--- product_id: 291957391 title: "THE INSTALL BAY Metra E-123 Tyco Relay 12 Volt 30 Amp Each" brand: "install bay" price: "€ 46.50" currency: EUR in_stock: true reviews_count: 5 category: "Install Bay" url: https://www.desertcart.pt/products/291957391-the-install-bay-metra-e-123-tyco-relay-12-volt store_origin: PT region: Portugal --- # 12V 30A power capacity Secure, plug-and-play fit Durability tested in real conditions THE INSTALL BAY Metra E-123 Tyco Relay 12 Volt 30 Amp Each **Brand:** install bay **Price:** € 46.50 **Availability:** ✅ In Stock ## Summary > ⚡ Power up your ride with reliability you can trust! ## Quick Answers - **What is this?** THE INSTALL BAY Metra E-123 Tyco Relay 12 Volt 30 Amp Each by install bay - **How much does it cost?** € 46.50 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/291957391-the-install-bay-metra-e-123-tyco-relay-12-volt) ## Best For - install bay enthusiasts ## Why This Product - Trusted install bay brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Proven durability ensures long-term, trouble-free use 🛠️ - • **Installer-Centric Design:** Engineered with professional ease and precision in mind 👷‍♂️ - • **Plug-and-Play Installation:** Designed for a secure, hassle-free fit every time 🔧 - • **Trusted Replacement Choice:** Preferred by pros for seamless integration and dependable function 🔄 - • **Reliable 12V 30A Performance:** Handles high-demand electrical loads with ease ⚡ ## Overview The Metra E-123 Tyco Relay is a 12 Volt, 30 Amp electrical relay engineered for secure, plug-and-play installation. Built with durability tested in real-world conditions, it ensures reliable performance for automotive and specialty electrical applications. Ideal for professionals and DIYers seeking a trusted replacement relay that prevents common failures like sticky or stuck relays. ## Description NA Review: I bought these to replace the relays in my Ford Truck aftermarket headlight harness. The original relays were sticky and soon the high beam relay failed. Since I put these in, no more stuck on headlights and everything is back to normal. Build quality looks excellent. If I need more of this type of relay, these are the ones I'll be getting. Review: Direct replacement for a surprisingly hard to find relay at a decent price. Plugged into the harness and worked right away. Need a few more of these so will purchase again. ## Features - Quality assured products - Secure fit - Designed with the installer user in mind - Proven and Tested for durabilty and function in real world conditions ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000P61E36 | | Department | Electronics | | Item model number | E-123 | | Manufacturer | Metra Electronics | | Product Dimensions | 7.62 x 7.62 x 2.86 cm; 36.29 g | ## Product Details - **Connector type:** Screw - **Contact material:** Aluminum - **Contact type:** Normally Open - **Current rating:** 30 Amps - **Mounting type:** Screw Mount ## Images ![THE INSTALL BAY Metra E-123 Tyco Relay 12 Volt 30 Amp Each - Image 1](https://m.media-amazon.com/images/I/51xMaSrDd8L.jpg) ## Questions & Answers **Q: do these usually fail after 6-7 years I have it controlling my high and low beams and my lights will turn off for about 30 seconds then come back on** A: sounds like you maybe running more current than the relay is design for. A head light on a car can use 20 amps or more. Two lamps and you would be over the 30 amp rating. **Q: I bought this b/c I need to run one remote 12v wire from my car stereo to several car amplifiers. Does it matter what terminal I use for each wire?** A: Your "supply" wire (Fused 12v from the battery directly typically) is going to always go to terminal 30. Your "output' wire will be terminal 87 to all of your amplifier remote on terminals. 85 and 86 are your switch path where one will get positive 12v (stereo output remote on trigger wire I believe) when you want to the relay to connect 30 to 87, and the other will get grounded. **Q: just to confirm, base on the diagram, this is SPDT relay right?** A: Yes, this relay is a SPDT 20/30amp. **Q: what is this for?** A: Controls electrical current. Keeps fuses from blowing. I use it with my running lights on my motorcycle. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by D***M on 19 August 2012* I bought these to replace the relays in my Ford Truck aftermarket headlight harness. The original relays were sticky and soon the high beam relay failed. Since I put these in, no more stuck on headlights and everything is back to normal. Build quality looks excellent. If I need more of this type of relay, these are the ones I'll be getting. ### ⭐⭐⭐⭐⭐ Review *by J***J on 22 June 2023* Direct replacement for a surprisingly hard to find relay at a decent price. Plugged into the harness and worked right away. Need a few more of these so will purchase again. ### ⭐⭐⭐⭐⭐ Review *by B***D on 4 January 2015* Used this relay after a cheaper one blew. So far it has lasted and has worked every time. The last one used to get 'stuck' sometimes so my foglights wouldn't go off with high beams but this one clicks every time and has yet to miss! Would recommend and buy again (although I don't think I'll have to!) ## Frequently Bought Together - Metra Install E-123 Bay Tyco Relay 12 Volt 30 Amp Each - True Mods 10 Pack - Bosch Style 12V DC 5-PIN SPDT Interlocking Relay Socket Harness Base (with Wires) - HD Switch 12V 40A Waterproof Relay Replaces Tyco V23234-A1001-X036 - SPDT w/LED Indicator Light & Dielectric Grease --- ## 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.pt/products/291957391-the-install-bay-metra-e-123-tyco-relay-12-volt](https://www.desertcart.pt/products/291957391-the-install-bay-metra-e-123-tyco-relay-12-volt) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-06-06*