--- product_id: 2359707 title: "Supco 90370 General Purpose Fan Relay, 12 A Load Current, 24 V Coil Voltage, Single Pole Double Throw Contacts" brand: "supco" price: "£13.01" currency: GBP in_stock: true reviews_count: 13 url: https://www.desertcart.co.uk/products/2359707-supco-90370-general-purpose-fan-relay-12-a-load-current store_origin: GB region: United Kingdom --- # 12 A Load Current SPDT Contacts 24 V Coil Voltage Supco 90370 General Purpose Fan Relay, 12 A Load Current, 24 V Coil Voltage, Single Pole Double Throw Contacts **Brand:** supco **Price:** £13.01 **Availability:** ✅ In Stock ## Summary > 🔧 Power Up Your Projects with Precision! ## Quick Answers - **What is this?** Supco 90370 General Purpose Fan Relay, 12 A Load Current, 24 V Coil Voltage, Single Pole Double Throw Contacts by supco - **How much does it cost?** £13.01 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/2359707-supco-90370-general-purpose-fan-relay-12-a-load-current) ## Best For - supco enthusiasts ## Why This Product - Trusted supco brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durable Design:** Sealed enclosure ensures longevity and reliability in various environments. - • **Easy Integration:** Seamlessly fits into existing systems for hassle-free upgrades. - • **Unleash the Power:** Efficiently controls electric signals for optimal fan performance. - • **High Load Capacity:** Handles up to 12 A, making it perfect for demanding tasks. - • **Versatile Contact Forms:** Supports SPST-NO, SPST-NC, and SPDT configurations for flexible applications. ## Overview The Supco 90370 General Purpose Fan Relay is a robust electric relay designed to efficiently receive and control electric signals for fans. With a load current capacity of 12 A and a coil voltage of 24 V, it features versatile contact forms including SPST-NO, SPST-NC, and SPDT configurations, all housed in a durable sealed enclosure for enhanced reliability. ## Description Supco90370 General Purpose Fan Relay, 12 A Load Current, 24 V Coil Voltage, Single Pole Double Throw Contacts ## Features - Electric relay for receiving and controlling electric signals - Controls signals for a fan - SPST-NO, SPST-NC, SPDT 1 NO/1 NC contact forms - Sealed enclosure ## Product Details - **Contact Material:** Silver Alloy - **Contact Type:** Normally Open, Normally Closed - **Current Rating:** 12 Amps - **Mounting Type:** Pole - **Brand:** Supco ## Images ![Supco 90370 General Purpose Fan Relay, 12 A Load Current, 24 V Coil Voltage, Single Pole Double Throw Contacts - Image 1](https://m.media-amazon.com/images/I/614+MLxrEiL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Did the job, fast delivery, good value. *by A***. on Reviewed in the United States on March 22, 2014* Relay worked perfectly for Nest Thermostat controlling a gas fireplace. I also had to install a 24VAC transformer. Very simple configuration:1) The N/O switch contact side of the relay is connected across the gas fireplace switch leads.2) Three wire, 18-gauge thermostat cable (red, white, and blue connected to RH, W, and C respectively on the Nest thermostat) was fished through the wall. The Nest was located a few feet from the fireplace about eye-level on the wall. Fishing the wire through the wall was the hardest part of this install.3) Under the fireplace the wire is connected to the secondary 24VAC side of the transformer using the red RH power wire and the blue C common wire.4) The relay coil is connected to the white (W) control wire from of the nest thermostat, with the other side connected to the blue C common wire. In my install, the transformer and relay were tucked underneath the gas fireplace a couple of inches apart.5) Finally, the primary side of the transformer is fitted with a 120VAC cord (only needed to be about 8-inches long in my case) and plugged into 120VAC.6) On my Nest Thermostat, I had to lie to the thermostat and configure it for "electrical heat" rather than "gas furnace" ... I think. I did this and it works. Read it someplace.This is the 4th Nest Thermostat I have in my home but the only one on a gas fireplace, the other three are controlling two other furnaces, one with two zones, and no relay is required for those applications.Shipping was very fast on this product and I have absolutely no complaints. Would buy again... in fact, I'm about to use another of these relays to control my whole-home humidifier... as soon as I can figure out hot to get the additional wire run to the nest. That's another project. ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Great for homemade emergency lights *by V*** on Reviewed in the United States on July 26, 2024* I used your relay for my homemade emergency lighting system and it works perfectly with my LED light and auto charging battery system. ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Good price *by C*** on Reviewed in the United States on May 17, 2024* Installed it on my hvac system three months ago. Working good so far. ## Frequently Bought Together - Supco 90370 General Purpose Fan Relay, 12 A Load Current, 24 V Coil Voltage, Single Pole Double Throw Contacts - 24V 40VA Control Transformer， Primary 120, 208, 240V Secondary 24V Isolation Transformers，24V Transformer with Foot Mount for HVAC Furnace Multi Tap - Tnisesm Heavy Duty 1 Poles 30 Amp 24V AC Compressor Contactor Air Conditioner Condenser AC Definite Purpose Contactor 1P-30A-24V --- ## 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.uk/products/2359707-supco-90370-general-purpose-fan-relay-12-a-load-current](https://www.desertcart.co.uk/products/2359707-supco-90370-general-purpose-fan-relay-12-a-load-current) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-16*