Best High Voltage Relays: Top Picks for Reliable Performance

Looking for the best high voltage relays? We’ve curated a list of top-rated options to help you make a confident choice for your electrical needs.

High voltage relays are essential for powerful and safe electrical systems. They handle heavy currents and high voltages, making them perfect for EV charging, solar power, and industrial applications. These relays ensure reliable performance in demanding environments.

Choosing the right relay can be overwhelming with so many options. Our guide simplifies this by highlighting top-rated relays with key features like high amperage, temperature resistance, and safety certifications. We’ve done the research so you don’t have to.

Discover the best high voltage relays tailored to your needs. Whether you’re upgrading a system or starting a new project, our guide ensures you make a confident choice. Let’s dive in!

List of Top 10 High Voltage Relays

Image Title Best For Price
HIITIO High Voltage DC Relays Contactors Ceramic, 40A 1000Vdc High Voltage DC Relay Contactors, ESS, EV Charging, EV/HEV, PV/Solar Power, Wind Power, UL Listed HIITIO High Voltage DC Relays Contactors Ceramic, 40A 1000Vdc High Voltage DC Relay Contactors, ESS, EV Charging, EV/HEV, PV/Solar Power, Wind Power, UL Listed

This relay is perfect for engineers and builders who need strong, safe, high‑voltage control in EV, solar, wind, or ESS systems. It fits anyone who wants steady performance and easy setup with no fuss.

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Weasch 2 Pack Car Relay, 36V 40A, 4 Pin SPST, Automotive Switches and Starters, Waterproof Relay for Boat Tractor Truck Motorcycle (2) Weasch 2 Pack Car Relay, 36V 40A, 4 Pin SPST, Automotive Switches and Starters, Waterproof Relay for Boat Tractor Truck Motorcycle (2)

This car relay is perfect for anyone who needs a strong, simple, and reliable power switch for a car, truck, boat, tractor, or motorcycle. It works well for people who want steady performance and easy setup.

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Supco 9065 Potential Relay, 35 A at 277 VAC Contact Rating, 50/60 hz Cycle, 332 V Continuous Coil Voltage, 168/182 Pick-Up Min/Max, 90 Drop Max Supco 9065 Potential Relay, 35 A at 277 VAC Contact Rating, 50/60 hz Cycle, 332 V Continuous Coil Voltage, 168/182 Pick-Up Min/Max, 90 Drop Max

The Supco 9065 Potential Relay is perfect for anyone needing a reliable relay for starting motors. It’s easy to install and meets high safety standards, making it ideal for both professionals and DIY enthusiasts.

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HIITIO 1000VDC 150A High Power DC Contactor | UL, RoHS, Reach Certified | Epoxy Sealed SPST-NO Relay | for EV Charging, Solar Systems | -40°C to +85°C Operating Temperature, HCZ01-150F-A HIITIO 1000VDC 150A High Power DC Contactor | UL, RoHS, Reach Certified | Epoxy Sealed SPST-NO Relay | for EV Charging, Solar Systems | -40°C to +85°C Operating Temperature, HCZ01-150F-A

This HIITIO 1000VDC 150A High Power DC Contactor is perfect for EV charging stations and solar systems. It works well in extreme temperatures and ensures safe, reliable performance.

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HIITIO 1000VDC 100A High Voltage DC Contactor - Epoxy Sealed Normally Open SPST-NO Power Relay with UL, RoHS, Reach Certification 24V Coil for Extreme Environments (-40°C to +85°C), HCZ02-100F-24P HIITIO 1000VDC 100A High Voltage DC Contactor – Epoxy Sealed Normally Open SPST-NO Power Relay with UL, RoHS, Reach Certification 24V Coil for Extreme Environments (-40°C to +85°C), HCZ02-100F-24P

The HIITIO 1000VDC 100A High Voltage DC Contactor is perfect for extreme environments. It works well in very cold or hot places, from -40°C to +85°C. Use it for solar power systems, electric vehicles, or industrial machines that need reliable and safe switching.

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TWTADE/JQX-62F-2Z Coil Voltage AC 110V 80A DPDT Electronmagnetic Relay,High Power Relay AC 110V TWTADE/JQX-62F-2Z Coil Voltage AC 110V 80A DPDT Electronmagnetic Relay,High Power Relay AC 110V

This high-power relay is perfect for anyone needing a reliable, heavy-duty switch for AC 110V systems. It’s ideal for projects requiring 80A load capacity and DPDT contacts.

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EV200AAANA 12/24V/500A 1618002-7 Energy Electric Vehicle contactor high Voltage DC Relay EV200AAANA 12/24V/500A 1618002-7 Energy Electric Vehicle contactor high Voltage DC Relay

This EV200AAANA contactor is perfect for electric vehicle makers and engineers. It’s ideal for high-voltage DC systems needing reliable performance.

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Weasch 2Pcs High Power Relay JQX-62F-2Z, Coil Voltage AC 110V 80A, DPDT 2NO 2NC, Electronmagnetic Relay, 35mm Rail Mount (AC 110V, 2) Weasch 2Pcs High Power Relay JQX-62F-2Z, Coil Voltage AC 110V 80A, DPDT 2NO 2NC, Electronmagnetic Relay, 35mm Rail Mount (AC 110V, 2)

This relay is perfect for builders, tech hobbyists, and anyone who needs strong, steady power control in their projects. It works well for people who want safe, reliable switching without any fuss.

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HIITIO High Voltage DC Relays Contactors Ceramic, 60A 1000Vdc High Voltage DC Relay Contactors, ESS, EV Charging, EV/HEV, PV/Solar Power, Wind Power, UL Listed HIITIO High Voltage DC Relays Contactors Ceramic, 60A 1000Vdc High Voltage DC Relay Contactors, ESS, EV Charging, EV/HEV, PV/Solar Power, Wind Power, UL Listed

This is perfect for engineers and builders who need safe, strong, and steady high‑voltage control. It fits anyone working with EV systems, solar setups, or power storage who wants simple use and high reliability.

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HIITIO High Voltage DC Relays Contactors Ceramic, 500A 1000Vdc High Voltage DC Contactor, ESS, EV Charging, EV/HEV, PV/Solar Power, Wind Power, UL Listed HIITIO High Voltage DC Relays Contactors Ceramic, 500A 1000Vdc High Voltage DC Contactor, ESS, EV Charging, EV/HEV, PV/Solar Power, Wind Power, UL Listed

This high voltage DC contactor is perfect for professionals in EV charging, solar power, wind power, and energy storage systems. It’s built tough to handle extreme conditions and ensures safety with zero arc formation.

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Detailed Reviews

Discover the top 10 High Voltage Relays in our expert-curated guide, blending performance, safety, and value. Whether for EV charging, solar power, or industrial use, find the perfect fit for your needs. Read on to make an informed choice with confidence.

1. HIITIO High Voltage DC Relays Contactors Ceramic, 40A 1000Vdc High Voltage DC Relay Contactors, ESS, EV Charging, EV/HEV, PV/Solar Power, Wind Power, UL Listed

HIITIO High Voltage DC Relays Contactors Ceramic, 40A 1000Vdc High Voltage DC Relay Contactors, ESS, EV Charging, EV/HEV, PV/Solar Power, Wind Power, UL Listed

This high‑voltage DC relay delivers strong, steady power. It stays stable even under heavy use.

It blocks oxidation. It keeps zero arcs. It runs 40A at high heat.

The relay is easy to use with no polarity limits. It also meets strict RoHS rules for clean, safe performance.

Pros Cons
  • Resists oxidation with ceramic seal and H2 mixed gas.
  • Zero arcs ensure safety and reliability.
  • Handles 40A at 85°C for high heat resistance.
  • No polarity needed for easy installation.
  • High price point may not suit all budgets.
  • Bulkier design could limit installation options.
  • Specialized use, not ideal for general applications.

Perfect For:

This relay is perfect for engineers and builders who need strong, safe, high‑voltage control in EV, solar, wind, or ESS systems. It fits anyone who wants steady performance and easy setup with no fuss.

Ready to Purchase?

2. Weasch 2 Pack Car Relay, 36V 40A, 4 Pin SPST, Automotive Switches and Starters, Waterproof Relay for Boat Tractor Truck Motorcycle (2)

Weasch 2 Pack Car Relay, 36V 40A, 4 Pin SPST, Automotive Switches and Starters, Waterproof Relay for Boat Tractor Truck Motorcycle (2)

The Weasch 2 Pack Car Relay is a reliable automotive switch. It works with 36V systems and handles up to 40A. This waterproof relay is great for boats, tractors, trucks, and motorcycles.

It has a 4-pin SPST design for easy use. The Ag alloy contacts ensure durable performance.

Each pack includes two car relays. They are ready to use right out of the box.

Pros Cons
  • Waterproof design ensures reliable performance in any weather.
  • High capacity handles 36V 40A for powerful applications.
  • Durable Ag Alloy contacts for long-lasting use.
  • Easy installation with 4-pin SPST configuration.
  • Limited voltage range: Not suitable for higher voltage systems.
  • No mounting hardware included: Requires extra parts for installation.
  • Basic design: Lacks advanced features for complex automotive setups.

Perfect For:

This car relay is perfect for anyone who needs a strong, simple, and reliable power switch for a car, truck, boat, tractor, or motorcycle. It works well for people who want steady performance and easy setup.

Ready to Purchase?

3. Supco 9065 Potential Relay, 35 A at 277 VAC Contact Rating, 50/60 hz Cycle, 332 V Continuous Coil Voltage, 168/182 Pick-Up Min/Max, 90 Drop Max

Supco 9065 Potential Relay, 35 A at 277 VAC Contact Rating, 50/60 hz Cycle, 332 V Continuous Coil Voltage, 168/182 Pick-Up Min/Max, 90 Drop Max

The Supco 9065 Potential Relay is a reliable solution for starting motors. It handles 35 A at 277 VAC and works with 50/60 Hz cycles. This relay is built to last and meets OEM standards.

It includes a universal mounting bracket, wiring diagram, and clear instructions. The relay is UL recognized and CSA certified, ensuring safety and quality.

With a 332 V continuous coil voltage, it operates smoothly. The pick-up range is 168/182, and the drop max is 90. This relay is easy to install and ready to use.

Pros Cons
  • Easy to mount with its break-off bracket
  • Safe use thanks to UL and CSA marks
  • Clear setup with built‑in wiring guide
  • Strong coil for steady motor starts
  • Fits many motor start needs with ease
  • Not ideal for tight spaces
  • Setup may take extra time
  • Bracket can feel a bit flimsy

Perfect For:

The Supco 9065 Potential Relay is perfect for anyone needing a reliable relay for starting motors. It’s easy to install and meets high safety standards, making it ideal for both professionals and DIY enthusiasts.

Ready to Purchase?

4. HIITIO 1000VDC 150A High Power DC Contactor | UL, RoHS, Reach Certified | Epoxy Sealed SPST-NO Relay | for EV Charging, Solar Systems | -40°C to +85°C Operating Temperature, HCZ01-150F-A

HIITIO 1000VDC 150A High Power DC Contactor | UL, RoHS, Reach Certified | Epoxy Sealed SPST-NO Relay | for EV Charging, Solar Systems | -40°C to +85°C Operating Temperature, HCZ01-150F-A

The HIITIO 1000VDC 150A High Power DC Contactor is a reliable and certified solution for high-power applications. It’s perfect for EV charging and solar systems, handling up to 1000VDC and 150A with ease.

Its epoxy-sealed design protects against oxidation and arc leakage, ensuring safety and durability. Works in extreme temps from -40°C to +85°C.

Pros Cons
  • Handles high 1000VDC loads with ease
  • Delivers strong 150A performance
  • Sealed design keeps parts safe and clean
  • Stops arc leaks for steady use
  • Works in harsh -40°C to +85°C temps
  • High voltage may need extra safety steps
  • Single contact limits advanced control
  • Noisy arcs can occur under heavy load

Perfect For:

This HIITIO 1000VDC 150A High Power DC Contactor is perfect for EV charging stations and solar systems. It works well in extreme temperatures and ensures safe, reliable performance.

Ready to Purchase?

5. HIITIO 1000VDC 100A High Voltage DC Contactor – Epoxy Sealed Normally Open SPST-NO Power Relay with UL, RoHS, Reach Certification 24V Coil for Extreme Environments (-40°C to +85°C), HCZ02-100F-24P

HIITIO 1000VDC 100A High Voltage DC Contactor - Epoxy Sealed Normally Open SPST-NO Power Relay with UL, RoHS, Reach Certification 24V Coil for Extreme Environments (-40°C to +85°C), HCZ02-100F-24P

The HIITIO 1000VDC 100A High Voltage DC Contactor is built tough. It works in extreme temperatures from -40°C to +85°C. Its epoxy-sealed design keeps it safe and reliable.

It handles 1000VDC and 100A with ease. The SPST-NO contacts are polarized for precision. Its 24V coil ensures efficient operation.

This relay is certified for safety and quality. It’s UL, RoHS, and Reach approved. Perfect for demanding environments.

Pros Cons
  • Handles 1000VDC and 100A for extreme power needs.
  • Epoxy sealed design ensures no oxidation or arc leakage.
  • Works in harsh conditions from -40°C to +85°C.
  • Certified safe with UL, RoHS, and Reach approvals.
  • High cost for small-scale or budget-conscious projects.
  • Bulkier size may limit use in compact systems.
  • Specialized use not ideal for general applications.

Perfect For:

The HIITIO 1000VDC 100A High Voltage DC Contactor is perfect for extreme environments. It works well in very cold or hot places, from -40°C to +85°C. Use it for solar power systems, electric vehicles, or industrial machines that need reliable and safe switching.

Ready to Purchase?

6. TWTADE/JQX-62F-2Z Coil Voltage AC 110V 80A DPDT Electronmagnetic Relay,High Power Relay AC 110V

TWTADE/JQX-62F-2Z Coil Voltage AC 110V 80A DPDT Electronmagnetic Relay,High Power Relay AC 110V

The TWTADE/JQX-62F-2Z High Power Relay gives you strong, steady control. It uses a 110V AC coil and handles 80A with ease.

This relay has DPDT contacts with 2NO + 2NC points for flexible use. It comes with 8 terminals and a solid build that feels reliable.

It is simple. It is strong. It is ready.

Pros Cons
  • Strong 80A load support
  • Reliable AC 110V coil
  • Durable DPDT contact design
  • Solid build for heavy use
  • Easy setup with 8 terminals
  • Heavy build may be hard to mount
  • Large size takes up more space
  • High load may need extra care

Perfect For:

This high-power relay is perfect for anyone needing a reliable, heavy-duty switch for AC 110V systems. It’s ideal for projects requiring 80A load capacity and DPDT contacts.

Ready to Purchase?

7. EV200AAANA 12/24V/500A 1618002-7 Energy Electric Vehicle contactor high Voltage DC Relay

EV200AAANA 12/24V/500A 1618002-7 Energy Electric Vehicle contactor high Voltage DC Relay

The EV200AAANA is a high voltage DC relay designed for electric vehicles. It handles 12/24V and 500A with ease. This contactor ensures reliable performance in demanding EV applications.

It features a compact design for easy installation. The durable construction ensures long-lasting use.

This relay is a key component for electric vehicle systems. Its high voltage capability makes it ideal for modern EVs. Trust the EV200AAANA for efficient and safe operation.

Pros Cons
  • High power for tough EV systems
  • Strong build for long use
  • Fast switch for smooth flow
  • Safe design for steady work
  • Low loss for better output
  • High voltage may pose safety risks if mishandled.
  • Limited compatibility with non-EV applications.
  • Complex installation requires professional expertise.

Perfect For:

This EV200AAANA contactor is perfect for electric vehicle makers and engineers. It’s ideal for high-voltage DC systems needing reliable performance.

Ready to Purchase?

8. Weasch 2Pcs High Power Relay JQX-62F-2Z, Coil Voltage AC 110V 80A, DPDT 2NO 2NC, Electronmagnetic Relay, 35mm Rail Mount (AC 110V, 2)

Weasch 2Pcs High Power Relay JQX-62F-2Z, Coil Voltage AC 110V 80A, DPDT 2NO 2NC, Electronmagnetic Relay, 35mm Rail Mount (AC 110V, 2)

The Weasch High Power Relay is a reliable and powerful device. It comes in a pack of two, ready for use. Each relay is easy to install and built to last.

This JQX-62F-2Z model has a coil voltage of AC 110V. It can handle a contact capacity of 80A. The DPDT 2NO+2NC contact type makes it versatile.

With silver alloy contacts, it ensures smooth operation. The 35mm rail mount allows for quick setup. This relay is a great choice for high-power applications.

Pros Cons
  • High power relay handles 80A with AC 110V coil.
  • DPDT 2NO+2NC contacts for flexible control.
  • Silver alloy contacts ensure reliable performance.
  • Easy 35mm rail mount for quick installation.
  • No built-in protection against overloads or short circuits.
  • Requires expert installation for safe operation.
  • Limited compatibility with lower voltage systems.

Perfect For:

This relay is perfect for builders, tech hobbyists, and anyone who needs strong, steady power control in their projects. It works well for people who want safe, reliable switching without any fuss.

Ready to Purchase?

9. HIITIO High Voltage DC Relays Contactors Ceramic, 60A 1000Vdc High Voltage DC Relay Contactors, ESS, EV Charging, EV/HEV, PV/Solar Power, Wind Power, UL Listed

HIITIO High Voltage DC Relays Contactors Ceramic, 60A 1000Vdc High Voltage DC Relay Contactors, ESS, EV Charging, EV/HEV, PV/Solar Power, Wind Power, UL Listed

The HIITIO High Voltage DC Relay is a powerful and reliable solution for your electrical needs. It handles 60A and 1000Vdc, making it ideal for EV charging, solar power, and more. Its ceramic seal keeps it safe and efficient.

This relay is built to last with antioxidant features that prevent contact oxidation. The magnetic blow-out technology ensures zero arcs, keeping your system safe and reliable. It works continuously at 85°C, making it heat-resistant.

The HIITIO relay is easy to use with no polarity requirements. It meets RoHS standards, ensuring excellent quality. Trust this UL Listed product for your high-voltage applications.

Pros Cons
  • Resists oxidation with ceramic seal and H2 mixed gas.
  • Zero arcs ensure safety and reliability.
  • Handles 60A at 85°C for high heat resistance.
  • No polarity requirement for easy installation.
  • High price point may deter budget-conscious buyers.
  • Limited availability in certain regions.
  • Complex installation for non-professionals.

Perfect For:

This is perfect for engineers and builders who need safe, strong, and steady high‑voltage control. It fits anyone working with EV systems, solar setups, or power storage who wants simple use and high reliability.

Ready to Purchase?

10. HIITIO High Voltage DC Relays Contactors Ceramic, 500A 1000Vdc High Voltage DC Contactor, ESS, EV Charging, EV/HEV, PV/Solar Power, Wind Power, UL Listed

HIITIO High Voltage DC Relays Contactors Ceramic, 500A 1000Vdc High Voltage DC Contactor, ESS, EV Charging, EV/HEV, PV/Solar Power, Wind Power, UL Listed

This high‑voltage DC contactor delivers strong power control. The ceramic seal keeps the parts safe. The 500A 1000V rating gives steady, reliable performance.

It works in very hot or very cold places. It stays stable in low or high humidity. It keeps the system safe with zero arc technology.

It meets global safety standards. It offers strong short‑circuit protection.

Pros Cons
  • Ceramic seal boosts durability and efficiency.
  • Magnetic blow-out tech ensures zero arc for safety.
  • Short circuit resistance adds extra protection.
  • Global approvals (UL, CE, etc.) guarantee quality.
  • High cost compared to standard relays.
  • Bulkier design may limit installation options.
  • Specialized use cases, not suitable for all applications.

Perfect For:

This high voltage DC contactor is perfect for professionals in EV charging, solar power, wind power, and energy storage systems. It’s built tough to handle extreme conditions and ensures safety with zero arc formation.

Ready to Purchase?

Buying Guide

High voltage relays are essential for powerful and safe electrical systems. Choosing the right one ensures reliable performance in demanding environments.

Buying the best high voltage relay is easy with our guide. We’ve done the research so you can make a confident choice.

Here’s what to consider:

  • Current and Voltage Rating:
    Match the relay’s amperage and voltage to your system’s needs. Higher ratings ensure safety and efficiency.

  • Temperature Resistance:
    Look for relays that work in extreme temperatures (-40°C to +85°C) for durable performance.

  • Safety Certifications:
    Choose relays with UL, RoHS, or Reach certifications for quality and compliance.

  • Sealing and Protection:
    Epoxy-sealed or ceramic-sealed relays prevent oxidation and arc leakage, ensuring longevity.

  • Application Specifics:
    Select relays designed for your use, like EV charging, solar power, or industrial systems.

  • Ease of Installation:
    Look for relays with clear instructions, universal mounting, or rail mounts for quick setup.

  • Durability:
    Choose relays with antioxidant features and magnetic blow-out technology for zero arcs and reliable operation.

  • Coil Voltage:
    Ensure the relay’s coil voltage matches your system’s power supply for efficient operation.

  • Contact Type:
    Decide between SPST, DPDT, or SPST-NO contacts based on your circuit needs.

  • Brand Reputation:
    Trust top-rated brands like HIITIO, Weasch, or Supco for proven reliability.

With these factors in mind, you’re ready to pick the best high voltage relay for your project. Let’s get started!