--- product_id: 118426875 title: "Rayex LD-12F-R Plastic Enclosed-Style Relay, Spdt, 12V, 40A, 87 Ohms Coil, 5 Pin, 1.10\" Width, 1.10\" Length (Pack of 2)" brand: "rayex" price: "฿924" currency: THB in_stock: true reviews_count: 7 category: "Rayex" url: https://www.desertcart.co.th/products/118426875-rayex-ld-12f-r-plastic-enclosed-style-relay-spdt-12v store_origin: TH region: Thailand --- # 40A high current capacity 12V coil voltage for automotive-grade power 5-pin quick connect terminals Rayex LD-12F-R Plastic Enclosed-Style Relay, Spdt, 12V, 40A, 87 Ohms Coil, 5 Pin, 1.10" Width, 1.10" Length (Pack of 2) **Brand:** rayex **Price:** ฿924 **Availability:** ✅ In Stock ## Summary > ⚡ Upgrade your ride with relay power that never quits! ## Quick Answers - **What is this?** Rayex LD-12F-R Plastic Enclosed-Style Relay, Spdt, 12V, 40A, 87 Ohms Coil, 5 Pin, 1.10" Width, 1.10" Length (Pack of 2) by rayex - **How much does it cost?** ฿924 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/118426875-rayex-ld-12f-r-plastic-enclosed-style-relay-spdt-12v) ## Best For - rayex enthusiasts ## Why This Product - Trusted rayex brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** 500V dielectric strength guarantees robust insulation and safety under heavy loads - • **Precision Control:** SPDT contact form offers versatile switching options for complex circuits - • **Compact & Efficient:** Slim 1.10" x 1.10" footprint fits tight spaces without compromising power - • **Seamless Connectivity:** 5-pin quick connect terminals ensure fast, reliable installation - • **Powerhouse Performance:** Handles up to 40 amps for demanding automotive and industrial applications ## Overview The Rayex LD-12F-R is a compact, plastic-enclosed SPDT relay designed for 12V automotive and industrial use, supporting up to 40 amps with a durable 78Ω coil and quick connect 5-pin terminals. Engineered for reliable switching in critical systems like motors and anti-lock brakes, it combines high dielectric strength and a space-saving design to deliver professional-grade performance. ## Description Commonly used in automotive applications or direct connection with cell motors, transmission, and anti-lock braking systems. Review: inCommand replacements - Perfect replacement for my RV's inCommand relays, once the metal tabs are removed with some simple pry work. (Save one tab as a handy extractor tool.) Review: quality - could not ask for anything better ## Features - Contact form: spdt - Coil resistance: 78ω - Coil voltage: 12Vdc - Number of pins: 5 and quick connect terminals - Dielectric strength (between contact and coil): 500Vdc ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B06WGS64BC | | Best Sellers Rank | #57,426 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #28 in Electromechanical Relays | | Brand | Rayex | | Coil Resistance | 78 Ohms | | Coil Voltage | 12 Volts | | Connector Type | Quick Connect | | Contact Current Rating | 40 Amps | | Contact Type | Spdt | | Current Rating | 40 Amps | | Date First Available | September 7, 2018 | | Item Weight | 2.82 ounces | | Item model number | LD-12F-R | | Manufacturer | Rayex Electronics | | Maximum Switching Current | 40 Amps | | Minimum Switching Voltage | 12 Volts (DC) | | Mounting Type | Surface Mount | | Operation Mode | Automatic | | Package Dimensions | 3.46 x 3.11 x 0.12 inches | | Wattage | 480 watts | ## Product Details - **Brand:** Rayex - **Connector Type:** Quick Connect - **Contact Type:** Spdt - **Current Rating:** 40 Amps - **Mounting Type:** Surface Mount ## Images ![Rayex LD-12F-R Plastic Enclosed-Style Relay, Spdt, 12V, 40A, 87 Ohms Coil, 5 Pin, 1.10" Width, 1.10" Length (Pack of 2) - Image 1](https://m.media-amazon.com/images/I/61cQSfOXNyL.jpg) ![Rayex LD-12F-R Plastic Enclosed-Style Relay, Spdt, 12V, 40A, 87 Ohms Coil, 5 Pin, 1.10" Width, 1.10" Length (Pack of 2) - Image 2](https://m.media-amazon.com/images/I/813m3I3+MyL.jpg) ![Rayex LD-12F-R Plastic Enclosed-Style Relay, Spdt, 12V, 40A, 87 Ohms Coil, 5 Pin, 1.10" Width, 1.10" Length (Pack of 2) - Image 3](https://m.media-amazon.com/images/I/81QPiqlLI4L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ inCommand replacements *by H***N on March 4, 2026* Perfect replacement for my RV's inCommand relays, once the metal tabs are removed with some simple pry work. (Save one tab as a handy extractor tool.) ### ⭐⭐⭐⭐⭐ quality *by R***Z on November 22, 2025* could not ask for anything better ### ⭐⭐⭐⭐⭐ Rv slide out problem solved *by R***E on June 5, 2023* RV slide out would extend but not retract. Replacing the relay for the retraction circuit solved the problem. The RV repair shop would have chatged $250 to trace the problem and replace this relay. Next time your slide will go out but not in or in but not out, look at the controller board and find the input and output slide out relays. Swap them and if the slide out now retracts but no longer extends them the relay that works is good and the other one is bad. Buy two they are cheap. In the future you will have a spare. --- ## 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.co.th/products/118426875-rayex-ld-12f-r-plastic-enclosed-style-relay-spdt-12v](https://www.desertcart.co.th/products/118426875-rayex-ld-12f-r-plastic-enclosed-style-relay-spdt-12v) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-04-27*