The Best 20 Amp Relay 12V of 2022 – Reviews & Buying Guide

After hours researching and comparing all models on the market, we find out the Best 20 Amp Relay 12V of 2022. Check our ranking below.

2,409 Reviews Scanned

Rank No. #1

Gebildet JD1912 Car Relay Harness 12V 40A 4 Pin SPST 12AWG Harness Sockets with Color-Labeled Wires for Automotive Truck Van Motorcycle Boat (Pack of 2)

Brand new heavy duty SPST(Single Pole Single Throw) relays with color-labeled wires.
Minimum operating voltage 8V, corresponding minimum operating current is 100mA; Standard operating voltage 12V, corresponding standard operating current is 150mA.
Small size/Low power consumption/High contact voltage/ High sensitivity.
Contact Material: Ag Alloy / Contact Resistance: ≤ 100MΩ.
Life Expectancy Electrical: 100,000 Operation, Life Expectancy Mechanical: 10,000,000 Operation.

SaleRank No. #2

Nilight 50023R 5 Pack 30A Fuse Relay car Truck Socket kit-30A Switch Harness Set-12V DC 4-Pin SPST Automotive 14 AWG Hot Wires-Auto Switches & Starters S

Upgraded Version - Automotive relays built in fuse socket included 30A blade fuses with heavy duty 14AWG wires for main contact. No need of a separate fuse holder, saving space and money. Bosch style 4-Pin SPST (Single Pole Single Throw) Relay.
Mounting Design Feature - The interlocking mounting design of unique male and female slot on each socket edge, connect relays together and manage cables easily, offering clean and neat installation.
Easy Wiring - The relay sockets come with color-labeled wires for load/accessories convenient wiring. Black - Ground (85), Red - VDC (30), White - Trigger (86), Blue - Output N/O (87)
Wide Application - Widely used in car keys power control, over-load protection, trunk release, polarity change, power door lock/actuator control, change a low current output to high current, add ignition/accessory outputs, control motors/other electronics etc.
Set includes 5 relays, 5 relay harnesses, and 5 30A blade fuses.

Rank No. #3

4Pin 12V Relay with 30A Fuse,SPST Normally Open Car Relay with 14 AWG Harness,Universal Automotive Relay Car Accessories for Most Cars Trucks Motorcycles

⚡ Product Specifications: Number of Pins: 4 Pin, Contact Type: Normally Open. Contact Form: 1A, 1B, 1C, 1U, 2A. Contact Configuration: SPST. Rated Load: 1A: 30A-13.5VDC, 20A-27VDC, 1C: NO/NC 30A-13.5VDC 20A/15A-27VDC. Insulation Resistance: 100MΩ. Maximum Switching Voltage: 27VDC. Maximum Rated Switching Current: 30A.
⚡ Standard 4 Pin Relay: This car relay operates at 12VDC and uses American Standard 14AWG (red and blue) and 16AWG (black and white) all-copper wires, where the black wire is for ground (85), the red wire is for VDC (30), the white wire is for the trigger (86), and the blue wire is for the output N/O (87).
⚡ Reliable Construction: The relay is made of quality pure copper coil and silver alloy contacts, which are more conductive and sensitive, and can provide you with a safer and more stable output current with a long service life. The nylon material shell can work normally under harsh conditions and environment.
⚡ Upgraded Configuration: You'll receive a automotive relay that measures 2.03x1.40 inches with a built-in fuse socket so you don't need a separate fuse holder. In addition, it also comes with a 30A blade fuse that is more efficient at avoiding overcurrents, making the circuit safer and more reliable.
⚡ Universal 12V Relay: Our relay switch has a wide range of applications and is universal for most 12V models on the market. It can be used for overload protection, security system, power door lock/actuator control, control motors and other electronic equipment applications, very easy to use.

SaleRank No. #4

Nilight 50044R 5 Pack Waterproof 40/30 AMP Heavy Duty 12 AWG Tinned Copper Wires 5-PIN SPDT Bosch Style 12V Automotive Relay and Harness Set

12 V DC automotive waterproof relays (max 14 V). Note: 12 V and 14 V are coil voltages, they are not the voltage that triggers the switch
Premium quality: durable relay and harness socket with 5 wires; made from high-grade materials to ensure superior quality and long lifespan
Pre-wired Harness: Heavy duty 12/16 AWG wiring harness. Black - 16AWG Pin85, White - 16AWG Pin86, Red - 12AWG Pin30 Yellow - 12AWG Pin87a, and Blue - 12AWG Pin87
Enhanced Waterproof - The 5-Pin relays are tightly sealed with strong cap and seal ring, excellent performance of waterproof, dust proof and moisture proof, works well in any weather conditions
Package includes: 5 pack Waterproof Relay and Harness. 1x User manual

Rank No. #5

Relay 4016819 (Pack of 2) – 12VDC 20A 4-Pin Automotive Relay for Polaris RZR 570 900 1000 SxS Slingshot Ranger Sportsman - Direct OEM Replacement

Exact OEM Replacement: Directly replaces Polaris relay 4016819, ensuring seamless compatibility with RZR 570/900/1000, Slingshot, Ranger, and Sportsman models. Verify your original part number before purchase.
High-Performance 20A Capacity: Silver alloy contacts and 20A resistive load rating deliver reliable power for electrical systems, even under extreme conditions (-30°C to +100°C).
Ultra-Compact ISO Design: Plug-in 4 terminal fits tightly into cramped spaces, ideal for ATV/UTV Model.
Easy to Install: The 4016819 relay is designed for easy installation, with simple wiring and a compact size that fits easily into your vehicle's electrical system.
2-Pack Value: Includes two relays for backups or multi-vehicle use. Saves time and costs for DIY repairs.

Rank No. #6

irhapsody 5 Pack 40/30 AMP 12V DC Waterproof Relay and Harness - Heavy Duty 12 AWG Tinned Copper Wires, 5-PIN SPDT Automotive Relay

Never go beyond its capabilities. Try to stay 10 to 15% below what the rate is for
12-volt 5-prong relay. Excellent water-repellent and dustproof ability, but not using it in water
Be careful when inserting the relay into the socket. If you force it, you will bend the female connectors
Primary leads use 12 a.w.g tinned copper wire. Coil leads use 16 a.w.g
Nominal Coil Voltage: 12 V DC; Coil Power: 1.8 W; Coil Resistance: 80 Ω; Must Operate Voltage: 6~8 V DC; Must Release Voltage: 0.6~3.6 V DC; Maximum Applied Voltage: 15.6 V DC

Rank No. #7

irhapsody 4-PIN 40/30AMP 12V DC Waterproof Relay with Harness - Heavy Duty 12 AWG Tinned Copper Wires, 1 Pack SPST Automotive Relay

Never go beyond its capabilities. Try to stay 10 to 15% below what the rate is for
12-volt 4-prong relay. Excellent water-repellent and dustproof ability, but not using it in water
For the people whose relays are burning, please make sure you are making tight connections (especially on the load wires), read the specs on the item description, and ensure that the operating environment meets the safety requirements of the relay
Be careful when inserting the relay into the socket. If you force it, you will bend the female connectors
Thick 12 gauge wire for the load terminals. Easy to install just make sure you follow the wiring diagram. Works for both positive and negative activation

SaleRank No. #8

irhapsody 4-pin 40/30AMP 12V Relay Kit, Spst 12-Volt 6-Pack Automotive Relay, with Interlocking Harness Socket Holder and Heavy-Duty Pigtail

Never go beyond its capabilities. Try to stay 10 to 15% below what the rate is for
12-volt 4-prong relay, Primary leads use 12 a.w.g tinned copper wire. Coil leads use 16 a.w.g
Package includes: 6 relays + 6 relay sockets with wires
Nominal Coil Voltage: 12vdc; Coil Power: 1.8W; Coil Resistance: 80Ω
Must Operate Voltage: 6~8vdc; Must Release Voltage: 0.6~3.6vdc; Maximum Applied Voltage: 15.6vdc

Rank No. #9

Automotive Purpose Relays 303-1AH-C-R1-U01-12VDC SPNO 20A 12VDC for Polaris RZR Slingshot Ranger Sportsman Cooling Fan Relay (4 Pack)

Part Number 303-1AH-C-R1-U01 12VDC
Ultra Micro ISO Automotive relay.
High Temperature withstand up to 125°C ambient
High Rating up to 20A. 12 VDC.
General purpose applications for automotive in power.

Rank No. #10

95220-M2000 12VDC 20A 4 Pins Multi Purpose Relay Suitable for Air Conditioning Headlight Fan Supersession RTT7113 MB183865 JQ126-AER

Efficient Power Handling: With high contact voltage and a large coil capacity, our relay is equipped to handle high current applications with ease. Its high sensitivity allows for efficient power management and precise operation.
Durable and Reliable: The high-quality coil of our relay is composed of a single strand or multiple smaller strands, ensuring good conductivity and extended wear resistance. It can withstand demanding conditions and deliver reliable performance.
Versatile Applications: This relay has a universal application and can be used in a variety of automotive functions, including 12 Volt Air conditioning, Headlight, and Fan, providing convenience and compatibility.
Quick and Easy Installation: Save time and reduce costs with our 4-pin relay, which features an easy installation process and direct plug-in design.
Package Inclusion: Each package includes 1 pack of electrical relays, providing you with the necessary components for your automotive system upgrades.

Last update on 2025-04-08 / Affiliate links / Images from Amazon Product Advertising API

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The Best 20 Amp Relay 12V of 2022 – Reviews & Buying Guide

How Do You Buy The Best 20 Amp Relay 12V?

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