Pioneering electromagnetic switches, powering the future of new energy.
Thirty-six years of dedication, all for one reliable connection.

Precision manufacturing, benchmarked against world-class international standards.

Born from the profound assimilation and innovation of Denso and Bosch technologies, it redefines Chinese manufacturing with uncompromising precision.

Pioneering electromagnetic switches, powering the future of new energy.

30 years of dedicated expertise in electromagnetic switches and new-energy contactors | National standard drafting organization | Technology on par with Bosch and Denso

Thirty-six years of dedication, all for one reliable connection.

From electromagnetic switches to high-voltage contactors, we provide reliable connections for the heart of the automobile.

Products

Product Series

Energy storage

High-voltage contactors are used to control the circuit between battery clusters and inverters in energy storage systems, ensuring safe protection under conditions of frequent charge–discharge switching.

View more

Aerospace

High-reliability relays and contactors, used in aircraft power control and signal transmission, meet the stringent operational requirements of extreme environments.

View more

New energy sector

High-voltage DC contactors are used in high-voltage circuits such as battery packs, electronic control units, and charging stations, ensuring safe and reliable switching of high currents and supporting fast charging.

View more

Industrial robot

The resolver provides precise feedback on the motor rotor position, enabling high‑precision servo control and signal transmission when used in conjunction with a relay.

View more

Wind power generation

High-voltage contactors are used in pitch and yaw systems as well as grid‑connection applications, offering robust performance in harsh environments and long service life to ensure the continuous and stable operation of wind turbine generators.

View more

Energy storage

Aerospace

New energy sector

Industrial robot

Wind power generation

About us

Zhejiang Huanfang Automotive Electrical Appliances Co., Ltd.

Focusing on electromagnetic technology, serving global smart manufacturing.

Zhejiang Huanfang Automotive Electrical Co., Ltd., established in 1990, is a joint-stock enterprise specializing in the manufacture of electromagnetic switches for starters, relays, and high-voltage contactors for new energy applications. It serves as the principal drafting body for national industry standards related to rotary transformers, electromagnetic switches, and relays, holding a leading position in the sector. For many years, the company has adhered to the business philosophy of “Quality First, Pursuit of Excellence,” leveraging the technological and managerial expertise of Japan’s Denso and Germany’s Bosch to produce high‑quality Huanfang‑branded electromagnetic switches, relays, and high‑voltage contactors for new energy. Its products meet the technical specifications of comparable offerings from Japan and developed countries in Europe and North America, and have already replaced imported alternatives in the domestic supply market.

The company was founded in

1990 year

Annual production volume of electromagnetic switches

1350 Ten thousand pieces

Annual production volume of new-energy high-voltage contactors

180 Ten thousand pieces

Total number of sets of major production and testing equipment

420 Multiple sets

Learn more

Cooperative Clients

Partner Customers and Compatible Vehicle Models

News

Blogs

Industry News

The “Latest Achievements Exhibition” in China’s automotive electronics sector is set to open.

2025-09-03

Thanks to China’s rapid economic growth, owning a car has become increasingly commonplace for ordinary Chinese citizens.

Industry News

The functions of automotive relays are becoming increasingly sophisticated.

2025-09-03

Industry News

Basic structural components of an automotive relay

2025-09-03

The basic structural components of an automotive relay. Within a circuit, a relay serves as a bridge between disconnected or isolated sections, enabling current flow and allowing the circuit to perform its intended function.

Industry News

[Did You Know?] Classification and Functions of Relays

2025-09-03

A relay is an automatic control device that, in response to a specific input signal, either closes or opens a low‑current control circuit, thereby enabling remote control and protection. Currently, according to reports from Yuanze Relay’s R&D department, the input quantities of its relays can include electrical parameters such as current and voltage, as well as non‑electrical quantities like temperature, time, speed, and pressure. The output, in turn, manifests as contact actuation or changes in circuit parameters.

NEED HELP?

Any questions can give us a message, we have professional staff to reply to you, please be sure to fill in the correct contact information!

SUBMIT
%{tishi_zhanwei}%