Are you trying to find automotive microprocessor relays among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!
We investigated and evaluated a number of the top-selling automotive microprocessor relays on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 24 hours of research and did 68 automotive microprocessor relays tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!
An overview of our top picks
Table of contents
The best automotive microprocessor relays you can buy today
- SRL500 handles 500 Amps continuous at 12V and 700 Amps Surge. Microprocessor-controlled smart relay does not create a voltage drop to the second battery like conventional isolator.
- Eliminates multiple battery drain as it stops battery bank from getting power from each one and extends battery life. Prevents the equipment from discharging the main battery when it is operated while the engine is off.
- Once the main battery reaches 13.2V, the smart relay connects two batteries. Once the system drops below 12.7V, it disconnects two batteries.
- The dual sensing feature allows charging both ways if auxiliary battery is charged by external power source. A waterproof manual override switch allows you to connect two batteries with the push of a button for 60 seconds.
- Excellent waterproof performance, high quality in any weather conditions. Two 1/0AWG copper ring terminals and heat shrink tubing are included for easy installation.
- The XSBi series of isolators primarily monitors the main starter battery voltage. Once the starter battery voltage reaches 13.2 volts, the solenoid automatically connects the auxiliary battery to the charging system.
- These smart battery Isolators also help lengthen the life of your starter battery. When two-vehicle batteries are wired in parallel they have a tendency to charge and drain one another.
- 80 Amps at 12V Continuous Power Handling. 150 Amps Surge Power Handling
- Switching Power: 10 - 16 VDC. Draws Less Than 1 Amp When On
- Dimensions: 2-7/8"W x 1-3/8"D x 3"H
- Easy To Use - The tester will automatically detect the pin position, the release time of the action, and the consistency of the relay in each test phase. If the tester lights up the green LED light, the relay is normal; if the red LED light is on, the relay is abnormal.
- To Operate - First, clip the alligator clip of the tester to the car battery, the black clip on the negative pole, and the red clip on the positive pole. When the red LED light is on, it means the tester can start the test. Check the relay before testing. Select the appropriate socket according to the pins, insert the relay into sockets, press the "Test" button, and the tester will automatically detect the pin position of the unknown relay.
- Fitment - Suitable for most general-purpose automotive relays on the market. When testing, it needs to be connected to the car's 11V-15V battery. The car battery must be a 12V battery, and the battery voltage must be between 11V-15V; 2. The applicable coil resistance is preferably above 20 ohms.
- Compact - Our automotive Relay tester is small and easy to carry around for on-the-go jobs or for easy storage. Its compact design allows easy use no matter where you are.
- Simple and Quick - With our patented design this relay tester will give you the results you need quickly and easily.
- PA66 Material: This 5Pin relay shell is made of PA66 material, with stable insulation, high quality flame retardant casing. The structure is compact and durable, not easy to break or deform, and helps you adjust and transform circuits stably.
- Wide Application: The 5-pin relay suitable for automotive equipment equipped with 12V DC power supply, such as car audio systems, security systems, compressors. The relay box can be a nice replacement for 582195, 582472, 582473, 584416, 586147 and 586224, offering you a pleasant using experience.
- Reliable Performance: This relay built-in pure copper enameled wire, lower temperature rise and stronger suction power. Silver alloy contacts have good thermal stability and high temperature resistance. The plug has strong conductivity, effectively resists contact sticking, and has a long service life.
- Sufficient Quantity: The package comes with 4 pieces of automotive replacement equipment relays, enough to meet your using and replacing demands in daily life, bringing you lots of convenience.
- Plug and Play: Compatible with the most universal 12V 5-Pin automotive relay with a 40A switching capability. Easy to process your demand. Please check the dimensions and the direction of the poles carefully before ordering to avoid buying the incorrect product.
- 12VDC (14V max) waterproof 5-pin SPDT (Single Pole Double Throw) pure copper coil relay with 40A/30A high switching capability.
- The relay harness is encapsulated with a rubber ring, which is waterproof and dustproof. Fixed metal holes for easy installation.
- Pure copper core cable, tinned brass pins, with higher conductivity and more stable performance. 3*14 AWG and 2*18 AWG, Length: 5 inches.
- Wire Sizes: White - Ground (85), Blue - VDC (30), Black - Trigger (86), Red - Output N/C (87a) and Yellow - Output N/O (87).
- The relay kit is made of high-grade flame-retardant materials to ensure safe use and long service life.
- Quality Materials: The shell is made of PA66 material and pure copper enameled wire, which has good thermal conductivity, can dissipate heat faster and reduce temperature rise. The compact and repairable structure of the sloped trim relay will hardly break or deform, helping you adjust and switch circuits stably.
- Plug and Play: Compatible with the most universal 12V 5-Pin automotive relay with a 40A switching capability. Easy to process your demand. Please check the dimensions and the direction of the poles carefully before ordering to avoid buying the incorrect product.
- Wide Application: Outboard tilt system application and all automotive devices equipped with a 12-volt dc power source car sound systems, security systems, compressor, air.
- Nice Replacement for Many Relays: The electrical relay box can be a nice replacement for 582195, 582472, 582473, 584416, 586147 and 586224, offering you a pleasant using experience.
- Sufficient Quantity for Using: The package comes with 4 pieces of automotive replacement electrical system relays, enough to meet your using and replacing demands in daily life, bringing you lots of convenience.
- 【Superior Quality】Waterproof relays are made with durable composite material and copper coils for conductivity and stable voltage.
- 【Weatherproof Design】The 5-pin relay is sealed with a silicone ring, making it waterproof and resistant to shorts and corrosion. Perfect for boats, car, off-road vehicles, and family circuit work.
- 【Premium Harness】Kalmaegee heavy-duty 14/18 AWG wiring harness ensures stable circuit operation, with 5 different colored wires for added safety and convenience.
- 【Versatile 5-Pin Relay】Can be used as normally open or normally closed relays, with a compact size that's easy to store and use when needed.
- 【Wide Application】Our relays are perfect for automotive tail lights, electric cooling fans, starters, headlights, horns, fog lights, rear window defrosters, and more.
- Flame-retardant Shell: This car starter relay is made of flame-retardant shell material and has good flame-retardant properties. This means that in the event of a fire or other dangerous situation, it can effectively reduce the possibility of fire spread and improve the safety of vehicles and passengers.
- DC 12V Voltage: This is the voltage standard used by most cars, so it has broad applicability. This relay is suitable for automotive systems powered by DC 12V power supply.
- 30A Current Rating: This relay has a current rating of 30A, which means it can handle a maximum current load of 30 amps. This makes it suitable for many high-power devices such as car starter motors.
- Reliability and Durability: It can withstand long-term, frequent use and maintain stable performance in a variety of environmental conditions. This car starter relay is made of high-quality materials and has good reliability and durability.
- Packing Content: You will receive two five-pin DC 12V 30A car starting relays. If you have any usage problems, please feel free to contact us directly and we will solve the problem for you within 24 hours on working days.
- Type: 4Pin Relay, 12VDC (14V Max) , SPST (Single Pole Single Throw) Relay with 120A High Switching Capability. Perfect for Split Charging or Various Automotive vehicles such as cars, trucks, RVs, boats, Campers, RVs and other vehicles needing a high power.
- Superior Quality: This relay consists of nylon flame retardant shell with pure copper inner core. High quality material is durable and has the characteristics of heat resistance, corrosion resistance and strong electric conductivity.
- Pure Copper Coil: Internal use of pure copper coil, conductive performance is strong, low loss rate. Agsno2 composite silver contact, effective resistance to contact bonding, long service life. Precision design makes electricity more secure.
- Key Functions: The relay acts as a current switch by converting a small current output into a large current. The advent of relays also extended the life of other automotive configurations. With 120A capacity, our relays can easily handle high current applications. This is a perfect make or break relay for your car.
- Package Includes: 1x 120 Amp Split Charge relay.
- Easy Installation: The relay with wire harness is designed for easy installation, making it convenient for users to set up in various complex installation environments.
- Secure Backside Fixation: The relay comes with a secure backside fixation feature, ensuring stability and reliability even in demanding conditions.
- Materials: Both the relay and wire harness are made of high-grade flame-retardant materials, guaranteeing a longer lifespan and enhanced safety during operation.
- 12VDC (Max 14V) 5-Pin SPDT Relay: The relay operates at 12VDC (with a maximum of 14V) and features a 5-pin Single Pole Double Throw (SPDT) configuration. This configuration allows
- Two years warranty： If you have any questions in the use of the product, please contact us, we will reply within 24 hours
- [Reliable Quality] The black shell is made of nylon material, which is electrical insulation, and the pin is made of brass, which can withstand cold and hot condition. Very durable and sturdy in use, no deformation and rust, perfectly made for long-term use.
- [Specification] The size is 1.41 x 0.94 x 0.63 inch/ 3.6 x 2.4 x 1.6 cm approximately. Our 30A 12V relay can be used to control the circuits of components with high amperage loads on vehicle, such as headlights, fuel pumps and cooling fans.
- [Easy to Use] Our motor relayis suitable for normal antomobile to use, simple operation, you only need to connect the relay and wire, no need other tools, very convenient and easy to use and replace, allow components work normally.
- [Application] Our product 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 more equipment.
- [Customer Service] You will receive 4 pieces 12V 30A 5 pin relays. We offer 12-month warranty for every order, you can buy with confidence. If you have any questions and concerns, please feel free to let us know, our team will respond asap!
- Plug-and-play style
- The relay housing is made of fire-retardant material
- Universal OEM replacement relay. Works for a car alarm, ABS, AC, remote start, headlight, LED light, fan, Speakers, fuel pump, Air Conditioning or upgraded horn
- It is used to switch single- or dual-speed fan motors. Compact, fully enclosed design for powerful heating and cooling applications
![ONLINE LED STORE True MODS 1 Pack 5-Pin 12V Bosch Style Waterproof Relay Kit [Harness Socket] [12 AWG Hot Wires] [SPDT] [30/40 Amp] 12 Volt Automotive Marine Relays for Boats Auto Fan Cars](https://m.media-amazon.com/images/I/51gr46HT3vL.jpg "The 8 Best automotive microprocessor relays of %currentyear% 76")
- User Manual available for download under Product Information Details
- Waterproof construction & heavy duty 12AWG wires for the main contact.
- Bosch style 5-Pin SPDT (Single Pole Double Throw) Relay.
- 12VDC (14V Max) and 40A/30A High Switching Capability.
- Wire Specifications: Black - Ground (85), Red - VDC (30), White - Trigger (86), Yellow - Output N/C (87a), and Blue - Output N/O (87).
- 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.
- Fits: Suitable for most models in the market. such as Chery, BYD, Volkswagen, Audi, Honda, BMW X3, Lexus, Mercedes, Chevrolet, Buick, Lincoln, Geely, etc。If your model is not in the example, don't worry, please contact me via email
- Easy To Installation: Offering Wiring Diagram To Ensure Easy And Right Installation.And Professional Installation Is Highly Recommended ! For Your Safety And The Safety Of Others, You Should Let Professional Technicians Who Specialized In Electricity Install This Part.
- 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. Please carefully butt each correct wire during installation
- High Quality Material：Made From High-Quality Materials, Good Bending Performance, Melting Resistance And Excellent Electrical Conductivity.Wide Range Of Use, Can Be Used In Automotive Setup, Seat Warming, Vehicle Lighting System, Car Sound System And Various Other Applications.
- Quality Service: If You Have Any Questions During The Purchase Process, You Can Contact Us By Email. Before Purchasing, If You Don'T Know Whether It Is Suitable For Your Car, Please Contact Us First To Avoid Causing You Trouble.Note:can not be used directly in water, can not be used directly in water, can not be used directly in water!!!
- Designed to quickly test the condition of your relay out of the vehicle
- Full self-contained, no need to clamp cables onto the vehicles battery
- Test results provide good/bad indication; green LED pass, red LED fail. Accurately check the relay coil for circuit breaks, and switch contacts. Used to test the most common 12 volt 4 and 5 pin relays on today vehicles
- Compact design, nothing additional needed, and super easy to use
- Requires 4 AA batteries (included)
- ✅ WHAT YOU GET: 2 x 40/30 AMP 12V DC 4-Pin SDPT Waterproof Relay and Harness. Heavy-duty 14 AWG Tinned Copper Wires were applied for Pin 87 Blue, Pin 30 Red. Heavy-duty 16AWG Tinned Copper Wires were applied for Pin 85 Black, Pin 86 White. The length of the wire is 5.1 inches. This relay can use for car lights, fog lamps, wipers, starters, fans, speakers, traction control systems, etc
- ✅ SPECIFICATIONS: Operating Voltage: 12V DC (Max 14V DC) and 40 AMP / 30 AMP High switching capability. Nominal Coil Voltage: 12V 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. Contact Current Rating: NO – 40A/14V DC, NC: 30A/14V DC
- ✅PLUG AND PLAY: Compatible with the most universal 12V 4-Pin automotive relay with a 40A switching capability. But to install this relay you need to know a little about electricity. Please make sure you follow the wiring diagrams in the photo that we attached to the product page. The Relay works for both positive and negative activation. For your safety and the safety of others, you should let professional technicians who specialized in electricity install this part.
- ✅ PREMIUM QUALITY: This relay is designed excellently waterproof and dust-proof. Completely sealed and protected so you can rest assured fully to install it in wet and water-prone areas. Our 4-Pin 40/30 AMP 12V DC SDPT Waterproof Relay is made from durable high-quality materials (ABS plastic, copper, and metal), and all are well-tested carefully by the manufacturer. Ensures long-lasting and high performance.
- ✅ MONEY-BACK GUARANTEE: MQparts is especially interested in customer experience. If for any reason you're not completely satisfied, you can ask for a replacement or FULL refund, no questions asked.
- 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
- Package Included: 4 pcs car relay 5 pin 12V 40 amp, enough to meet your using and replacing demands in daily life, bringing you lots of convenience. Reliable workmanship for lasting service.
- High Quality: The car relay is made of premium material, compact and serviceable in structure, hardly breaking or deforming, helping you adjust and transform circuit stably.
- Features: Pure copper enameled wire, lower temperature rise, stronger suction. Effective anti-contact bonding, long service life. Good thermal stability, heat resistance, corrosion resistance and meltability.
- Easy to Use: Use the car relay, just connect it with the wire, plug it into the circuit, easy to install and replace, does not take much time, easy to carry. High capacity, 40A shunt relay for any 12V application.
- Application: The car relay can be used to install cooling fans, fuel pumps, water pumps, horns, and so on. Using this kit will eliminate high voltage drops in the lines allowing your components to work properly.
- 12V waterproof 5-Pin SPDT Relay Excellent waterproof and dustproof ability, high quality in any weather conditions
- 12V 5-Pin SPDT Relay Pin Specifications: Ground (85), VDC (30), Trigger (86), Output N/C (87a), and Output N/O (87)
- SPDT Relay with 40A/30A High Switching Capability,it has both normally open and normally closed terminals, terminal 87A is powered when the relay is inactive and switches the power to terminal 87 when the relay is activated
- 12v relays can operate with anywhere between 9v and 14v,Very suitable for 12V automotive, marine, and machine circuits
- These 12V 5-pin relays are rated to handle 30A on normally closed pin 87a and 40A on normally open pin 87
How to choose a good automotive microprocessor relays
Does the idea of finding a fantastic automotive microprocessor relays make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!
Your presence here indicates that you are interested in automotive microprocessor relays. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top automotive microprocessor relays products available right now. You might be wondering how we came up with the list. How was this buying guide developed?
First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top automotive microprocessor relays on the market right now!
The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:
Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top automotive microprocessor relays brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.
Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top automotive microprocessor relays based on those.
Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.
Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.
Customer ratings: Would it be accurate to suggest that the automotive microprocessor relays were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.
Customer Reviews: Like ratings, provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.
Seller Rank: This is very intriguing! Not only do you need a good automotive microprocessor relays, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.
Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your automotive microprocessor relays.
Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting automotive microprocessor relays for months and years to come.
Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.
Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.
These are the standards by which we selected our automotive microprocessor relays. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.
Why should you believe us?
There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what automotive microprocessor relays should you purchase in 2022?
This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on automotive microprocessor relays.
