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EHW500 | RW500 500A 12V SPST Busbar DC Contactor
The EHW500 (RW500) 500A 12V DC Contactor is a high-current switching device designed for busbar-mounted DC systems. it delivers stable and reliable performance in demanding electrical applications. It supports coil voltages of 12V, 24V, 48V, and 72VDC, making it versatile for various system designs.
The EHW500 provides dependable load control, while optional magnetic latching reduces power consumption. An auxiliary micro switch option is also available for monitoring and feedback functions.
Specifications
| Specification | DATA |
|---|---|
| Model: | EHW500 |
| Rated Contact Current: | 500A |
| 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 DC contactor is widely applied in high-current DC systems where safety and reliability are critical, including:
Electric Vehicles & Forklifts
For reliable traction control and battery power management.
Battery Energy Storage Systems (BESS)
Provides stable switching in large-scale battery banks.
Solar PV & Renewable Energy
Ensures safe high-current switching in solar farms and wind systems.
UPS & Backup Power Systems
Protects and manages critical DC power loads.
Marine & Railway Applications
Designed to handle rugged environments and heavy DC power needs.
Industrial Equipment & Heavy Machinery
Suitable for mining, construction, and automation systems.
Why Choose Us as a DC Contactor Supplier?
DC Contactor Expertise
Over a decade of experience in high-current DC contactors, circuit breakers, and switching devices.
Superior Build Quality
Durable silver alloy contacts and arc suppression design ensure long service life.
Flexible Options
Available with magnetic latching, auxiliary micro switches, and multiple coil voltages (12V–72V).
Global Standards Compliance
Manufactured to IEC, CE, and RoHS standards for worldwide compatibility.
Dedicated Technical Service
Our engineering team provides pre-sales consultation and after-sales support.
OEM & ODM Capabilities
Support for custom coil ratings, branding, and packaging to match client needs.
FAQs
What is the rated contact current of the EHW500?
It is rated for 500A continuous current.
What coil voltages are available?
The EHW500 supports 12V, 24V, 48V, and 72VDC.
What is the maximum switching voltage?
It can switch up to ≤80VDC safely.
In which industries is it most used?
Commonly used in EVs, solar power, BESS, UPS, marine, and heavy machinery applications.
Does it support magnetic latching?
Yes, magnetic latching is available as an option for energy efficiency.
What industries use this contactor?
The HVC600 is commonly used in electric vehicles, renewable energy systems, industrial automation, and telecommunication power systems.
Can it be supplied with auxiliary contacts?
Yes, an optional micro switch can be added for monitoring.
Does Elehub offer OEM/ODM services?
Yes, we provide custom branding, labeling, and coil modifications upon request.
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