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EHW400 | SW200 400A 12V SPST-NO DC Contactor
The EHW400 (SW200) 400A 12V DC Contactor is a robust, high-current switching solution designed for demanding DC power systems. It features a rated contact current of 400A and a maximum switching voltage of 80VDC, ensuring reliable performance for heavy-duty applications.
Optional magnetic latching and auxiliary micro switch enhance efficiency and monitoring capabilities, making it a versatile choice for industrial, automotive, and renewable energy systems.
Specifications
| Specification | DATA |
|---|---|
| Model: | EHW400 |
| Rated Contact Current: | 400A |
| Max Contact Switching Voltage: | ≤80VDC |
| Rated Coil Voltage: | 12V, 24V, 48V, 72VDC |
| Contact Arrangement: | 1 Form, SPST-NO |
| Auxiliary (Optional): | Micro switch |
| Magnetic Latching: | Optional |
Wiring Diagram
Dimension Drawing
Applications
The EHW400 (SW200) 400A DC Contactor is widely used in systems requiring secure and reliable high-current switching:
Electric Vehicles & Forklifts
Ensures safe traction control and battery management.
Solar PV & Renewable Energy Systems
Manages high-current DC switching in solar farms and energy storage.
Battery Energy Storage Systems (BESS)
Provides reliable control in large battery banks.
UPS & Backup Power Solutions
Protects and manages critical DC loads.
Marine & Railway Systems
Durable for harsh environments and heavy-duty applications.
Industrial Equipment & Automation
Suitable for heavy machinery, mining, and industrial control.
Why Choose Us as a DC Contactor Supplier?
Optional Features
Magnetic latching and auxiliary micro switch for enhanced monitoring and control.
High DC Contactor Expertise
Over a decade of experience in designing and manufacturing high-current DC contactors.
Dedicated Technical Support
Elehub provides pre-sales guidance and after-sales
Global Compliance
Manufactured according to IEC, CE, and RoHS standards for international markets.
Quality Assurance
Each unit undergoes rigorous testing to ensure reliability and safety.
Custom Solutions
OEM and ODM services available for coil ratings, branding, and packaging.
FAQs
What is the rated contact current?
The EHW400 is rated for 400A continuous current.
Which coil voltages are available?
Supports 12V, 24V, 48V, and 72VDC.
What is the maximum switching voltage?
Safe up to ≤80VDC.
Is magnetic latching available?
Yes, optional magnetic latching improves energy efficiency.
Can auxiliary contacts be added?
Yes, an optional micro switch is available.
Which applications are most suitable?
Commonly used in EVs, BESS, solar PV, UPS, marine, and industrial equipment.
Is it designed for heavy-duty operation?
Yes, built for long-term high-current switching.
Does Elehub provide OEM/ODM services?
Yes, custom branding, coil modifications, and packaging are available.
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