--- product_id: 244129329 title: "Relay 250A, 12V Continuous Duty SPDT 5-pin High Power Relay" brand: "irhapsody" price: "$37.18" currency: USD in_stock: true reviews_count: 8 category: "I Rhapsody" url: https://www.desertcart.us/products/244129329-relay-250a-12v-continuous-duty-spdt-5-pin-high-power store_origin: US region: United States of America --- # 250A max current - powerhouse relay 12V nominal coil voltage - vehicle-ready M8 stud terminals - heavy-duty secure fit Relay 250A, 12V Continuous Duty SPDT 5-pin High Power Relay **Brand:** irhapsody **Price:** $37.18 **Availability:** ✅ In Stock ## Summary > ⚡ Power your ride with the relay that never quits! ## Quick Answers - **What is this?** Relay 250A, 12V Continuous Duty SPDT 5-pin High Power Relay by irhapsody - **How much does it cost?** $37.18 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/244129329-relay-250a-12v-continuous-duty-spdt-5-pin-high-power) ## 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 - • **Massive 250A Capacity:** Handles high current loads effortlessly—perfect for split charging and demanding automotive setups. - • **Unmatched Reliability:** 1.8W coil power with 80Ω resistance ensures longer life and less heat than typical 2.4W or 4.8W relays. - • **Effortless Installation:** Standard 5-pin SPDT design with M8 screw terminals for quick, secure mounting and compatibility. - • **Precision Voltage Control:** Operates smoothly between 8V pickup and 1.2V dropout for consistent performance under varying conditions. - • **Rugged Build for Extreme Conditions:** Rated for -30°C to +80°C, built to thrive in harsh environments without compromise. ## Overview The iRhapsody Relay 250A is a heavy-duty 12V SPDT relay designed for high current automotive applications. Featuring a low-power 1.8W coil with 80Ω resistance, it offers superior reliability and efficiency compared to common relays. With a robust 250A switching capacity, M8 stud terminals, and a wide operating temperature range, it’s ideal for split charging and demanding vehicle electrical systems. ## Description 12 V DC 250 Amp Split Charge Relay Heavy Duty 5 Pin SPDT (Single Pole Double Throw) relay Nominal coil voltage: 12 V DC Pickup voltage: 8 V DC Dropout voltage: 1.2 V DC Maximum applied voltage: 14 V DC Max Switching Current: 250A Max Switching Voltage: 14 V DC Temperature Range: -30 ~ +80 degrees Celsius Feature 1), Advantage - coil power: 1.8W; coil resistance: 80 ohms. It is more reliable than 2.4W (60 ohms) and 4.8W (30 ohms) relays on the market. 2), Large capacity: 250 amp high current carrying capacity, heavy duty make/break relay. 3), Ideal for split charging or any vehicle needing a high power relay. Package Content: 1 x 250 Amp 5 Pin Relay Review: Charge 50 amps to shore power deep cycle battery - Our power went out, to keep our bed warm, I used a 600 watt pure sine wave inverter all night long to power our king size electric blanket. The voltage on my one122 amp hour deep cycle battery was down from 12.4 to 12.2 by the morning. The next day I charged my deep cycle battery with our car. It has this relay with some extra wires to make a quick charger, using your car as an emergency charger battery charger. We use my deep cycle battery for emergency lighting in four rooms, power my wife's electric recliner and run our 60 inch TV during a power outage. Now our 160 watt electric blanket. A blue flame heater is used for back up heat in a well vented room. 1 20 lb. tank, one day of heat. We have 3 for emergency heat. We have power outages 3 to 4 times a year where I live. If the power remains down, I can charge my deep cycle battery with the alternator from my car. A disconnect switch is needed to remove the engine's battery from the cars electrical system after you start the car. I used this RELAY to disconnect the engine battery and charge my shore power deep cycle battery. When you disconnect the engine battery, the RELAY will switch to the shore power battery, and all of the charging power will go to the shore power battery. It gets the full charge it can take. I charged my battery at 50 amps for 2 minutes, then it dropped to 30 amps. I ran my car at an idle for 20 minutes for a test. It worked fine. I am ready for a cold night. It feels good. Inverter 60 bucks switch $13.00, wire $20.00, battery $90.00 at Walmart ($185.00 + blanket King 95.00 = $280.00). We had the battery, wire and the king size blanket already. Our cost about $95.00 Review: Great solenoid for an RV to put between alternator, DC-DC charger, and lithium batteries - Disclaimer: I am not an automotive electronics professional. However, our RV's stock solenoid that connects the alternator/starter-battery and the house-batteries had failed, and our house batteries would no longer charge while driving. Instead of replacing with another stock solenoid, I switched to this 5-pin SPDT relay, in order to add one new feature without having to lose any existing functionality. We have replaced the house batteries from AGM to Lithium, and the concern with lithium batteries is that since they have such low internal resistance (meaning they charge very fast), they could draw too many amps from your alternator then you really want (i.e. overheating). To remedy this, we plan to add a DC-DC charger to limit the draw from the alternator before the lithium batteries take the amps. However, we still want to keep the "Battery Boost Button" functionality in the RV. This relay/solenoid allows you to do those things. Things that would be helpful for this relay: - you will need 2 insulated female plugs to connect thin wires to 85/86. (would be helpful if included) - the leads for 87A and 87B are quite close to each other, I'm nervous about a short, it would be nice if there was a physical separator between leads to prevent that ## Features - Our coil power is 1.8W, and coil resistance is 80ohms. It is more reliable than 2.4W (60 ohms) and 4.8W (30 ohms) relays on the market - Large capacity, high current carrying capacity, heavy-duty make/break relay. But never go beyond its capabilities, try to stay 10 to 15% below what the rate is for - Rated voltage: 12vdc; Pickup voltage: 8v; Dropout voltage: 1.2v - The size of the round stud terminals: M8/8mm - Ideal for split charging or any vehicle needing a high power relay ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08F2G1J9D | | Best Sellers Rank | #5,198 in Automotive ( See Top 100 in Automotive ) #2 in Automotive Replacement Accessory Power Relays | | Brand | iRhapsody | | Brand Name | iRhapsody | | Coil Resistance | 80 Ohms | | Coil Voltage | 12 Volts | | Connector Type | Screw | | Contact Current Rating | 250 Amps | | Contact Material | Copper | | Contact Type | Normally Open & Normally Closed | | Current Rating | 250 Amps | | Customer Reviews | 4.5 out of 5 stars 100 Reviews | | Manufacturer | IRHAPSODY | | Minimum Switching Voltage | 12 Volts | | Model | AutoRelay-12V250A1P-5PIN | | Mounting Type | Screw Mount | | Operation Mode | Off | | Part Number | AutoRelay-12V250A1P-5PIN | | Specification Met | CE, RoHS | | Warranty Description | 1 year | | Wattage | 1.8 watts | ## Product Details - **Connector Type:** Screw - **Contact Material:** Copper - **Contact Type:** Spdt - **Current Rating:** 250 Amps - **Mounting Type:** Screw Mount ## Images ![Relay 250A, 12V Continuous Duty SPDT 5-pin High Power Relay - Image 1](https://m.media-amazon.com/images/I/61K9HCCG4tL.jpg) ![Relay 250A, 12V Continuous Duty SPDT 5-pin High Power Relay - Image 2](https://m.media-amazon.com/images/I/61YDjAFARvL.jpg) ![Relay 250A, 12V Continuous Duty SPDT 5-pin High Power Relay - Image 3](https://m.media-amazon.com/images/I/61LmK7Q6xIL.jpg) ![Relay 250A, 12V Continuous Duty SPDT 5-pin High Power Relay - Image 4](https://m.media-amazon.com/images/I/61-hmp8gfWL.jpg) ![Relay 250A, 12V Continuous Duty SPDT 5-pin High Power Relay - Image 5](https://m.media-amazon.com/images/I/51ShSPeJuXL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Charge 50 amps to shore power deep cycle battery *by C***M on January 31, 2023* Our power went out, to keep our bed warm, I used a 600 watt pure sine wave inverter all night long to power our king size electric blanket. The voltage on my one122 amp hour deep cycle battery was down from 12.4 to 12.2 by the morning. The next day I charged my deep cycle battery with our car. It has this relay with some extra wires to make a quick charger, using your car as an emergency charger battery charger. We use my deep cycle battery for emergency lighting in four rooms, power my wife's electric recliner and run our 60 inch TV during a power outage. Now our 160 watt electric blanket. A blue flame heater is used for back up heat in a well vented room. 1 20 lb. tank, one day of heat. We have 3 for emergency heat. We have power outages 3 to 4 times a year where I live. If the power remains down, I can charge my deep cycle battery with the alternator from my car. A disconnect switch is needed to remove the engine's battery from the cars electrical system after you start the car. I used this RELAY to disconnect the engine battery and charge my shore power deep cycle battery. When you disconnect the engine battery, the RELAY will switch to the shore power battery, and all of the charging power will go to the shore power battery. It gets the full charge it can take. I charged my battery at 50 amps for 2 minutes, then it dropped to 30 amps. I ran my car at an idle for 20 minutes for a test. It worked fine. I am ready for a cold night. It feels good. Inverter 60 bucks switch $13.00, wire $20.00, battery $90.00 at Walmart ($185.00 + blanket King 95.00 = $280.00). We had the battery, wire and the king size blanket already. Our cost about $95.00 ### ⭐⭐⭐⭐⭐ Great solenoid for an RV to put between alternator, DC-DC charger, and lithium batteries *by A***E on September 9, 2024* Disclaimer: I am not an automotive electronics professional. However, our RV's stock solenoid that connects the alternator/starter-battery and the house-batteries had failed, and our house batteries would no longer charge while driving. Instead of replacing with another stock solenoid, I switched to this 5-pin SPDT relay, in order to add one new feature without having to lose any existing functionality. We have replaced the house batteries from AGM to Lithium, and the concern with lithium batteries is that since they have such low internal resistance (meaning they charge very fast), they could draw too many amps from your alternator then you really want (i.e. overheating). To remedy this, we plan to add a DC-DC charger to limit the draw from the alternator before the lithium batteries take the amps. However, we still want to keep the "Battery Boost Button" functionality in the RV. This relay/solenoid allows you to do those things. Things that would be helpful for this relay: - you will need 2 insulated female plugs to connect thin wires to 85/86. (would be helpful if included) - the leads for 87A and 87B are quite close to each other, I'm nervous about a short, it would be nice if there was a physical separator between leads to prevent that ### ⭐⭐⭐⭐⭐ HD Relay *by J***E on April 23, 2026* Received them haven’t used any yet , looks like a well made product. ## Frequently Bought Together - irhapsody Relay 250A, 12V Continuous Duty Relay, 5 Pin Starter Relay, Spdt High Current High Power On/Off Control Relay, Split Charge Heavy Duty Relay Switch - Blue Sea Systems 5026 ST Blade Fuse Block 12 Circuit with Ground and Cover - RED WOLF 60Amp Circuit Breaker for Boat Trolling Motor Marine ATV Trailer Vehicles Stereo Audio Electronic Battery Solar System Inline Fuse with Manual Reset Switch Waterproof DC 12V-48V --- ## 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.us/products/244129329-relay-250a-12v-continuous-duty-spdt-5-pin-high-power](https://www.desertcart.us/products/244129329-relay-250a-12v-continuous-duty-spdt-5-pin-high-power) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-16*