Best Master Relays in 2026

Daisy
Last Updated: Feb 5, 2026

At a Glance: Our Top Picks for Master Relays

irhapsody 5 Pack 40/30 AMP 12V DC Waterproof Relay and Harness - Heavy Duty 12 AWG Tinned Copper Wires, 5-PIN SPDT Automotive Relay
#TOP1
Irhapsody 5 Pack 40/30 Amp 12V Dc Waterproof
9.8
PM SCORE
Lisle 69300 Master Relay Test Jump Set, One Size, Factory
#TOP2
Lisle 69300 Master Relay Test Jump Set, One
9.8
PM SCORE
Nilight 50003R Automotive Set 5-Pin 30/40A 12V SPDT with Interlocking Relay Socket and Wiring Harness-5 Pack, 2 Years Warranty
#TOP3
Nilight 50003R Automotive Set 5-Pin 30/40A 12V Spdt
9.8
PM SCORE

* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.

Summary of the Best Master Relays of 2026

Market Overview
Master Relays Reviewed
  • Reviews Analyzed: 10450 Items
  • PM Avg. Rating: 6.6 / 10
16 Products Evaluated
  • Highest Price: $179.77
  • Lowest Price: $8.23
  • Avg. Price: $27.65

Irhapsody 5 Pack 40/30 Amp 12V Dc Waterproof Relay And Harness - Heavy Duty 12 Awg Tinned Copper Wires, 5-Pin Spdt Automotive Relay

IRHAPSODY
IY-5PINRELAY-5
7.85 X 1.60 X 1.70 Inches
1.10 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
IRHAPSODY® Store 9.93

Features

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

Lisle 69300 Master Relay Test Jump Set, One Size, Factory

LISLE
69300
4.00 X 2.30 X 1.50 Inches
3.10 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Includes 8 Jumpers to fit most popular relays

Includes Test Lead Kit for easily and securely connecting Relay Test Jumpers to a multimeter

Terminal Leads with switch, fuse and power options provide easy access to check current or voltage on many fuses and relays used on vehicles today

Also allows testing of relay configurations not covered by eight Relay Test Jumpers, like Volkswagen, BMW and other European vehicles

Relay Puller Pliers easily remove electrical relays; weorks without piercing wires

Nilight 50003R Automotive Set 5-Pin 30/40A 12V Spdt With Interlocking Relay Socket And Wiring Harness-5 Pack, 2 Years Warranty

NILIGHT
NI-RE05
5.00 X 2.00 X 5.00 Inches
0.50 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

High switching capability: Normally open 40A/14V DC and normally close 30A/14V DC. Suitable for Nilight LED light bar wiring harness kit

Premium quality: Durable relay and harness socket with 5 wires; Made by high-grade materials to ensure superior quality and long lifespan

Male-female slot design: Unique male-female slot design, easy to connect the relay with harness socket, clean and neat after installation

Easy wiring: The relay sockets come with different colors for loads/accessories, simple and convenient wiring

Package include: 5 x relay and 5 x relay socket with wires.Fit type: Universal fit

Innovative Products Of America #9038A Relay Bypass Switch Kit With Amp Loop

INNOVATIVE PRODUCTS OF AMERICA
9038A
7.00 X 7.00 X 1.00 Inches
0.25 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
eToolDirect 9.84

Features

Controls relay circuit independent of “key on” systems

Run all automotive, 12V DC motors with a push of a switch

Simplifies fuel injection testing

Use in conjunction with clamp-on Amp Probes and Lab Scopes

Operating range: Up to 20 amp continuous, 30 amp surge (12V); covers most makes and models

Cg Solid State Relay Ssr-25Da Dc To Ac Input 3-32Vdc To Output 24-480Vac 25A Single Phase Plastic Cover…

CGELE
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Sumiempaques, Corp. 5.05

Features

♥【What You Get】Each package With 2 mini bag of thermal grease which apply on the back of the SSR to make the temperature dissipate faster.

♥ Product Name: solid state module relay SSR-25DA, 3-32VDC/24-480VAC ; Current & Frequency:25A,50/60Hz.

♥ Total size (approximate):58 x 45 x 32mm/2.3" x 1.8" x 1.26" (l*w*t); Net weight:116g; Material:metal, plastic, electronic parts.

♥ SSR Application: with a switch no spark, no noise,high switching speed,anti-corrosion,moisture-proof,anti-vibration,long life.high reliability,electromagnetic compatibility and other characteristics.

♥ Solid state relay ideal for automatic process control application, a must component for temperature controller and other machinery control system.

Cg Solid State Relay Ssr-25Dd Dc To Dc Input 3-32Vdc To Output 5-240Vdc 25A Single Phase Plastic Cover

CGELE
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
CGELE Official Store 9.97

Features

♥【What You Get】Each package With 2 mini bag of thermal grease which apply on the back of the SSR to make the temperature dissipate faster.

♥ Product Name: solid state module relay SSR-25DD, 3-32VDC/5-220VDC ; Current & Frequency:25A,50/60Hz.

♥ Total size (approximate):58 x 45 x 32mm/2.3" x 1.8" x 1.26" (l*w*t); Net weight:116g; Material:metal, plastic, electronic parts.

♥ SSR Application: with a switch no spark, no noise,high switching speed,anti-corrosion,moisture-proof,anti-vibration,long life.high reliability,electromagnetic compatibility and other characteristics.

♥ Solid state relay ideal for automatic process control application, a must component for temperature controller and other machinery control system.

5 Pin 12V Relay 12V 30A Relay Multi Purpose Automotive Relay Black Starter Relay Car Heavy Duty Relay For Car Motor Automotive Replacement Accessories (8 Pieces)

TALLEW
TALLEW-STARTER-0145
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Yungmaii 9.92

Features

Product number: The product is not suitable for all models and brands, please check the specifications carefully to confirm whether it is applicable before purchasing,The product model is JD1914-12V-30A, 12V 30A SPDT 5 Pin Relay

Sufficient for using: 5 pin! 5 pin! 5 pin! you will receive 8 pieces 12V 30A 5 pin relays, the size is about 1.02 x 0.94 x 0.63 inch/ 2.6 x 2.4 x 1.6 cm, enough quantity can meet your daily use and replacement, you can share them with your friends and family who need them, these relays are 5 plug please note when ordering

Stable for long time use: the black shell of the 12V car relay is made of nylon material which is electrical insulation, the pin is made of brass, which can withstand cold and hot condition, stable and reliable, not easy to break, deform or rust, applicable for a long time

Specifications information: 30A 12V Relay can be applied to control electrical circuits for components on a vehicle that have a high amperage load, such as headlights, fuel pumps and cooling fans

Extensive usages: the automotive relay is practical and convenient, can be applied to car tail light, engine compartment, electric cooling fans, electric water pumps, electric fuel pumps, shaved door handles solenoids, trunk solenoids and other equipment

Irhapsody 12V 30A 5-Pin Spdt Multi-Purpose Starter Relay

IRHAPSODY
5PIN-12VMP8P
1.50 X 0.94 X 0.66 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
IRHAPSODY® Store 9.93

Features

Plug-and-play style

Compact 12-volt 5-prong relay

Stay within its capabilities. Try to stay 10 to 15% below what the rate is for

Works on lawnmowers, Harleys, and lots of cars

Tiooka Waterproof Relay 40/30 Amp 12V Dc 5-Pin Heavy Duty 12 Awg Tinned Copper Wires Spdt Automotive Relays Kit Marine Relays Universal For Boat, Truck, Van, Motorcycle

TIOOKA
TK-15
3.14 X 3.14 X 1.57 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Tiooka 5.55

Features

【Waterproof and Dustproof Design】: Tiooka Waterproof Relay has a sealed and waterproof design, making it perfect for use in harsh environments such as boats, trucks, vans, and motorcycles. It is also dustproof, ensuring that it functions properly even in dusty conditions

【Heavy Duty Construction and 5-Pin Design】: Tiooka Waterproof Relay is built to last, with a heavy-duty construction that can withstand the rigors of daily use. It is made of high-quality materials that ensure its durability and reliability.5-pin design that provides greater functionality and flexibility in your electrical system

【12 AWG Tinned Copper Wires】: Tiooka Waterproof Relay comes with 12 AWG tinned copper wires, which provide a secure and reliable connection for your electrical system. These wires are also resistant to corrosion, ensuring that they will last for years to come

【Reliable Operation】: Tiooka Waterproof Relay is designed to operate reliably even in challenging environments. It is resistant to temperature changes, vibration, and shock, which helps to ensure that it will work consistently and accurately

【Universal Compatibility】: Tiooka Waterproof Relay is compatible with a wide range of vehicles and devices, including boats, trucks, vans, motorcycles, and more. This makes it a versatile and convenient solution for anyone looking to add reliability and functionality to their electrical system

Aopin 3 Pin 22 Ohm Refrigerator Ptc Starter/Start Relay Compressor Starter Relay Replacement Part For Car Refrigerator, Portable Freezer, Beverage&Wine&Beer Cooler, Air-Conditioning Compressor 1 Pcs

AOPIN
B21030201AP0003
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Aopin-US 8.46

Features

👌Refrigerator Start Relay Resistance: 22 Ohm, Pin Number: 3 Pin, Overall Size: 29mm X 21mm X 28mm (1.14" X 0.83" X 1.10"). Metal Sheet Width: 6.3mm / 0.25".

👌The Compressor PTC Starter Relay Suitable for Maintenance and Assembly Of Refrigerators / Freezers / Air-conditioning Compressor Of Various Brands. Such As The Most Car Refrigerator, Portable Freezer, Beverage & Wine Coolers, Beer Fridge.

💰【Save Money and Time】Our refrigerator compressor start relay can prevent the compressor from damaging the compressor due to excessive current and temperature rise when starting. It Is Very Convenient And Quick To Install, Avoid frequent maintenance or replacement of compressors. And Keeping The Food / Wine Fresh & Delicious.

👌Note: Please Check The Compressor PTC Start Relay Before Buying, And Ensure That It Is Consistent With The Original Electrical Parameters!

👌Start Relay For Refrigerator Are Made Of Durable Premium Quality Materials, The Internal PTC Thermistor Is Sensitive And Responds Quickly, Effectively Guarantee The Working Safety Of Refrigerator Compressor, Lightweight & Reliable In Performance. With It, You Can Master The Cheap Way To Repair Repair The Refrigerator.

Aopin 2 Pin 12 Ohm Refrigerator Ptc Starter/Start Relay Compressor Starter Relay Replacement Part For Car Refrigerator, Portable Freezer, Beverage&Wine&Beer Cooler, Air-Conditioning Compressor 1 Pcs

AOPIN
B21030201AP0003
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Aopin-US 8.36

Features

👌Refrigerator Start Relay Resistance: 12 Ohm, Pin Number: 2 Pin, Overall Size: 29mm X 21mm X 28mm (1.14" X 0.83" X 1.10"). Metal Sheet Width: 6.3mm / 0.25".

👌The Compressor PTC Starter Relay Suitable for Maintenance and Assembly Of Refrigerators / Freezers / Air-conditioning Compressor Of Various Brands. Such As The Most Car Refrigerator, Portable Freezer, Beverage & Wine Coolers, Beer Fridge.

💰【Save Money and Time】Our refrigerator compressor start relay can prevent the compressor from damaging the compressor due to excessive current and temperature rise when starting. It Is Very Convenient And Quick To Install, Avoid frequent maintenance or replacement of compressors. And Keeping The Food / Wine Fresh & Delicious.

👌Note: Please Check The Compressor PTC Start Relay Before Buying, And Ensure That It Is Consistent With The Original Electrical Parameters!

👌Start Relay For Refrigerator Are Made Of Durable Premium Quality Materials, The Internal PTC Thermistor Is Sensitive And Responds Quickly, Effectively Guarantee The Working Safety Of Refrigerator Compressor, Lightweight & Reliable In Performance. With It, You Can Master The Cheap Way To Repair Repair The Refrigerator.

Aopin 1/5Hp (150W) Refrigerator Electromagnetic Starter/Start Relay Compressor 220V Electromagnetic Starter For Car Refrigerator, Portable Freezer, Beverage Cooler, Air-Conditioning Compressor 1 Pcs

AOPIN
B21030201AP0003
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Aopin-US 8.21

Features

👌Refrigerator Start Relay Power: 1/5HP (150W), Overall Size: 30mm X 24mm X 32mm (1.18" X 0.94" X 1.26"). Metal Sheet Width: 6.3mm / 0.25". Voltage: 220V.

👌The Compressor Starter / Start Relay Suitable for Maintenance and Assembly Of Refrigerators / Freezers / Air-conditioning Compressor Of Various Brands. Such As The Most Car Refrigerator, Portable Freezer, Beverage & Wine Coolers, Beer Fridge.

💰【Save Money and Time】Our refrigerator compressor start relay can prevent the compressor from damaging the compressor due to excessive current and temperature rise when starting. It Is Very Convenient And Quick To Install, Avoid frequent maintenance or replacement of compressors. And Keeping The Food / Wine Fresh & Delicious.

👌Note: Please Check The Compressor Start Relay Before Buying, And Ensure That It Is Consistent With The Original Electrical Parameters!

👌Start Relay For Refrigerator Are Made Of Durable Premium Quality Materials, The Coil Is Wound Neatly, Good Electromagnetic Performance, Effectively Guarantee The Working Safety Of Refrigerator Compressor, Lightweight & Reliable In Performance. With It, You Can Master The Cheap Way To Repair Repair The Refrigerator.

Aopin 4 Pin 22 Ohm Refrigerator Ptc Starter/Start Relay Compressor Starter Relay Replacement Part For Car Refrigerator, Portable Freezer, Beverage&Wine&Beer Cooler, Air-Conditioning Compressor 2 Pcs

AOPIN
B21030201AP0004
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING

Features

👌Refrigerator Start Relay Resistance: 22 Ohm, Pin Number: 4 Pin, Overall Size: 29mm X 21mm X 28mm (1.14" X 0.83" X 1.10"). Metal Sheet Width: 6.3mm / 0.25".

👌The Compressor PTC Starter Relay Suitable for Maintenance and Assembly Of Refrigerators / Freezers / Air-conditioning Compressor Of Various Brands. Such As The Most Car Refrigerator, Portable Freezer, Beverage & Wine Coolers, Beer Fridge.

💰【Save Money and Time】Our refrigerator compressor start relay can prevent the compressor from damaging the compressor due to excessive current and temperature rise when starting. It Is Very Convenient And Quick To Install, Avoid frequent maintenance or replacement of compressors. And Keeping The Food / Wine Fresh & Delicious.

👌Note: Please Check The Compressor PTC Start Relay Before Buying, And Ensure That It Is Consistent With The Original Electrical Parameters!

👌Start Relay For Refrigerator Are Made Of Durable Premium Quality Materials, The Internal PTC Thermistor Is Sensitive And Responds Quickly, Effectively Guarantee The Working Safety Of Refrigerator Compressor, Lightweight & Reliable In Performance. With It, You Can Master The Cheap Way To Repair Repair The Refrigerator.

Aopin 3 Pin 22 Ohm Refrigerator Ptc Starter/Start Relay Compressor Starter Relay Replacement Part For Car Refrigerator, Portable Freezer, Beverage&Wine&Beer Cooler, Air-Conditioning Compressor 2 Pcs

AOPIN
B21030201AP0004
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Aopin-US 8.36

Features

👌Refrigerator Start Relay Resistance: 22 Ohm, Pin Number: 3 Pin, Overall Size: 29mm X 21mm X 28mm (1.14" X 0.83" X 1.10"). Metal Sheet Width: 6.3mm / 0.25".

👌The Compressor PTC Starter Relay Suitable for Maintenance and Assembly Of Refrigerators / Freezers / Air-conditioning Compressor Of Various Brands. Such As The Most Car Refrigerator, Portable Freezer, Beverage & Wine Coolers, Beer Fridge.

💰【Save Money and Time】Our refrigerator compressor start relay can prevent the compressor from damaging the compressor due to excessive current and temperature rise when starting. It Is Very Convenient And Quick To Install, Avoid frequent maintenance or replacement of compressors. And Keeping The Food / Wine Fresh & Delicious.

👌Note: Please Check The Compressor PTC Start Relay Before Buying, And Ensure That It Is Consistent With The Original Electrical Parameters!

👌Start Relay For Refrigerator Are Made Of Durable Premium Quality Materials, The Internal PTC Thermistor Is Sensitive And Responds Quickly, Effectively Guarantee The Working Safety Of Refrigerator Compressor, Lightweight & Reliable In Performance. With It, You Can Master The Cheap Way To Repair Repair The Refrigerator.

Aopin 4 Pin 12 Ohm Refrigerator Ptc Starter/Start Relay Compressor Starter Relay Replacement Part For Car Refrigerator, Portable Freezer, Beverage&Wine&Beer Cooler, Air-Conditioning Compressor 2 Pcs

AOPIN
B21030201AP0004
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Aopin-US 8.31

Features

👌Refrigerator Start Relay Resistance: 12 Ohm, Pin Number: 4 Pin, Overall Size: 29mm X 21mm X 28mm (1.14" X 0.83" X 1.10"). Metal Sheet Width: 6.3mm / 0.25".

👌The Compressor PTC Starter Relay Suitable for Maintenance and Assembly Of Refrigerators / Freezers / Air-conditioning Compressor Of Various Brands. Such As The Most Car Refrigerator, Portable Freezer, Beverage & Wine Coolers, Beer Fridge.

💰【Save Money and Time】Our refrigerator compressor start relay can prevent the compressor from damaging the compressor due to excessive current and temperature rise when starting. It Is Very Convenient And Quick To Install, Avoid frequent maintenance or replacement of compressors. And Keeping The Food / Wine Fresh & Delicious.

👌Note: Please Check The Compressor PTC Start Relay Before Buying, And Ensure That It Is Consistent With The Original Electrical Parameters!

👌Start Relay For Refrigerator Are Made Of Durable Premium Quality Materials, The Internal PTC Thermistor Is Sensitive And Responds Quickly, Effectively Guarantee The Working Safety Of Refrigerator Compressor, Lightweight & Reliable In Performance. With It, You Can Master The Cheap Way To Repair Repair The Refrigerator.

#TOP16

Cgele Solid State Relay Ssr-40Aa Ac To Ac Input 70-250Vac To Output 24-480Vac 40A Single Phase Plastic Cover

CGELE
SSR-40AA
0.00 X 0.00 X 0.00 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
CGELE Official Store 9.97

Features

♥【What You Get】Each package With 2 mini bag of thermal grease which apply on the back of the SSR to make the temperature dissipate faster.

♥ Product Name: solid state module relay SSR-40AA, 70-250VAC/24-480VAC ; Current & Frequency:25A,50/60Hz.

♥ Total size (approximate):58 x 45 x 32mm/2.3" x 1.8" x 1.26" (l*w*t); Net weight:116g; Material:metal, plastic, electronic parts.

♥ SSR Application: with a switch no spark, no noise,high switching speed,anti-corrosion,moisture-proof,anti-vibration,long life.high reliability,electromagnetic compatibility and other characteristics.

♥ Solid state relay ideal for automatic process control application, a must component for temperature controller and other machinery control system.

Top 10 master relays Brands on Amazon

Here is the list of top-rated brands that were evaluated by PM.

Brand Count
Aopin 6
Cgele 3
Irhapsody 2
Innovative Products Of America 1
Lisle 1
Nilight 1
Tallew 1
Tiooka 1

Top 10 master relays Brands Pie Chart


We've carried out a comprehensive analysis of 10,450 reviews on master relays, using our selection criteria to identify the best options in the categories. Our findings reveal that most customers typically select master relays priced around $27.65, with top brands including and

Our team of expert editors reviewed these high-quality items and handpicked the top 16 master relays for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the categories category. These include and .

We are dedicated to assisting our users in finding the right relays Products based on their needs, saving them considerable time when choosing which master relays to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.