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Precision Manufacturing.

Proven Quality.

 clean workshop 

2,500 m² 

 5 

 automated production lines  

 15 

 million units

Experienced engineering team / Complete quality assurance system / Reliable delivery and service

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Clean & Controlled Environment

2,500 m² clean workshop

5 automated production lines

Advanced Automation

Full-process inspection and test

Strict Quality Control

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Annual capacity up to

Our Product Categories

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DC Contactor (Anti-Welding)

Magnetic Latching Contactor

General-purpose Relay

Automotive Relay

Start / Pre-charge Relay

High Voltage DC Contactor

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Founded in May 2007 in Hefei, Anhui, Anhui Yisuo Electronic Technology Co., Ltd. is an integrated enterprise specializing in the research, development, production and sales of automotive relays and high voltage DC contactors.
The company focuses deeply on new energy, power batteries, energy storage, charging piles, engineering vehicles, lithium batteries, automotive wiring harnesses, central control boxes and automotive air-conditioning systems. We are committed to providing reliable supporting products and services for customers in these industries.
Our core management and technical teams come from well-known domestic and international relay and high voltage DC contactor manufacturers, bringing strong industry experience in product development, process engineering, manufacturing and quality management. 

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About Anhui Yisuo

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Why Choose Yisuo

Yisuo is committed to continuous product innovation, process innovation and management innovation. Guided by the enterprise spirit of “Focus, Exploration, Continuous Improvement and Progress,” we continuously improve product reliability, production efficiency and customer satisfaction.

2007

Established in 2007

2500 m²

Clean Production Workshop

5

Automated Production Lines

15 Million pcs

Annual Capacity

IATF 16949

Certified

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QUALIFICATION

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Success Cases

The product is based on the excellent anti-surge current impact design of the contactor body. It can withstand frequent and high-intensity current impacts under harsh working conditions, reducing the risks of contact point sticking and burning, and significantly reducing on-site after-sales failure incidents for customers.
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Forklift battery

Lithium batteries for aerial work platforms and loading machines and other construction machinery

Industrial and commercial energy storage cabinets

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Our Factory

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Exhibition Photos

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Our Partners

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Contact

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Company News
YSV6 TUV Rheinland Component Certification
YSV6 TUV Rheinland Component CertificationThe TÜV certificate is issued by EU Notified Body TÜV Rheinland LGA Products GmbH on 14.08.2026 per standard EN 61810‑1:2015+A1 & IEC 61810‑1:2015+A1 (Certificate No. R 50737875 0001). This automotive relay is widely used for seat & window heating,
Created on Today
Automated Electrical Performance Testing for Automotive Relays | Strict Quality Assurance
Automated Electrical Performance Testing for Automotive Relays | Strict Quality Assurance
Created on 08.10
YSCJ400 EU LVD & Canada UL Recognized Component Certification
YSCJ400 EU LVD & Canada UL Recognized Component CertificationThe LVD certificate is issued by EU Notified Body TÜV Rheinland LGA Products GmbH per Directive (EU) 2014/35. The UL Recognized Component certification, accredited by SCC, complies with Canadian national electrical standards for components built int
Created on 07.07
Yisuo Electronics launches new latching relays YSCJ300 / YSCJ400 for energy storage and vehicle-mounted applications, featuring exceptional resistance to overload and surge currents.
Yisuo Electronics launches new latching relays YSCJ300 / YSCJ400 for energy storage and vehicle-mounted applications, featuring exceptional resistance to overload and surge currents.Developed in compliance with the IATF16949 automotive quality standard, the high-performance magnetic latching contactors YSCJ300 and YSCJ400 are optimized for lithium battery systems in forklifts. Beyond excellent heavy-current make-and-break perfor
Created on 07.07
Yisuo Electronics launches the new YSZJ200/YSZJ400 DC contactors, featuring excellent high-current carrying capacity and robust short-circuit resistance.
Yisuo Electronics launches the new YSZJ200/YSZJ400 DC contactors, featuring excellent high-current carrying capacity and robust short-circuit resistance.Compliant with RoHS standards, the YSZJ200 and YSZJ400 DC contactors are designed for heavy-duty, high-power DC applications. Both models offer outstanding current switching capability, along with superior tolerance to short-term overloads and transi
Created on 07.07
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