Switches & Relays

49 Best 100 amp relay 2022 – After 170 hours of research and testing.

Written by Toni Morrison

Now that you are here, you must be looking for the best 100 amp relay! If you aren’t for it, you shall use our search and look for the topic you are interested in. As this piece is a lengthy one and covers a few more aspects other than the best list, they are the best 100 amp relay brands in United States of America and a buyer’s guide for making an informed buying decision.

Before we begin with the list, We ask you to make a list of things that you are looking for in a 100 amp relay. It could be anything which you’ll require when doing tasks. This will help you have some clarity about the important things and will help you save money by not overspending on the features you won’t use or a product that has more features!

You surely are here for being able to make an informed buying decision when it comes to 100 amp relay and you must be looking for the list, We know that! But before we begin, we’d like to tell you that, this is the most unbiased list ever, it has specs, lists down the features of the 100 amp relay, best brands and has a dedicated buyer’s guide for people in United States of America.

Full Disclosure: This article might have a few external links to Amazon and other informative sources. When you make a purchase on Amazon using our link, we’ll earn a small fee without you having to pay extra for the item. This helps us keep the site running and publishing more awesome content, add more research and never let people buy bad-quality products!

Best 100 amp relay in 2021

1. ESUPPORT Car Auto Heavy Duty Split Charge DC 12V 100A 100 AMP SPST Relay 4 Pin 4P RL180 -Accessory Power

By ESUPPORT
  • Hundreds of uses include- starter kills, domelight supervision, trunk release, polarity change, power door lock/actuator control
  • 4Pin Normally Open with 60 Ohms Coil Resistance.
  • Voltage: 12V, Contact rating: 100A
  • It is made of high quality material, with long serving life
  • Size: 45mm(L) x 45mm(W) x 45mm(H), about 1.77”(L) x 1.77”(W) x 1.77”(H)

2. Car Relay, Auto Heavy Duty Split Charge DC 12V 100A 100 AMP SPST Relay 4 Pin 4P RL180 Auto Switches & Starters -Accessory Power

By SL Mall US
  • Relay:100A Automotive Starter Split charge relay
  • Interlocking relay sockets
  • Hundreds of uses include- starter kills, domelight supervision, 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
  • 12v relay is Also suitable for automobile used for control, alarms, horn, headlight

3. YWBL-WH Car Starter Relay 12V 100A 4 Pin Normal Open Heavy Duty Car Starter Relay for Control Battery ON/Off 2.95 × 1.69 × 1.69 in -Accessory Power

By YWBL-WH
  • MAIN FEATURE—The car starter relay is normally open, and 4-pin relay type, and rated current is 100A, rated voltage is 12VDC
  • LONG SERVING LIFE—Made of high quality material, the car starter relay is with long serving life
  • USED FOR—The car starter relay is used for controlling battery ON/OFF
  • STABLE WORKING PERFORMANCE—The car starter relay is of great stable working performance, and great dust proof function
  • QUALITY GUARANTEE—Each car starter relay got a series of tests to ensure stable performance

4. Baomain 3 Phase Solid State Relay JGX-48100A 3-32 VDC Input 480VAC 100 Amp Output DC/AC -Accessory Power

By Baomain
  • Net weight: 332g
  • Input: 3-32VDC, Output: 480VAC, 100A
  • Mount hole size: 6 x 5mm/0.25″X 0.2″(L*W)
  • Control method: DC to AC
  • Total size: 104 x 73 x 33mm/4.1″ x 2.9″ x 1.3″ (L*W*H )

5. Etopars 12V 100A Heavy Duty Split Charge ON/OFF Relay Car Vehicle Truck Motor RL180 -Automotive

By Etopars
  • It has excellent stable performance and great ,waterproof , dustproof function
  • Widely used for construction vehicles, RV and other large vehicles start, all kinds of high current control system.
  • Adopts of copper terminal has good electrical conductivity, with a long lifespan.
  • Change a low current output to high current,add ignition/accessory outputs, control motors/other electronics.
  • 100A Normal Open Heavy Duty Car Starter Relay for Battery Control ON / OFF

6. ESUPPORT DC 12V 100A 100 AMP Car Automotive Boat Truck 4 Pins SPST Alarm Relay Switch Copper 9.5mm Terminal Pack of 5 -Automotive

By ESUPPORT
  • High 100A coil capacity- able to handle those high current applications with ease
  • Large Pure Copper Pin:9.5mm
  • Suitable for car alarm fitters, audio installers, auto electricians, and DIY use.
  • Heavy Duty 12V 100A 4Pin SPST Relay
  • Mechanical life of 100,000+ cycles, Life Expectancy Mechanical: 10,000,000 Operations.

7. ESUPPORT DC 12V 100A 100 AMP Car Automotive Boat Truck 4 Pins SPST Alarm Relay Switch Copper 9.5mm Terminal -Automotive

By ESUPPORT
  • Heavy Duty 12V 100A 4Pin SPST Relay
  • High 100A coil capacity- able to handle those high current applications with ease
  • Mechanical life of 100,000+ cycles, Life Expectancy Mechanical: 10,000,000 Operations.
  • Large Pure Copper Pin:9.5mm
  • Suitable for car alarm fitters, audio installers, auto electricians, and DIY use.

8. Car Starter Relay, DC 12V 100A 4-Pin WM686 Normal Open Car Starter Relay for Control Battery ON/Off -Accessory Power

By YWBL-WH
  • With the car starter relay, it is convenient to replace the broken one, and modify the car
  • The car starter relay is of normally open, 4-pin relay type, rated current is 100A, rated voltage 12VDC
  • The car starter relay could operate within 30 minutes at a time of 4.8W, and 2.4W can work for a long time
  • Adopting copper terminal, the car starter relay is of good electrical conductivity, with stable working performance
  • The heavy duty car starter relay is with wide application, used for small crane, wheat combine harvester, auto start power switch, auto preheat relay

9. ESUPPORT DC 12V 100A 100 AMP Car Automotive Boat Truck 5 Pins SPDT Alarm Relay Kit Switch Copper 9.5mm Terminal Pack of 5 -Automotive

By ESUPPORT
  • Heavy Duty 12V 100A 5Pin SPDT Relay
  • Mechanical life of 100,000+ cycles, Life Expectancy Mechanical: 10,000,000 Operations.
  • Suitable for car alarm fitters, audio installers, auto electricians, and DIY use.
  • High 100A coil capacity- able to handle those high current applications with ease
  • Large Pure Copper Pin:9.5mm

10. Relay Contactor, Car Relay DC 12V 100A Heavy Duty Car Starter Relay for Automotive Car Truck Van Motor Boat Car Split Charge On/Off Switch Relay, 4 Pin WM686/180 -Accessory Power

By Yosoo Health Gear
  • [Stable Performance]: The car relay adopts copper terminal to ensure good electrical conductivity; This help offers stable working
  • [Application]: The heavy duty car on/off relay could be used for small crane, wheat combine harvester, auto start power switch and other universal 12V applications
  • [Specification]: 12V DC 100A; Coil Power 4.8W; Contact Form Normally Open; 4 Pin WM686/180
  • [Friendly Service]: Sellers are right here 24/7 when you need any help; Remember that we are just a mail away
  • [Car Starter Relay]: This starter relay is a car start relay used for control battery On/Off

11. WERLAHO AC Solid State Relay 110 Volt Relay 100A AC to AC SSR with Heat Sink for PID Thermostat Temperature Controller (SSR-100AA) -Solid State Relays

By
  • Solid State Relay ‘s Load Current 10A to 25A use radiator cooling, if more than 25A must on the radiator and fan cooling.
  • Solid State Relay ‘s Feature:Low drive voltage,Low drive voltage,High sensitivity,No noise,No electric spark,Long service life.
  • Widely used in many automatic control systems
  • Output requirements concatenated fuse or and the varistor.
  • Solid State Relay ‘s Input Voltage: 70-280VAC; Output Voltage: 5-480VAC; Max Load Current: 100A.

13. Starter Relay WM686 12VDC 100A 4 Pin ON/Off Car Starter Relay Heavy Duty Auto Switches for Control Battery -Solid State Relays

By Walfront
  • [Feature] The powerful relay is normally open, and 4-pin relay type, and rated current is 100A, rated voltage is 12VDC.
  • [Convenient] The 4 pin starter relay is designed with a hole for easy installation
  • [High Quality] The starter relay adopts copper terminal which has good electrical conductivity and great stable working performance.
  • [Application] This car start relay is a good automotive replacement with wide application, used for small crane, wheat combine harvester, auto start power switch, auto preheat relay and more.
  • This relay is characterized with high reliability and durability.
  • [Good Performance] Operating within 30 minutes at a time of 4.8W, 2.4W can work for a long time
  • Convenient to replace the broken one, and modify the car.

14. Keenso Solid State Relay, SSR 3-32V 12V DC Solid State Relay BRM-60DD/80DD/100DD 24V Control Communication SSR(100A) -Solid State Relays

By Keenso
  • [ Self-Lifting Screw Crimping Wiring ]– Self-lifting screw crimping wiring has high structural strength, impact resistance and strong shock resistance
  • Any problem of this product, you can send emails as soon
  • BUY WITH CONFIDENCE in Geeriu!
  • [ Safety Cover ]– The structure is novel and equipped with a safety cover, making it more convenient to install, safe and reliable
  • We will provide you excellent customer service and 100% satisfaction warranty
  • Only need to use a potentiometer outside to achieve communication
  • [ SCR Phase Shift Output ]– SCR phase shift output, wide range of electric power adjustment, can replace bulky contact regulators in many applications
  • [ Keenso Service Guarantee ]– We have professional, premium aftermarket replacement
  • [ Flame-Retardant Plastic Shell ]– This SSR solid state relay is made of flame-retardant engineering plastic shell, durable to use

15. IRHAPSODY 12V DC 120Amp 4 Pin Heavy Duty Relay, Split Charge Relay Switch, Continuous Duty SPST 4 Terminal Relay -Solid State Relays

By iRhapsody
  • It is more reliable than 2.4W (60 ohms) and 4.8W (30 ohms) relays on the market
  • ADVANTAGE – coil power: 1.8 W; coil resistance: 80 ohms
  • Nominal coil voltage: 12V, Pickup voltage: 8V, Dropout voltage: 1.2V, Maximum applied voltage: 14V
  • Ideal for split charging or any vehicle needing a high power relay
  • The size of the round stud terminals: M6 / 6mm
  • Large capacity: 120a high current carrying capacity, heavy duty make/break relay

16. 12V DC 120 Amp Split Charge Relay Switch – 4 Terminal Relays for Truck Boat Marine -Automotive

By ONLINE LED STORE
  • Heavy Duty 12VDC (14V Max) Continuous Duty Rated 4-Pin SPST (Single Pole Single Throw) Relay.
  • Normally Open with 60 Ohms Coil Resistance.
  • 120A High Current Carrying Capacity.
  • 1/4″ Studs for Power Input and Output.
  • Perfect for Split Charging or Various Automotive Applications.

17. IRHAPSODY 5 Pack 80/60 AMP Waterproof Relay and Harness – Heavy Duty 12 AWG Tinned Copper Wires, 12 V DC 5-PIN SPDT Bosch Style Automotive Relay -Solid State Relays

By iRhapsody
  • 16 AWG tinned copper wires for Pin 85, Pin 86
  • 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
  • 12 AWG tinned copper wires for Pin 30, Pin 87, Pin 87a
  • 80 A / 60 A High switching capability
  • 12 V DC waterproof relay (max 14 V)
  • Excellent waterproof performance, high quality in any weather conditions

18. IRHAPSODY 6 Pack 80/60 AMP 12 V DC Relay and Harness – Heavy Duty 12 AWG Tinned Copper Wires, 5-pin SPDT Bosch Style Automotive Relay -Solid State Relays

By iRhapsody
  • Length: 5.1in
  • Length: 5.1in
  • Nominal Coil Voltage: 12VDC; Must Operate Voltage: 6~8VDC; Must Release Voltage: 0.6~3.6VDC; Maximum Applied Voltage: 15.6VDC; Coil Power: 1.8W; Coil Resistance: 80Ω
  • Pin 30-VDC (Red), Pin 85-Ground (Black), Pin 86-Trigger (White), Pin 87-Output /O (Blue), Pin 87a-Output N/C (Yellow)
  • 16 AWG tinned copper wires for Pin 85, Pin 86
  • 80 AMP / 60 AMP High switching capability
  • 12 AWG tinned copper wires for Pin 30, Pin 87, Pin 87a
  • 12v dc 5-prong relay (max 14v)

19. Stinger SGP32 200 AMP Battery Relay Isolator and Relay -Solid State Relays

By STINGER
  • 200 AMP Battery Isolator and Relay
  • Universal 12V Applications
  • Maximum current transfer
  • Extends battery life
  • Prevents primary battery discharge

20. 4-pin 80/60 AMP 12V DC Waterproof Relay with Harness – Heavy Duty 12 AWG Tinned Copper Wires, 5 Pack SPST Bosch Style Automotive Relay for Marine Boat Fan Light -Solid State Relays

By iRhapsody
  • Length: 5.1in
  • 16 AWG tinned copper wires for Pin 85, Pin 86
  • 80amp / 60amp High switching capability
  • 12 AWG tinned copper wires for Pin 30, Pin 87
  • 12-volt 4 wire waterproof relay (max 14-volt)
  • Nominal Coil Voltage: 12V DC; Coil Power: 1.8 W; Coil Resistance: 80 Ω; Must Operate Voltage: 6~8V DC; Must Release Voltage: 0.6~3.6V DC; Maximum Applied Voltage: 15.6V DC
  • Length: 5.1in
  • Excellent weatherproof and dustproof ability, high quality in any weather conditions

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

By TWTADE
  • Weight : 320g ;Package Content: 1 x High Power Relay + 8 x Terminals
  • Coil: AC 110V; Load : 80A 28V DC /250V AC
  • Product Name: Relay; Model : JQX-62F-2Z AC 110V
  • Contact Type : DPDT 2NO+2NC;Terminals: 8
  • Size (Approx.): 85 x 65 x 65mm/ 3.3″ x 2.5″ x 2.5″(L*W*H)

22. Stinger SGP38 80-AMP Battery Isolator and Relay,BLACK -Electromechanical Relays

By STINGER
  • Extends battery life
  • 80 AMP Battery Isolator and Relay
  • Maximum current transfer
  • Prevents primary battery discharge.80A constant 150A peak
  • Universal 12V Applications

23. MGI SpeedWare Fused Relay Panel Box and 12vDC Wiring Kit (6 Relay) -Automotive

By MGI SpeedWare
  • Dimensions: 6.625″ x 3.25″ x 4.50″
  • For engine bay installation, use an MGI Junction Box (B08HVZBCDZ)
  • EASILY INSTALL your switches and loads to the numbered screw terminals (#6 bolt size)
  • HIGH-QUALITY aluminum module box laser cut in North America
  • Main Fuse Size: 100A | Main Feeder Size: #8 AWG | Relay Fuse Sizes: 1 x 25A, 5 x 30A
  • CONTROL 12vDC automotive accessories up to 24A for resistive loads, and up to 12A for electric motor loads such as fans and pumps.
  • Allows for individual negative or positive switching.
  • UNIVERSAL FIT – Simply mount anywhere inside your vehicle cabin

24. Nilight 50043R Socket 10 Pack SPDT Bosch Style Electrical 12V 30/40 Amp 5-Pin Relays Switch for Automotive Truck Marine Boat,2 Years Warranty -Automotive

By Nilight
  • 5 Pin SPDT Bosch Style Electrical Relay
  • These relays have a universal application and can be used in automotive setups, car sound systems, security systems, and various other applications.
  • 40A/30A High Switching Capability
  • Fit Type: Universal Fit
  • These Relays are Interchangeable/Compatible with: All automobiles and devices equipped with a 12 Volt DC power source
  • Pin Specifications: Ground (85), VDC (30), Trigger (86), Output N/C (87a), and Output N/O (87)
  • Package includes: 10 pack electrical relays

25. MaySpare 80-Amp Relay 12V Continuous Duty Solenoid Relay Battery Isolator and Relay White Rodgers High Current Starter Relay 4 Pin SPST -Automotive

By MaySpare
  • high current relays are the most reliable and efficient way to add secondary batteries to your system; 100% OEM Match & High Quality, 6 Month Warranty; Full Refund and Exchange
  • Install:The kit has included 4pcs big 100AMP terminals connected to loading and 4pcs small terminals which connected to original power
  • Double Batteries Isolator Control On/Off Switch; Continuous Amps: 80,Surge Max Amps:500 ,Voltage: 12VDC; 100,000 mechanical cycle life./Normally Open With Attaching Hardware, Copper Contact With Sliver Pins
  • Max Switching Currecnt could pass 500A at 5ms ,and Max Switching power could be 2000W / Replace: White Rodgers: 120-105751, 120-105751-6, 120-901S1,120-107112/ Cummins 3916301 3916302
  • 4pcs insulated skin red cap.
  • Note: It requires constant voltage as but depending on the application
  • The working time could be around continuous four or five hours , stop it and then use it.

26. OFNMY 12V 200A Relay ZL180 Car Starter Heavy Duty Split Charge with 2 Pin Footprint + 4 Terminal for Car Truck Motor Automotive Boat -Automotive

By OFNMY
  • With 2pin footprint + 4 terminal accessories, Hundreds of uses include- starter kills, domelight supervision, trunk release, polarity change, power door lock/actuator control
  • 200 Amp Relay: 200A high current carrying capacity, ideal for universal 12V applications
  • Color: black Net weight: 100g Size: 45mm(L) x 45mm(W) x 45mm(H), about 1.77”(L) x 1.77”(W) x 1.77”(H)
  • Vinyl install tools, building tools, industry tools, advertisement film install, mobile screen protective film install
  • Heavy Duty Relay: Durable & Firm & Stable Contact, heavy duty make or break (on/off) relay

27. ONLINE LED STORE 6 Pack 4-Pin 12V Bosch Style Fused Relay Switch Kit [Interlocking Harness Socket Holder] [14 AWG Hot Wires] [SPST] [30 Amp] 12 Volt Automotive relays with Fuse for Auto Cars -Automotive

By ONLINE LED STORE
  • 12VDC (14V Max) and 30A High Switching Capability.
  • Set includes 6 relays, 6 relay harnesses, and 6 blade fuses.
  • Bosch style 4-Pin SPST (Single Pole Single Throw) Relay.
  • Wire Specifications: Black – Ground (85), Red – VDC (30), White – Trigger (86), Blue – Output N/O (87).
  • Built in fuse socket with included 30A blade fuse with heavy duty 14AWG wires for main contact.

28. 5 Pack 40/30 AMP 12 V DC Waterproof Relay and Harness – Heavy Duty 12 AWG Tinned Copper Wires, 5-PIN SPDT Bosch Style Automotive Relay -Electromechanical Relays

By iRhapsody
  • 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
  • 12v dc waterproof 5 wire relay (max 14v)
  • Length: 5.1in
  • 12 AWG tinned copper wires for Pin 30, Pin 87, Pin 87a
  • Excellent waterproof and dustproof ability, high quality in any weather conditions
  • 16 AWG tinned copper wires for Pin 85, Pin 86
  • Length: 5.1in
  • 40 amp / 30 amp High switching capability

29. 12VDC 200 Amp Continuous Relay and Battery Isolator High Current Relay for Mobile Audio -Automotive

By A ABIGAIL
  • ParameterVoltage: 12VDC/ Dimensions: 2-3/8″W x 2-3/8″D x 3-3/4″H/Power Handling: Continuous power handling of 200 amps/ Surge Power Handling: 300 amps.
  • Service100% satisfaction guarantee, If you have any issues with the part, simply contact customer service for troubleshooting help, parts, replacement, or refund
  • Wrie DiagramConnect the two small studs one to ground the other to an ignition on source from fuse box , the order on the large/ small studs does not matter
  • Our aim is to make you satisfy the parts and the service we provide for you.
  • High QualityA ABIGAILContinuous Relay and Battery Isolator is made of solid and weather resistant steel and powder-coated black surface for great durability, 100% OEM Match and Replacement.
  • FunctionAn isolator is used to combine two batteries when an alternator is charging ( engine running) and isolate them when not charging ( engine off) so you can still start your vehicle.

30. Rareelectrical New 12V 150A Continuous Duty Solenoid Relay Compatible With Golf Carts 300A In Rush By Part Numbers 1114208 15-88 1588 SWX88 1513215108 1114218 5117340 SWX88 502265300 SWX-88 15-132 -Automotive

By Rareelectrical
  • Solenoid – Voltage: 12V Amperage: 150 Amps Duty Cycle: Continuous Source: Aftermarket
  • Full One Year Warranty
  • Replaces: DELCO 1114208 1114218, JOHNSON ELECTRIC 5117340, MOTORCRAFT SWX88, PRESTOLITE 15-88 SWX-88 15-132 SAS4202 15-108, YALE 502265300, CONTINUOUS DUTY SWITCH, 12 VOLT 4-TERMINAL, INSULATED BASE, FLAT BRACKET …
  • Please verify your OEM part number from your original unit to help ensure fitment.
  • Computer tested for consistent Quality and unsurpassed reliability
  • Compatible with CAT, DELCO, MOTORCRAFT, PRESTOLITE, YALE and many more..

31. 12V Auto Waterproof Fuse Relay Box Block [6 Bosch Style Relay Holder] [6 ATC/ATO Fuse Holder] Universal Relay Block Box for 12V Automotive Vehicles Cars Marine Boat Light Equipment -Automotive

By ONLINE LED STORE
  • A COMPLETE KIT – Box, brackets, seals, terminals, we’ve included everything you will need to sucessfully install your new waterproof relay box.
  • BUILT LIKE A TANK – Made from durable and dependable nylon 66 and sporting an IP65 waterproof rating, our relay box dosent understand the word “can’t.”
  • MORE THAN A WARRANTY – We’ve got you covered with an industry leading two-year warranty and the best customer support in the business.
  • MULTI-TRERRAIN – Our unique “Z” shaped brackets make it possible to securely mount this waterproof relay box just about anywhere.
  • REMAP YOUR WIRING – organize, consolidate, and keep track of multiple independent circuits with six relay sockets and six fuse holders.

32. DC 12V 100A 5 Pins SPDT Clear Shell Green Light Car Automotive Alarm Relay 10pcs -Solenoids

By DIYElectronic
  • If you need the product urgently, you can choose expedited service
  • Delivery time: 6-18 days by special line for USA , 8-30 days by regular post for Worldwide,If it is not received within the specified time, please contact us and we will refund you in full.
  • We are a professional supplier of integrated circuit products
  • any question,please feel free to contact me.I believe our sweet service will satisfy you.
  • Just search keywords in our store
  • We will use DHL to serve you
  • Delivery time: 3-7 days.
  • I believe you can find the Product you need.

33. GAEYAELE 1PCS GRT8-M 16A Multifunction Time Relay with 10 Function Choices AC220V OR AC/DC12V-240V Relay(GRT8-M1,AC/DC12V-240V) -Solenoids

By GAEYAELE
  • Relay Status : Its working status is indicated by the LED indicator.
  • Special 10 Functions: 5 time functions are controlled by the power supply voltage, 4 time functions are controlled by the control input, and 1 latch relay function.
  • Product Size: Ultra-small size, only 18mm width, 35mm rail mounting.
  • Time range: The time scale is 0.1s-10 days, divided into 10 ranges.
  • Instructions: Comfortable and well-arranged function and time-range setting by rotary switches.

34. MaySpare Max 200A Trombetta Continuous Solenoid Relay 3 Terminal Heavy Duty Winch Marine 24106 SPST Solenoid 12VDC -Automotive

By MaySpare
  • Contacts:Normally Open (NO)/ Flat Base Metal Case / 10-32 Terminal
  • Our Coil Roll is using 180℃ Copper
  • It is already grounded internal.
  • Max Current Above 200amp/ Rate Current: 100A / Our Cover is Environmental Plating,Sealed Unit Protects Solenoid From The Elements Helping Prevent Corrosion
  • Note:If it is the energizing circuit which is typically 16/18 Awg , suggest a 5amp fuse;If 10 Awg wire suggest 30 amp auto cicuit breaker; If high output alternator, suggest an 8 Awg wire with a 50 Amp auto circuit breaker
  • INSTIALL:One side goes to Battery, opposite side to starter, top screw which is smaller goes to switch or key start only
  • 3 Pole Battery Isolation Solenoid, 12VDC With 2 Copper Point,Housing plated Steel Case / 180Flat mounting bracket./ Mounting holes: 5/16 x 19/32, 2-13/64 on centers.

35. FridayParts 24V 100A Sealed Relay 3740150 for JLG Lift 1930ES 2030ES 2630ES 2646ES 3246ES -Solenoids

By FP FRIDAYPARTS
  • New aftermarket parts
  • 24V 100A Sealed Relay 3740150
  • Fits JLG Lift 1930ES 2030ES 2630ES 2646ES 3246ES

36. 12 V DC 120 Amp 4 Pin Heavy Duty Split Charge Relay Switch 4 Terminal Relays for Truck Boat Marine (1 Pack) -Solenoids

By Generic
  • [Wide Compatibility]: This 120amp relay can be good to handle your high amperage needs
  • [Part Number]: 4Pin 12 V DC 120 Amp.
  • [High Quality]: Heavy duty 12VDC (14V Max) 4-terminal SPST (Single Pole Single Throw) relay with continuous heavy duty rate, 120A high current carrying capacity, heavy duty make/break relay.
  • [Easy to Install]: The relay is simple in structure, plug and play, easy to replace, save your time
  • Also it is recommended for auto power switching and marine use; no worry about the battery becomes dead when forgetting turn off the manual switch.
  • Check YouTube video if you have installation problem.
  • Just remove the broken relay from your car, and install the new relay directly and test, then the installation is complete
  • [Durable and safety]: Equip with high quality composite housings protect against harsh temperatures and severe under hood conditions, brass or copper contacts with extended wear, which ensure a long time use and more safety.

37. Taiss/JQX-30F 1Z DC 12V Coil 5 Pin 35A SPDT 1NO 1NC Electromagnetic Relay General Purpose Power Relay for Remote Control, Automatic Control System LJQX-30F/1Z DC12V -Solenoids

By Taiss
  • Body Size(not included pin) : 4.7 x 3.5 x 4cm / 1.85″ x 1.38″ x 1.6″ (L * W * T);Total Height : 4.8cm / 1.6″;Installing Hole Size : 0.48 x 0.35cm / 0.19″x 0.14″(L*W);
  • This Selector switch Warranty 1 years
  • Weight : 100g;Package Content : 1 x Power Relay
  • Installing Hole Distance(center) : 3.85 x 3.78cm / 1.52″ x 1.49″(L*W);Material : Plastic, Metal;Color : See the Picture
  • We will send you new ones .
  • Product Name : Power Relay;Model : LJQX-30F/1Z; Contact : SPDT 1NO+1NC; Pin Number : 5; Coil Voltage : DC 12V; Contact : 35A 250V AC / 28V DC
  • If there are quality problems within 1 years, you can send us email

38. 12V 100A Relay WM686 Car Starter Heavy Duty Split Charge with 4 Pin for Car Truck Motor Automotive Boat -Solenoids

By Tyenaza
  • You can get in touch with customer service when you meet any question.
  • FunctionThis product is a car start relay with wide application, used for small crane, wheat combine harvester, auto start power switch, auto preheat relay.
  • SpecificationThe relay is normally open, and 4-pin relay type, and rated current is 100A, rated voltage is 12VDC.
  • High QualityThe relay adopts copper terminal, with good conductivity and stable working performance
  • Long-time OperationThe starter relay works within 30 minutes at 4.8W and for a long time at 2.4W.
  • CUSTOMER SERVICEWe care for every customer’ s feeling

39. 1 Pack 60/80 Amp 12 Volt Waterproof Automotive Relay with Pigtail, 5-Pin Heavy Duty 12 AWG Tinned Copper Wires Marine Relays for Boats Auto Fan Cars -Automotive

By HOPUT
  • Socket Features 12″ Copper Wire Leads – (3) 12 Gauge Primary Leads, (2) 16 Gauge Coil Leads
  • Great for Powering Off Road Lights and Accessories
  • OEM Style Relay Rated to 60 Amps Normally Closed
  • Vibration Resistant and Sealed, Also this 60/80 Amp 12 Volt Waterproof Automotive Relay can be used under the condition of 40/30 AMP or 50/80 Amp
  • and 80 Amps Normally Open

40. 12V 250A Continuous Relay On/Off Power Switcher Automotive Starter Relays for Car Truck Boat Electrical Control, 5 Pin SPDT Split Charger + Heavy Duty Copper Lugs with Boots + Wire Terminal Connectors -Accessory Power

By
  • 250A Relay is compatible with all automobiles and devices equipped with a 12 Volt DC (under 250A) power source.
  • Continuous relay set come with heavy duty wire lugs, terminals and rubber footprint pins to make welding cables easily.
  • 12V 250 Amp High Current Carrying Capacity.
  • Normal Open / Normal Closed Dual Control.
  • Heavy Duty Continuous Duty Rated Relay with 5-Pin SPDT (Single Pole Double Throw).

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41. EHDIS 12V 120A 4 Pin Car Relay Black Box Battery for Automobile Heavy Vehicle Truck Excavator Van Boat + 2 Pin Footprint + 2 Terminal [1 Set] -Accessory Power

By EHDIS
  • Type: Extra Heavy Duty 120A Split Charge Relay
  • Voltage: 12V DC Rated Current:120A Terminal quantity: 4
  • Package Included: 1 x Heavy Duty Split Charge 120A ON/OFF Relay; 2 x Terminal; 2 x Footprint
  • Heavy duty make or break (on/off) relay Ideal for universal 12V applications
  • Terminals: 4 high quality durable & firm terminals

42. Temco 100/80 Amps DC Winch Motor Reversing Solenoid Relay Switch 12 Volt Contactor -Automotive

By Temco
  • 5 Year Warranty from an American name
  • Mechanical Cycle Life: 100,000 operations, Electrical Cycle Life: 50,000 operations
  • Coil Voltage: 12 VDC, Switching Current: NO 100 A, NC 80 A, Contact Voltage: 75 VDC max @ 20A
  • NON-GENERIC.
  • Temperature Range: -25 to +55 deg C
  • Insulation Resistance: 100 Mohm, Dielectric Strength: Between open contacts – 2000 VAC, Between coil & contact – 1500 VAC

43. EHDIS 2 Packs Car Relay with Harness Truck Motor Heavy Duty 5-Pin 80A 12V Relay On/Off Normally Open SPDT Relay Socket Plug 5 Wire Automotive Relay JD2912-1Z-12VDC 80A 14VDC -Automotive

By EHDIS
  • Using this kit will eliminate a high voltage drop in the wire, so it allows your components to work properly
  • These are heavy duty 80A relays
  • This kit can be used to install electric cooling fans, Electric fuel pumps, Electric water Pumps, Shaved door handles solenoids, Trunk solenoids, Horns.
  • Brand new heavy duty 12V SPDT relays and socket kit sets
  • 12 Volt 80 amp 5-prong relays socket with 5 wires
  • Mechanical life of 100,000+ cycles, Life Expectancy Mechanical: 10,000,000 Operations

44. Tnisesm 2PCS Power Relay SPST(1 NO) DC12V Coil, 30A SPST 120 VAC with Flange Mounting and 8 Quick Connect Terminals Wires Mini Relay HF105F-4-DC12V-8X -Accessory Power

By Tnisesm
  • Coil Voltage : DC 12V; 30A SPST 240VAC
  • Product Type: Power Relay with Terminal Wires; SPDT(1NO)
  • Easy to use: Attached with crimping terminals wires for worry-free installation.
  • Package Content : 2 x Power Relay + 8 x Terminal Wire
  • Epoxy sealed versions available

45. ONLINE LED STORE 5 Pack Bosch Style 5-Pin 12V Relay Kit [60/80 Amp Heavy Duty] [Interlocking Harness Socket Holder] [12 AWG Hot Wires] [SPDT] 12 Volt Automotive Relays for Auto Fan Cars -Automotive

By ONLINE LED STORE
  • Set includes 5 relays and 5 relay harnesses.
  • Wire Specifications: Black – Ground (85), Red – VDC (30), White – Trigger (86), Yellow – Output N/C (87a), and Blue – Output N/O (87).
  • 80A/60A High Switching Capability.
  • User Manual available for download under Product Information Details
  • Bosch style 5-Pin SPDT (Single Pole Double Throw) Relay.

46. uxcell Waterproof DC 12V 80A SPST Auto Car Relay 4 Pin 4 Wires w/Harness Socket -Automotive

By uxcell
  • High 80A coil capacity- able to handle those high current applications with ease.
  • Relay socket with 4 wires.
  • This relay has a universal application and can be used in automotive setups,car sound systems,security systems,and various other applications.
  • DC 12V 80A 4 pin SPST electrical relay with pre-wired relay socket harness.
  • Package includes: 1 relay + 1 socket wire.

47. Functional Devices RIB243P Power Relay, 20 Amp 3PST-N/O, 24 Vac/dc Coil, NEMA 1 Housing -Accessory Power

By RIB
  • Application: Power Nipple Size: 1/2″ NPT Response Time: 20 msec HP @ 240V: 2 Dimensions: 4.0″H x 4.0″W x 1.8″D Country of Origin (subject to change): United States
  • Price For: Each NEMA Enclosure Type: 1 Item: Enclosed Pre-Wired Relay Hz: 50/60 Indicator Type: LED Lead Length: 16″ Standards: UL Listed, CUL, CE, Cus Contact Form: 3PST Features: Enclosed Coil, Screw Terminals and Silver Alloy Contacts Contact Amp Rating (Resistive): 20A @ 300VAC, 15A @ 600VAC, 20A @ 28VDC Contact Material: Silver Alloy HP @ 120V: 1 Coil Volts: 24VAC/DC

48. IRHAPSODY 12VDC 80/60AMP Waterproof Relay with Harness, Heavy Duty 12 AWG Tinned Copper Wires, 5-PIN SPDT Bosch Style Automotive Relay -Accessory Power

By iRhapsody
  • Length: 5.1in
  • 12-volt weatherproof 5-prong relay, excellent water-repellent, and dustproof ability
  • 12awg tinned copper wire for primary leads, 16awg for coil leads
  • Be careful when inserting relay into the socket, if you force it you will bend the female connectors
  • Safety Warning: never go beyond its capabilities, try to stay 10 to 15% below what is rated for
  • Please make sure you are making tight connections, (especially on the load wires)

49. NVX BIR200 200 Amp Relay Isolator (BIR200) -Automotive

By NVX
  • 300 Amps Surge
  • Switching Power: 10 – 16 VDC
  • 200 Amp Battery Isolator
  • 200 Amps at 12V Continuous

100 amp relay – The Buyer’s Guide

You must have checked the above list, aren’t you mind-blown by the quality of products? Well, if you are then here’s a secret formula which we’ve used to choose them. You can use them too! The best part is, it works for all the product purchases you make! Besides, wouldn’t it be helpful to you, if you knew the factors we’ve considered to choose the 100 amp relay in the above list? So shall we begin with the guide and help you learn about the important factors?

1. Does it have the features you need?

Wait for a minute before you buy the 100 amp relay, check if it has all the features in your requirement list! If it doesn’t have them, then you should avoid buying that particular model and start looking for an alternative. We always suggest our editors to make a list of important features before adding a product to a list and based on the feature, the quality of the product, brand-assurance, rank it! So if it has all you need, you should not mind paying a bit extra. However, if you end up buying the best 100 amp relay which doesn’t have the feature you need the most, then it won’t make sense! Would it? To us, it wouldn’t! That’s why you should make up a list which includes the features you are looking for, technical specifications if any, etc and come up with a budget.

2. Budget and Price Match

Well, you obviously can’t buy the best 100 amp relay with a low budget. That’s why it’s important to make note of all the important features, specs, factors and come up with a budget. Once you are ready with it, look for the products which are either equal to your budget or are close to it. Stick to the budget, because while browsing, you’ll see a model which is slightly better and has an additional feature with a really small price difference. Well, in that case you’ll have to calculate the price of the product which has all the required features and the 100 amp relay with the additional features. See if the difference in amount is worth for the feature? If you don’t have second thoughts, you shall probably increase your budget.

3. Warranty and Brand

Most of the 100 amp relay industry experts we got in touch suggested us to always buy the one which comes from a reputable brand. They also explicitly asked us to include the best brands so that users don’t buy the models from unknown brands or non-reputable companies. Because 100 amp relay from an unknown brand might be cheap at first glance, but could have high-maintenance and could cost a lot in repairs.

Another benefit of buying a 100 amp relay from a reputable brand would be warranty. Most of the 100 amp relay from reputable brands come with good warranty. However, cheap products do come with a warranty, but claiming it can be a herculean task. That’s why buy the models which come from known brands and have good warranty.

4. Check for Reviews and Ratings

Back then when the Internet wasn’t as big as it is today, local stores charged high and even ended up selling the products which sucked or wasn’t future proof. It’s because the salesman threw technical terms and confused the buyer. But nowadays, there are sites like ours which does all the research and lists down the best models and there are eCommerce stores like Amazon which has user reviews which can be read to know the experience of the user with that particular 100 amp relay. Isn’t it great?

The Verdict

We hope that you loved the 100 amp relay we’ve listed in our best list. If it has been helpful, please bookmark our website and share it with people you know whenever they plan to buy something.

To wrap up this guide,

About the author

Toni Morrison

Toni is the Senior Writer at Main Street Mobile. She loves to write about the Internet and startups. She loves to read stories of startups and share it with the audience. She is basically a Tech Entrepreneur from Orlando. Previously, She was a philosophy professor. To get in touch with Matt for news reports you can email him on toni@mainstreetmobile.org or reach her out on social media links given below.

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