About Us
Your trusted partner in DC contactor technology
Zhejiang Sayoon Electric Co., Ltd. was established in 1998. We are a comprehensive manufacturer integrating DC contactor R&D, production, sales and service. Our company's main products include low-voltage DC contactors, high-voltage DC contactors, magnetic latching DC contactors, pre charging contactor, brush controllers, foot accelerators and other accessories. After years of developme···
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Over two decades of expertise
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Proprietary innovations
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International standards
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Case partner
Our Product
Explore Our Core Product Lines
Our Advantages
Why Sayoon Outperforms
Compact Form Factor
Space-saving designs engineered for high-density installations without compromising switching capacity.
Extended Service Life
Proven mechanical and electrical endurance ratings that reduce total cost of ownership across millions of cycles.
Easy Maintenance
Modular construction and accessible components minimize downtime during field inspection and replacement.
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Industry Application
Our Solutions in Action
AGV & Electric Forklifts
AGVs, electric forklifts and other industrial electric vehicles require reliable power control components to support traction, lifting, braking, battery connection and auxiliary power functions.
Automotive Air Conditioning
Reliable switching for electric compressor circuits in both conventional and electric vehicle HVAC systems, rated for automotive thermal environments.
UPS & Energy Storage
Fast-switching contactors for seamless transfer in UPS systems and large-scale battery energy storage installations.
Marine & Shipbuilding
Corrosion-resistant contactor configurations for shipboard power distribution, propulsion control, and auxiliary systems.
Communication Power Supplies
Compact contactors maintain circuit integrity in telecom rectifiers and data center power distribution, ensuring uninterrupted uptime.
New Energy Electric Vehicles
High-voltage DC contactors manage battery disconnect, pre-charge, and charging circuits in BEVs and HEVs — where safety and reliability are non-negotiable.
OEM & ODM
Custom Solutions, Your Brand
Our FAQ
Frequently Asked Questions
Quick answers to common questions about our products, technical capabilities, and services. Can’t find what you’re looking for? Contact our team directly.
View All FAQ
Our DC contactors are widely used in new energy electric vehicles, communication power supplies, automotive air conditioners, ships, uninterruptible power supplies (UPS), electroplating power supplies, and other systems requiring reliable electronic circuit switching control.
Yes. With our strong R&D team and dozens of patents, we provide OEM/ODM services including modifications to coil voltage, terminal types, mounting brackets, and even fully custom designs to meet specific performance or space requirements.
We are certified under CE, RoHS, FCC, CCC, demonstrating our commitment to quality control, environmental protection, and employee health & safety.
Every product undergoes rigorous testing including dielectric strength, contact resistance, electrical life, and mechanical endurance tests. We also implement traceability systems and regular supplier audits to maintain consistent quality.
Brand & Custom Services
- Having dozens of patents
- Full OEM / ODM support
- Low/high voltage, latching, pre-charging types
- ISO9001, ISO14001, ISO45001
- Private label available
Pre-sales Technical Support
- 24h technical response
- Application engineering (EV, marine, UPS, etc.)
- Free product selection guide
- Sample & prototype validation
- Detailed quote with specs
After-sales & Logistics
- 12 months warranty
- Global shipping (FOB, CNF, EXW)
- After-sales engineer support
- Batch traceability & test reports
- Spare parts & lifecycle support
News & Blog
Rated Current: 50–1500A
Rated Voltage: ≤60V
Contact types: Normally Open / Normally Closed
Coil Type: Single Coil / Dual Coil
Rated Current: 50–3000A
Rated Voltage: ≤80V
Contact Type: 1NO/1NC/1NO1NC/SPDT/DPDT/Magnetic latching


