--- product_id: 730654689 title: "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" brand: "irhapsody" price: "₩176909" currency: KRW in_stock: true reviews_count: 5 category: "Irhapsody" url: https://www.desertcart.kr/products/730654689-5-pack-40-30-amp-12-v-dc-waterproof-relay store_origin: KR region: South Korea --- # 40/30 AMP heavy-duty current Waterproof design for durability 12 AWG tinned copper wiring 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 **Brand:** irhapsody **Price:** ₩176909 **Availability:** ✅ In Stock ## Summary > ⚡ Stay powered, stay unstoppable with IRHAPSODY relays! ## Quick Answers - **What is this?** 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 by irhapsody - **How much does it cost?** ₩176909 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/730654689-5-pack-40-30-amp-12-v-dc-waterproof-relay) ## Best For - irhapsody enthusiasts ## Why This Product - Trusted irhapsody brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Premium Wiring:** 12 AWG tinned copper wires for superior conductivity and corrosion resistance - • **Bulk Value Pack:** 5-pack bundle keeps your projects powered and ready without frequent reordering - • **Versatile Compatibility:** 5-PIN SPDT Bosch style relay fits seamlessly into most automotive systems - • **Power-packed Performance:** Handles up to 40/30 AMP for reliable heavy-duty automotive use - • **Weatherproof Reliability:** Waterproof relay and harness ensure uninterrupted operation in any condition ## Overview The IRHAPSODY 5 Pack 40/30 AMP 12 V DC Waterproof Relay and Harness features heavy-duty 12 AWG tinned copper wires and a 5-PIN SPDT Bosch style automotive relay, designed for reliable, weatherproof performance in demanding automotive applications. ## Description 12AWG Tinned Copper Wire: Pin 87a Yellow 12AWG Tinned Copper Wire: Pin 87 Blue 12AWG Tinned Copper Wire: Pin 30 Red 16AWG Tinned Copper Wire: Pin 85 Black 16AWG Tinned Copper Wire: Pin 86 White Nominal Coil Voltage: 12 V DC Coil Power: 1.8 W Coil Resistance: 80 Ω Must Operate Voltage: 68 V DC Must Release Voltage: 0.63.6 V DC Maximum Applied Voltage: 15.6 V DCContact Ratings: NO 40A 14V DC Contact Resistance: 100mMAX (at6VDC 1A) Max Switching Current: 40A Max Switching Power: 560 W Life Expectancy Electrical: 100,000 Operations (at30 Operations/minute) Life Expectancy Machanical: 10,000,000 Operations Temperature Range: -30 80 degrees Celsius Vibration Resistance: 1055Hz, 1.5mm Shock Resistance: Operations Extremes: 10g. Damage Limits: 100g Hunidity: 40% 85% Insulation Resistance: 100mΩ Min at500VDC Dielectric Strength Between Open Contacts: 500VAC (for one minute/sec) Between Contactw and coil: 750AC (for one minute/sec) Operate Tice: 7ms Release Tice: 5ms Package Content: 5 x 12 V DC waterproof relay and harness. Review: Very good Review: Received only 4 relay units instead of 5! Product description clearly says it's a "5-Pack 40/30 AMP 12V DC Waterproof Relay and Harness - Heavy Duty 12 AWG Tinned Copper" Another thing that did not meet product description is all units came with 16 AWG cables instead of 12 AWG! ## Features - manufacturer: IRHAPSODY - Item Trademark: IRHAPSODY - Item Weight: pounds, pounds, 1.10, 1.10 - Item Category: Relay ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B074FSZWVT | | Brand Name | IRHAPSODY | | Coil Resistance | 80 Ohms | | Coil Voltage | 12 Volts (DC) | | Connector Type | Solder | | Contact Current Rating | 30 Amps | | Contact Material | Copper | | Contact Type | spdt | | Current Rating | 30 Amps | | Customer Reviews | 4.7 4.7 out of 5 stars (3,364) | | Item Weight | 1.1 Pounds | | Manufacturer | IRHAPSODY | | Maximum Switching Current | 30 Amps | | Minimum Switching Voltage | 12 Volts (DC) | | Model | 13 | | Mounting Type | Socket Mount | | Operation Mode | Automatic | | Part Number | IY-5PinRelay-5 | | Unit Count | 5 Count | | Wattage | 1.8 watts | ## Product Details - **Connector type:** Solder - **Contact material:** Copper - **Contact type:** spdt - **Current rating:** 30 Amps - **Mounting type:** Socket Mount ## Images ![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 - Image 1](https://m.media-amazon.com/images/I/71eqechNgzL.jpg) ![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 - Image 2](https://m.media-amazon.com/images/I/619Yi6dgqZL.jpg) ![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 - Image 3](https://m.media-amazon.com/images/I/61KQGT2KqZL.jpg) ![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 - Image 4](https://m.media-amazon.com/images/I/61rx+3A-bVL.jpg) ![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 - Image 5](https://m.media-amazon.com/images/I/61nhrNUV22L.jpg) ## Questions & Answers **Q: Is this solid state?** A: It has only an electromagnet (coil) which when activated pulls an armature which pulls contacts together, completing the circuit. Basically it is a switch. This is not transistorized **Q: Where are these relays made?** A: Based on the price I assume they are made in china. They are high quality. I run them on my race car and haven't had a problem. **Q: Will this relay work on a mercury force outboard 40hp 1998?** A: This is a universal 12v relay u will need to wire to it what ever you want to operate It's not a specific relay to you application **Q: How long does it take to ship** A: Few days ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by C***Z on 15 August 2025* Very good ### ⭐ Review *by S***Y on 30 July 2022* Received only 4 relay units instead of 5! Product description clearly says it's a "5-Pack 40/30 AMP 12V DC Waterproof Relay and Harness - Heavy Duty 12 AWG Tinned Copper" Another thing that did not meet product description is all units came with 16 AWG cables instead of 12 AWG! ### ⭐⭐⭐⭐⭐ Review *by D***K on 23 March 2026* ​I recently used these relays for a complex 12V project involving high-draw accessories, and they have performed flawlessly. The build quality is impressive for the price point, and they feel much more substantial than the standard non-waterproof versions. ​What Stands Out: ​True Weatherproofing: The rubber seals on the sockets fit tightly around the relay base. This is a game-changer for any wiring located in an engine bay or exposed chassis area where moisture and road grime are inevitable. ​Heavy-Duty Pigtails: The wiring leads are high-quality and pre-stripped, which saved me a significant amount of prep time. The gauge is appropriate for the 40/30 AMP rating, handling the load without any noticeable heat buildup. ​Secure Mounting: The integrated metal mounting tabs are sturdy and don't flex easily, allowing for a very clean and secure installation on a firewall or inner fender. ​Clear Wiring Logic: The standard 5-pin SPDT (Single Pole Double Throw) configuration makes them incredibly versatile for both normally open and normally closed applications. ​Final Verdict: ​Whether you are setting up auxiliary lighting, fuel pumps, or custom cooling fans, this 5-pack offers incredible value. They provide peace of mind knowing the connections are protected from the elements. I’ll definitely be keeping a few of these as spares for future projects. ## Frequently Bought Together - irhapsody 5 Pack 40/30 AMP 12V DC Waterproof Relay and Harness - Heavy Duty 12 AWG Tinned Copper Wires, 5-PIN SPDT Automotive Relay - 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.kr/products/730654689-5-pack-40-30-amp-12-v-dc-waterproof-relay](https://www.desertcart.kr/products/730654689-5-pack-40-30-amp-12-v-dc-waterproof-relay) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-05-18*