--- product_id: 381760555 title: "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" brand: "online led store" price: "€ 82.70" currency: EUR in_stock: true reviews_count: 5 category: "Online Led" url: https://www.desertcart.be/products/381760555-online-led-store-true-mods-1-pack-5-pin-12v store_origin: BE region: Belgium --- # 40A/30A high current rating Waterproof design 12 AWG heavy-duty wiring 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 **Brand:** online led store **Price:** € 82.70 **Availability:** ✅ In Stock ## Summary > ⚡ Stay powered, stay protected — the relay that never quits! ## Quick Answers - **What is this?** 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 by online led store - **How much does it cost?** € 82.70 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/381760555-online-led-store-true-mods-1-pack-5-pin-12v) ## Best For - online led store enthusiasts ## Why This Product - Trusted online led store brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Power That Keeps Up:** Handles up to 40 amps with ease, perfect for high-demand automotive and marine applications. - • **Plug & Play Simplicity:** Includes a harness socket with color-coded 12 AWG wires for quick, hassle-free installation. - • **Versatile Control Modes:** SPDT 5-pin design lets you switch loads on/off manually or automatically with factory signals. - • **Engineered for Longevity:** Heavy-duty construction with metal mounting tab and rugged gasket for years of trouble-free use. - • **Built to Brave the Elements:** Waterproof Bosch-style relay ensures reliable performance in wet, muddy, or marine environments. ## Overview The ONLINE LED STORE TRUE MODS 5-Pin 12V Bosch Style Waterproof Relay Kit is a rugged, high-performance automotive and marine relay designed for harsh conditions. Featuring a waterproof housing, heavy-duty 12 AWG wiring, and a 40A/30A SPDT switching capability, it delivers reliable power control for off-road vehicles, boats, and cars. The included harness socket and metal mounting tab simplify installation, making it a trusted choice for professionals and enthusiasts who demand durability and versatility. ## Description Waterproof 14V DC 5-pin Bosch Style SPDT 12V DC 40A/30A relay is perfect for off road vehicles, boats, or any automobile operating in wet or muddy conditions._The OLS PSZACCEPS178R 5-pin Bosch Style SPDT 12V DC 40A/30A waterproof automotive relay is the ideal electrical relay to be used on off-road vehicles, boats, and dirt track cars that are often exposed to wet or muddy conditions. The purchase includes the relay itself and a relay socket/harness with wires. Metal mounting tab is present on the relay for ease of installation._Basic_Brand:_ONLINE LED STORE_MPN:_EPS177R_UPC:_816165023866 Review: toyota tundra fix - good quality product saves a fortune using this with transistor and some wire. Cheap fix bi passing startup air mix removed all warning lights and got truck out of limp mode.Youtube is a lifesaver! Review: Heavy Duty, SPDT, "Type B", 14 volt, 40/30Amp relay. Read my review to see what Type B means (Pin Layout) - 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 desertcart, 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 desertcart 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. ## Features - User manual available for download under product information details - Waterproof construction - Bosch style 5-pin spdt (double single-pole throw) relay. - Switching capacity 40 A/30 A high. - Wire Specifications: Black - Earth (85), Red - VCC (30), White - Trigger (86), Yellow - N/C Output (87), and Blue - Output n/s (87) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01N66W2XF | | Best Sellers Rank | #213,834 in Automotive ( See Top 100 in Automotive ) #711 in Car Relays | | Brand | ONLINE LED STORE | | Brand Name | ONLINE LED STORE | | Coil Voltage | 12 Volts (DC) | | Connector Type | Solder | | Connector type | Solder | | Contact Current Rating | 40 Amps | | Contact Material | Silver Tin Oxide | | Contact Type | Normally Open | | Contact material | Silver Tin Oxide | | Contact type | Normally Open | | Current Rating | 40 Amps | | Current rating | 40 Amps | | Customer Reviews | 4.6 out of 5 stars 996 Reviews | | Item Weight | 0.24 Pounds | | Manufacturer | ONLINE LED STORE | | Maximum Switching Current | 40 Amps | | Minimum Switching Voltage | 12 Volts (DC) | | Model | SUVELAM | | Mounting Type | tab Mount | | Mounting type | tab Mount | | Number of Items | 1 | | Number of Packs | 1 | | Operation Mode | Automatic | | Part Number | PSZACCEPS177R | | Specification Met | IP67 | | UPC | 816165023866 | | Unit Count | 1 Count | | Wattage | 14.4 watts | ## Product Details - **Connector type:** Solder - **Contact material:** Silver Tin Oxide - **Contact type:** Normally Open - **Current rating:** 40 Amps - **Mounting type:** tab Mount ## Images ![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 - Image 1](https://m.media-amazon.com/images/I/81m2P8Wl3RL.jpg) ![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 - Image 2](https://m.media-amazon.com/images/I/71rtcuyFYHL.jpg) ![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 - Image 3](https://m.media-amazon.com/images/I/71+q+xu0rjL.jpg) ![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 - Image 4](https://m.media-amazon.com/images/I/81ReNQjiP4L.jpg) ![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 - Image 5](https://m.media-amazon.com/images/I/61UN2iwyEiL.jpg) ## Questions & Answers **Q: How many amps does it take to make the relay switch from open to closed?? I have a 1.5 amp circuit that I want to use as the switch power** A: The relay only requires about 150 milliamps @ 12 V DC to be triggered. Hope this helps. **Q: I am wanting to put in an on/off switch on a 4wheeler to the existing 12v dc auxilary jack. what wires would to to what posts on the 3 prong switch?** A: It would be better to run a new fused feed from the battery and use the accessory wire from the key switch so you always shut it off and not forget and run your battery dead. **Q: Im noticing a constant buzz from my relays. What could be the issue? Bad switch? Bad ground? too much voltage drop?** A: Are all the relays that are buzzing connected to the same trigger switch? If so, the trigger switch may be supplying power (or ground) to the relays even when in the "off" position. This is only one possibility. The relay itself may be faulty, just the likelihood of multiple units failing at the same time is slim. Please contact us directly to further troubleshoot the matter. Thanks. **Q: I am hooking up a amp to a mototcycle, the instruction says i need to use this. Why?** A: HOW MANY AMPS DOES YOUR AMPLIFIER DRAW..... IT MAY NEED ITS OWN CIRCUT BREAKER FED THUR THIS RELAY, BE CAREFULLY YOU DONT BURN THINGS UP, USE THE RIGHT SIZE WIRING AND PROTECT WITH THE RIGHT SIZE FUSE ## Customer Reviews ### ⭐⭐⭐⭐⭐ toyota tundra fix *by P***T on 27 November 2024* good quality product saves a fortune using this with transistor and some wire. Cheap fix bi passing startup air mix removed all warning lights and got truck out of limp mode.Youtube is a lifesaver! ### ⭐⭐⭐⭐⭐ Heavy Duty, SPDT, "Type B", 14 volt, 40/30Amp relay. Read my review to see what Type B means (Pin Layout) *by T***Z on 22 March 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. ### ⭐⭐⭐⭐⭐ Good Quality, Heavy Duty. *by K***N on 21 April 2018* This is a really nice heavy duty relay. I put it in my 2017 Superduty to run my auxiliary backup lights with my upfitter switches. With this relay installed I can run the auxiliary backup lights in two modes, ON when ever I want (even with the truck OFF) or make them go ON and OFF with the factory back up lights. Works great and I didn’t have to use a diode. My configuration uses two of the upfitter switches in the truck. The mounting bracket worked out nice. This relay is water proof as well, has a nice ribbed torturous path gasket. 7/16/20 Update: Two years now and still working, no issues. Thumbs up! 7/25/2023 Still going strong! 05/21/24 still working!!! I bought two of these on my original purchase, one as a spare because that’s what I do. The spare is still sitting on the shelf in my basement. ## Frequently Bought Together - 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 - 12 AWG Inline Fuse Holder - 12 Gauge Fuse Holder for 30A Blade Fuse (6 Pack) - 10 Gauge Fuse Holder - 10 AWG Inline Fuse Holder with 40 AMP ATC Blade Fuses (4pack) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.be/products/381760555-online-led-store-true-mods-1-pack-5-pin-12v](https://www.desertcart.be/products/381760555-online-led-store-true-mods-1-pack-5-pin-12v) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-10-28*