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ONLINE LED STORE 5 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

4.7 out of 5 stars 838 ratings

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  • 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).
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Frequently bought together

  • ONLINE LED STORE 5 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
  • +
  • 10 Pack - EPAuto 12V-DC ATC/ATO 12 AWG In-Line Fuse Holder for 30A fuses
  • +
  • Nilight 10 Pack NI-FH01 Inline Holder 14AWG Wiring Harness ATC/ATO 30AMP Blade Automotive Fuse Holder-10, 2 Years Warranty
Total price: $43.07
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ONLINE LED STORE 5 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
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Customer Rating 4.7 out of 5 stars (838) 4.7 out of 5 stars (1834) 4.8 out of 5 stars (971) 4.8 out of 5 stars (67) 4.7 out of 5 stars (778) 4.6 out of 5 stars (1278)
Price $23.95 $25.00 $12.95 $21.68 $14.95 $19.95
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Product Description

THE RIGHT TOOL FOR THE JOB

Bosch style relays are the standard relay in custom wiring projects and many stock 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. That’s more than enough capacity to handle most common repairs and projects.

SIMPLIFY YOUR WIRING PROJECT

There’s nothing worse than trying to pull the back terminal off a firewall mounted relay. Ditch the terminals and the needle-nose pliers with our included sockets and pigtail wiring. The sockets, with their interlocking sides, help keep your relays secure and orderly. And, the color-coded pigtail wiring makes it easier to identify and organize your wires during the install.


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4.7 out of 5 stars
4.7 out of 5
838 global ratings
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Reviewed in the United States on March 22, 2018
Size: 5 PackVerified Purchase
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1.0 out of 5 stars Weak relays, OK sockets
By Goo on March 22, 2018
The description says that the relays are rated for 30 Amps. Based on 30+ years of working with relays, I’d say these are good for about 5 amps. Compared side-by-side with an Omron G8JN relay, the difference is like night and day. These relays are epoxied into their plastic housing. The epoxy is brittle and it breaks off at extreme temperatures, resulting in a failed seal. A G8JN relay has the plastic housing molded around the terminals to achieve a water-tight seal that lasts. These relays have small and poorly aligned contacts resulting in high resistance compared to a G8JN relay that keeps its larger contacts aligned well. The sockets that came with these relays are probably good for 30 Amps, but the relays themselves don’t come close to being good enough for 30-Amp loads. When used with a 20-amp pump motor, the relays heated up due to high contact resistance, burning the paint on the coil wire which quickly resulted in unreliable performance followed by total failure. If a 30-amp relay is really needed, the G8JN is a far better choice.
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Reviewed in the United States on July 8, 2018
Size: 1 PackVerified Purchase
13 people found this helpful
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Reviewed in the United States on March 22, 2017
Size: 1 PackVerified Purchase
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5.0 out of 5 stars Heavy Duty, SPDT, "Type B", 14 volt, 40/30Amp relay. Read my review to see what Type B means (Pin Layout)
By trbizwiz on March 22, 2017
This is a nice heavy duty relay.
This relay comes with no info. Most of the pins #'s are covered in adhesive and are difficult to read. So I will give the info here. Hopefully this will make your install easier.
There are two types of 5 pin relays. Type A and Type B. This is a Type B relay. This is noted by the position of pin 30. I was able to determine this because, lucky for me just enough of the 3 was peaking out from behind the adhesive, to allow me to determine pin 30 location. It is sort of the key or primmer to decoding relay types. (12 volt planet has a nice article on 5 pin relays, if you want professional advice. I am just a guy on amazon, so take my advice for what it is worth)

So I am wiring a reverse camera for my 2009 BMW E93 convertible. It did not come with a touch screen head unit, it came with an old school unit with only the basic digital screen. I updated my car with a 7 inch sat/nav with HD screen. Even though this car has pretty good visibility, the screen has backup camera capability, and Amazon offers a pretty cool back up camera that integrates into the tag light. So I figured why not. Well the reverse light is not a constant 12 volt, so I needed a relay to provide constant 12 volt power to the camera, and I use the reverse light as the on switch.
My set up:
Pin #30...constant 12 volt supply from a fused 15 amp supply line connected directly to my battery. BMW puts these in the trunk, right next to the tail light I am also tapping. (thanks BMW, easy peezy)
Pin #85 Ground...attach this to any ground lug on the car body
Pin #86 Switch source... for my BMW this is the black /violet wire to my tail light
Pin #87 the red wire on my camera

*****Some relays switch position #85 and #86, but form what I understand this is immaterial, because it is just either end of a switch, and so they are reversible, but your application may vary. THe pin positions for #85 ad #86 are unreadable in this relay.

The wires on this relay are much heavier gauge (12 & 16 gauge) than the 15 amp circuit I am supplying or the 2 amp draw I am using. But that is to be expected from a 40 amp relay. Just know when you buy butt end connectors, you will need them to fit a heavier gauge. Or by pass the wires and buy 6.3 mm female connectors to connect directly to the relay pins. This however will bypass the waterproofing built in to the male portion of this relay, with the actual wires on it.
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Reviewed in the United States on May 22, 2017
Size: 1 PackVerified Purchase
5 people found this helpful
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Reviewed in the United States on September 2, 2017
Size: 1 PackVerified Purchase
4 people found this helpful
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Reviewed in the United States on February 1, 2019
Size: 1 PackVerified Purchase
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