epoxy sealed and Ceramic sealed contactors. Rely on ISO9001 and IATF 16949 quality management systems, and our modern production test equipments, our DC contactors are CE, CCC and mostly are UL approved. It’s widely used in Electric Vehicles( Commercial Vehicles, Passenger Vehicles), EV Charging Station, AGV Robots, Energy Storage Equipments, Solar Power Generation and other DC power apply solutions.


dc contactor manufacturer certifications1
dc contactor manufacturer certifications2

Technical Advantage

Magnetic analysis

Strain analysis

Magnetic analysis

Stress analysis

EM simulation

DC contactor EM simulation

Automatic assembly line

DC relay equipment

Laser welding equipment

DC contactor equipment

Automatic Test Line

EV parts equipment

Automatic baking system

DC relay equipment