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Sold by: IRHAPSODY® Store
Sold by: IRHAPSODY® Store
(1697 ratings)
100% positive over last 12 months
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irhapsody 1 Pack 40/30 AMP 12V DC Waterproof Relay and Harness - Heavy Duty 12 AWG Tinned Copper Wires, 5-PIN SPDT Automotive Relay

4.6 4.6 out of 5 stars 2,137 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Automotive Replacement Accessory Power Relays by iRhapsody

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Contact Material Copper
Contact Type Spdt
Current Rating 40 Amps
Brand iRhapsody
Wattage 560.00

About this item

  • 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 plugging the relay into the socket. If you push hard, you will bend the female connector
  • Primary leads use 12 a.w.g tinned copper wire. Coil leads use 16 a.w.g
  • SPDT relay: 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

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Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 8.17 x 1.4 x 1.35 inches; 3.84 ounces
  • Date First Available ‏ : ‎ December 26, 2017
  • Manufacturer ‏ : ‎ IRHAPSODY
  • ASIN ‏ : ‎ B074QV54V1
  • Customer Reviews:
    4.6 4.6 out of 5 stars 2,137 ratings

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From the brand


Product Description

12v relay

  1. The upgraded relay terminals will bring more stable performance. Few sellers are willing to make such improvements, and we are one of them.
  2. Use longer 12+16 gauge tinned copper wire. It is more corrosion and oxidation resistant compared to bare copper wire.
  3. We use high-quality rubber seals with excellent waterproof and dustproof performance.

relay 12v

  • Nominal Coil Voltage: 12 VDC
  • Coil Power: 1.8W
  • Coil Resistance: 80Ω
  • Must Operate Voltage: 6~8 VDC
  • Must Release Voltage: 0.6~3.6 VDC
  • Maximum Applied Voltage: 15.6 VDC

Package Content: 1 x 12v waterproof relay kit

  • Contact Ratings: NO 40A 14VDC
  • Contact Resistance: 100mMAX (at6VDC 1A)
  • Max Switching Current: 40A
  • Max Switching Power: 560W

TERMINALS

  • 85 Coil, Ground
  • 86 Coil, Trigger
  • 87 Normally Open (N/O)
  • 87a Normally Closed (N/C) - not present on 4 pin relays
  • 30 Common connection to NO & NC terminals
30 amp relay 60 amp relay
40/30amp 80/60amp
Customer Reviews
4.6 out of 5 stars
922
4.6 out of 5 stars
500
waterproof

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Customer reviews

4.6 out of 5 stars
4.6 out of 5
2,137 global ratings

Customers say

Customers like the quality, ease of installation, value, seal, and appearance of the relay. They mention that it's a heavy duty relay, easy to wire up, and worth the time to install. Some appreciate the appearance and copper.

AI-generated from the text of customer reviews

110 customers mention101 positive9 negative

Customers are satisfied with the quality of the relay. They mention that it is built well, durable, and heavy duty. It works well so far and is easy to wire up. It is designed to work with a common wiring schematic and is great for under the hood applications.

"...If you're in need of a durable and waterproof relay and harness, I highly recommend this one." Read more

"Works great 👍...." Read more

"Seems to be well built, but I'd prefer the documentation to confirm whether a resistor is in fact installed to protect the upstream circuitry." Read more

"This is a very well built unit that is easy to work with. A couple of things to keep in mind when you wire it...." Read more

36 customers mention29 positive7 negative

Customers like the ease of installation of the relay. They mention that it's easy to wire up, easy to mount, and worth the time to install. Customers also appreciate the tutorials and instructions provided with the product.

"This is a very well built unit that is easy to work with. A couple of things to keep in mind when you wire it...." Read more

"...Heavy gauge wire, built well and worth the time to install...." Read more

"...Easy to wire up and it’s working good so far. Quality is pretty good...." Read more

"...Very easy fix with this relay...." Read more

32 customers mention26 positive6 negative

Customers like the value of the waterproof relay. They mention it's a good value for the cost and a great product for the money.

"Great relay for the money." Read more

"...This is worth the price for a weather resistant relay." Read more

"...Price is right and heavy gauge pigtails." Read more

"...Feels super sturdy. Quality built at a fair price." Read more

30 customers mention27 positive3 negative

Customers like the seal. They mention that it is well designed, waterproof, and weatherproof as advertised.

"...A standout feature of this relay and harness is its waterproof quality...." Read more

"This is a premium relay. It has a cover with a very waterproof housing and is epoxy filled with clear colored wires per function ... A much better..." Read more

"...Given the HD feel, solid copper wires, and what appears to be solid waterproofing, I have no reason to believe they skimped on the inside...." Read more

"...Since the relay is waterproof, it's a safe bet many people will be installing this under the hood of a vehicle, or exposed to the outdoor elements...." Read more

10 customers mention10 positive0 negative

Customers like the appearance of the relay. They mention that it looks good, works great, and is a nice product. Some mention that the relay and the socket design were good.

"Really nice “set it and forget it” quality product." Read more

"...This seems to be a very well thought out design and looks like it would withstand getting underwater for a long period of time...." Read more

"...Load was a 12VDC 1.5A fuel pump. Barely any load at all. Base and relay design was nice. Too bad the relay itself was horribly built." Read more

"Awesome design. No instructions or diagrams included.This is how the wiring goes (I Think)Pin 86 trigger input..." Read more

7 customers mention7 positive0 negative

Customers are satisfied with the copper in the relay. They mention that it is heavy gauge, with thick wiring and a waterproof seal case. They also appreciate that the wire is all solid copper strands and not CCA. The product has a good weight and feels extremely heavy duty.

"...Firstly, it doesn't feel cheap. It has a good weight and feels extremely heavy duty, with very thick plastic and a grommet that is so tight I..." Read more

"Excellent for vehicles in wet or in water. Heavy gauge wire, built well and worth the time to install...." Read more

"...They are pure copper, not CCA so that's nice. However, the PVC insulation used on these wires seems pretty cheap...." Read more

"Very thick wiring and a great waterproof seal case" Read more

7 customers mention7 positive0 negative

Customers are satisfied with the delivery of the relay. They mention that it is delivered quickly and the product is of good quality.

"fast delivery and great item thanks" Read more

"Priced right, quick delivery, Quality product" Read more

"new and fast delivery" Read more

"Arrived quick!..." Read more

Exactly what I needed
5 Stars
Exactly what I needed
Time will tell if it's durable and the innards are up-to-spec, but my overall impression of this relay is extremely positive. Firstly, it doesn't feel cheap. It has a good weight and feels extremely heavy duty, with very thick plastic and a grommet that is so tight I struggled to get the two halves together (do it before wiring and/or installing or you'll almost surely have to take it back out). I seriously doubt I could get them apart. In addition to that I was surprised to see that the wire was all solid copper strands and what appears to be 12 gauge. I know it states that in the title/description, but to be honest I didn't actually expect it. Typically when corners are cut, cheap wiring is a very common place to do it. Given the HD feel, solid copper wires, and what appears to be solid waterproofing, I have no reason to believe they skimped on the inside.Also on a side note I appreciate the wiring diagrams in the item description. I have zero auto electrical knowledge but wanted to wire fog lamps up in parallel to my headlights but didn't want the lights drawing power from my headlight switch, so I T'd the power of this relay off the headlight lead and now only the relay draws power from it, as opposed to both fog bulbs. It's much much safer and should prolong the life of an expensive 45-year-old light switch.I will almost surely buy another of these when I add another external accessory.
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5.0 out of 5 stars Exactly what I needed
Reviewed in the United States on September 29, 2020
Time will tell if it's durable and the innards are up-to-spec, but my overall impression of this relay is extremely positive. Firstly, it doesn't feel cheap. It has a good weight and feels extremely heavy duty, with very thick plastic and a grommet that is so tight I struggled to get the two halves together (do it before wiring and/or installing or you'll almost surely have to take it back out). I seriously doubt I could get them apart. In addition to that I was surprised to see that the wire was all solid copper strands and what appears to be 12 gauge. I know it states that in the title/description, but to be honest I didn't actually expect it. Typically when corners are cut, cheap wiring is a very common place to do it. Given the HD feel, solid copper wires, and what appears to be solid waterproofing, I have no reason to believe they skimped on the inside.

Also on a side note I appreciate the wiring diagrams in the item description. I have zero auto electrical knowledge but wanted to wire fog lamps up in parallel to my headlights but didn't want the lights drawing power from my headlight switch, so I T'd the power of this relay off the headlight lead and now only the relay draws power from it, as opposed to both fog bulbs. It's much much safer and should prolong the life of an expensive 45-year-old light switch.

I will almost surely buy another of these when I add another external accessory.
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Reviewed in the United States on December 25, 2023
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