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5 Best Relays of 2025

Last Updated - 2025/05/12

1
Best Choice

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Digital Loggers

Iot Relay - Enclosed High-Power Power Relay for Arduino, Raspberry Pi, PIC or WiFi, Relay Shield

Digital Loggers

CA$78.95

More Details
Main highlights
- Wires to your Arduino, Raspberry Pi, PIC, or other micro
- Takes the place of a relay board. Fully assembled and ready to use.
- Safe, Reliable Power Control
- One circuit, 4 outlets, 2x NC, 2x NO
- Includes surge supression, debounce, safety breaker
CA$78.95
2
10% Off

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Joinfworld
10% Off

Joinfworld Relay Box 12V Automotive Fuse Relay Box Pre-wired Universal Waterproof Fuse and Relay Box with 6 Relays and 6 ATC/ATO Blade Fuses for Car Truck Jeep Boat

Joinfworld

CA$35.98

CA$39.99
(10% Off)

More Details
Main highlights
- Wide Application: The Automotive Relay Box suitable for all vehicles, 4X4 Offroad Jeep SUV UTV ATV RV Pickup Truck Trailer Camper Marine Boat, etc. For any problems, please do not hesitate to write to us.
- Solid Material: Joinfworld 12V Fuse and Relay Box is made of high-quality nylon material flame retardant shell, each slot has a precise cutout, and an arc socket is reserved on the edge, so that all your wiring is neat and beautiful.
- Neat Wiring Harness: This car relay fuse box has all the necessary wires pre-wired so you can connect directly to the vehicle, avoiding the hassle of wiring. More convenient for your installation and use.
- High performance: Joinfworld 12V Fuse and Relay Box comes with functional powerful insulation shell, with waterproof and dust-proof top cover and bottom cover, wire opening hole is the outlet of all wires, which can be well connected together for better waterproof dust fire prevention.
- Assembled Relay Fuse Box: Automotive 12V Relay Fuse Box with Wiring Harness has high capacity holder box, package includes 5pcs 4Pin 40A JD1914 Relays and 1pcs 4 Pin RTT7121 Relay, 6pcs 5A, 10A, 15A, 20A, 25A, 30A blade fuses.
CA$35.98
CA$39.99 (10% Off)
3

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

KITMOUS

Automotive Relay Harness Set - ELEFOCUS 5 Pin 12V 30/40 AMP SPDT with Interlocking Relay Socket and Color-Labeled Harnesses, 6 Pack

KITMOUS

CA$21.55

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Main highlights
CA$21.55
4

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

IRHAPSODY

irhapsody 12V 40/30AMP Waterproof Relay Kit, 5-pin SPDT Automotive Relay, with Heavy-Duty Pigtail Wiring Harness

IRHAPSODY

CA$34.99

More Details
Main highlights
- Primary leads use 12 a.w.g tinned copper wire. Coil leads use 16 a.w.g
- Please make sure you made tight connections (especially on the load wires)
- Never go beyond its capabilities. Try to stay 10 to 15% below what the rate is for
- Be careful when inserting the relay into the socket. If you force it, you will bend the female connectors
- 12vdc 5-prong relay. Excellent water-repellent and dustproof ability, but not using it in water
CA$34.99
5
Best Value
33% Off

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Valefod
33% Off

Valefod DC 5V Relay Module 1-Channel Relay Switch with Optocoupler Isolation High/Low Level Trigger, Pack of 10

Valefod

CA$19.99

CA$29.99
(33% Off)

More Details
Main highlights
- 【Universal Interface】Equipped with screwed terminal plate and fixed bolt holes(diameter: 3.1 mm) on both sides for easy installation.
- 【Load Range】NO(Normally open) maximum load < AC 250V/10A, < DC 30V/10A. Trigger current of opto-isolator: 5mA.
- 【High Compatibility】The relay module can be controlled directly by 5V logic signals from microcontroller(Arduino, 8051, AVR, PIC, DSP, ARM, Raspberry Pi, MSP430, TTL logic etc).
- 【Fault-tolerant Design】The relay will not operate even if the control line is disconnected.
- 【Control Devices】The 1-channel relay module uses genuine high quality DC5V relay and SMD opto-isolator supporting high/low level trigger, widely apply to control various AC/DC appliances, and other devices with large current.
CA$19.99
CA$29.99 (33% Off)

5 Best Relays of 2025

Iot Relay - Enclosed High-Power Power Relay for Arduino, Raspberry Pi, PIC or WiFi, Relay Shield

Joinfworld Relay Box 12V Automotive Fuse Relay Box Pre-wired Universal Waterproof Fuse and Relay Box with 6 Relays and 6 ATC/ATO Blade Fuses for Car Truck Jeep Boat

Automotive Relay Harness Set - ELEFOCUS 5 Pin 12V 30/40 AMP SPDT with Interlocking Relay Socket and Color-Labeled Harnesses, 6 Pack

irhapsody 12V 40/30AMP Waterproof Relay Kit, 5-pin SPDT Automotive Relay, with Heavy-Duty Pigtail Wiring Harness

Valefod DC 5V Relay Module 1-Channel Relay Switch with Optocoupler Isolation High/Low Level Trigger, Pack of 10

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Glarks 10 Pack 12V 30/40 Amp 5-Pin SPDT Electrical Relays Switch for Automotive Truck Boat Marine

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AuInLand Relay Switch 5 Pin 12V DC, 40A Electrical Relay Used for Car Truck, 25 Packs Automotive Relay

5-PIN 12V DC 40/30 Amp SPDT Waterproof Relay with Harness Socket 16/14 AWG Wires Ideal for Cars, Boats, Motorcycles, 5-PIN SPDT Bosch Style Automotive Relay by Wadoy (Pack of 5)

Anxingo 6 Pack 30/40A 12V 5-Pin SPDT Automotive Relay Socket Harness Set with Color-Labeled Wires

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)

Huayao 5PCS 5V One Channel Relay Module Board Shield for PIC AVR DSP ARM for Arduino Relay

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Tnisesm 2PCS Sealed Power Relay SPST AC120V Coil, 40 Amp 120 VAC with Flange Mounting and 8 Quick Connect Terminals Wires High Power Relay HF105F-4-AC120V-8X

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