--- product_id: 138876120 title: "Endurance Pro 90-T40F3 Class 2 Transformers Thermostat Energy Limiting with Foot Mount, 24V Replacement for White Rodgers Emerson" brand: "endurance pro" price: "€ 16.84" currency: EUR in_stock: false url: https://www.desertcart.pt/products/138876120-endurance-pro-90-t40f3-class-2-transformers-thermostat-energy-limiting store_origin: PT region: Portugal --- # 24V Power Corded Electric Easy Installation Endurance Pro 90-T40F3 Class 2 Transformers Thermostat Energy Limiting with Foot Mount, 24V Replacement for White Rodgers Emerson **Brand:** endurance pro **Price:** € 16.84 **Availability:** ❌ Out of Stock ## Summary > πŸ”§ Transform Your Control Game! ## Quick Answers - **What is this?** Endurance Pro 90-T40F3 Class 2 Transformers Thermostat Energy Limiting with Foot Mount, 24V Replacement for White Rodgers Emerson by endurance pro - **How much does it cost?** € 16.84 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/138876120-endurance-pro-90-t40f3-class-2-transformers-thermostat-energy-limiting) ## Best For - endurance pro enthusiasts ## Why This Product - Trusted endurance pro brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Risk-Free Purchase:** Comes with a 1-year warranty for peace of mind. - β€’ **Durable Construction:** Built for industrial applications, ensuring longevity and reliability. - β€’ **Powerful Performance:** Designed for 24V AC control systems, ensuring reliable operation. - β€’ **User-Friendly Design:** Color-coded leads simplify installation for a hassle-free setup. - β€’ **Versatile Compatibility:** Replaces various transformers with equal or smaller VA ratings. ## Overview The Endurance Pro 90-T40F3 Class 2 Transformers Thermostat is a robust and versatile solution for your HVAC needs, designed to operate seamlessly in 24V AC control systems. With easy installation features and a 1-year warranty, it’s the perfect choice for professionals seeking reliability and efficiency. ## Description Endurance Pro 90-T40F3 Class 2 Transformers Thermostat Energy Limiting with Foot Mount, 24V Replacement for White Rodgers Emerson - desertcart.com ## Features - [Product description]: Endurance Pro 90-T40F3 Class 2 Transformers Thermostat, Energy Limiting with Foot Mount, 24V Replacement for White Rodgers Emerson. The transformers are designed for use in 24, 12, or 2.5 Volts AC control system, including air conditioning circuits, thermostats, gas valves, relays and or other applications that do not exceed the listed ratings. It can be used to replace any transformers of same primary voltage and equal or smaller VA ratings. - [Specification]: Primary: 120/208/240V, 50/60Hz, White, Black, Red, Orange, Secondary: 24V, 40VA, Blue, Brown - [Usage]: For industrial, heating and air conditioning controls applications. Foot Mounting - [Ease of use]: Color coded primary leads for easy installation. Instructions included. - [Risk free shopping]: This part by Endurance Pro come with a 1 year, no questions asked, no hassle war ranty. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07RS5C41J | | Additional Features | Low Voltage | | Best Sellers Rank | #885,870 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #740 in Home Thermostat Accessories | | Brand | Endurance Pro | | Brand Name | Endurance Pro | | Color | Black | | Connectivity Protocol | BACnet MS/TP | | Connectivity Technology | Wired | | Control Method | Touch | | Control Type | Voice Control | | Controller Type | touch | | Customer Reviews | 4.4 out of 5 stars 466 Reviews | | Display Type | touchscreen | | Included Components | Foot Mount, Transistor, Diode, Capacitor | | Item Weight | 1.3 pounds | | Manufacturer | Endurance Pro | | Manufacturer Part Number | 6080-110: 90-T40F3, 40301F | | Model Name | Endurance Pro 90-T40F3 Class 2 Transformers Thermostat Energy Limiting with Foot Mount, 24V Replacement for White Rodgers Emerson Model Name Endurance Pro 90-T40F3 Class 2 Transformers Thermostat Energy Limiting with Foot Mount, 24V Replacement for White Rodgers Emerson See more | | Model Number | 90-T40F3, 40301F, 90T40F3 | | Mounting Type | Foot Mount | | Number of Items | 1 | | Number of Packs | 1 | | Power Source | Corded Electric | | Product Style | Industrial | | Special Feature | Low Voltage | | Specific Uses For Product | Air Conditioning Circuits, Thermostats, Gas Valves, Relays | | Temperature Control Type | Manual | | UPC | 816325013409 | | Unit Count | 1 Count | | Voltage | 24 volts | ## Product Details - **Brand:** Endurance Pro - **Color:** Black - **Controller Type:** touch - **Special Feature:** Low Voltage ## Images ![Endurance Pro 90-T40F3 Class 2 Transformers Thermostat Energy Limiting with Foot Mount, 24V Replacement for White Rodgers Emerson - Image 1](https://m.media-amazon.com/images/I/61kKE1SQMmL.jpg) ![Endurance Pro 90-T40F3 Class 2 Transformers Thermostat Energy Limiting with Foot Mount, 24V Replacement for White Rodgers Emerson - Image 2](https://m.media-amazon.com/images/I/610x41qEGwL.jpg) ![Endurance Pro 90-T40F3 Class 2 Transformers Thermostat Energy Limiting with Foot Mount, 24V Replacement for White Rodgers Emerson - Image 3](https://m.media-amazon.com/images/I/619k5NgZazL.jpg) ![Endurance Pro 90-T40F3 Class 2 Transformers Thermostat Energy Limiting with Foot Mount, 24V Replacement for White Rodgers Emerson - Image 4](https://m.media-amazon.com/images/I/61dLnFxT7vL.jpg) ![Endurance Pro 90-T40F3 Class 2 Transformers Thermostat Energy Limiting with Foot Mount, 24V Replacement for White Rodgers Emerson - Image 5](https://m.media-amazon.com/images/I/61B6RDYr6bL.jpg) ## Questions & Answers **Q: Is the blue or brown wire common on 24v side** A: There is no "common" on the 24 vac side. The 24 vac side (secondary) is electrically isolated from the input side (primary). **Q: Can this be used for 18 volts AC and no more than 1.5 amps** A: Yes, but not easily. The safe & easy way would be to use a variable transformer: https://www.amazon.com/Mophorn-Variable-Transformer-Voltage-Converter/dp/B07XKXQXWL/ref=sr_1_6?dchild=1&keywords=variable+transformer&qid=1594088888&s=electronics&sr=1-6 **Q: Is the output 24 v ac volts** A: yes **Q: Can this be hooked up to both a relay and the c/r for thermostat? If so how?** A: If you're wanting to energize a relay along with the contactor then that shouldn't be a problem. Make sure the coil of the contactor and relay combined are below the transformer VA capacity and that the relay has a 24vac coil. With that you should be able to connect the relay coil in parallel with the contactor coil. --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/138876120-endurance-pro-90-t40f3-class-2-transformers-thermostat-energy-limiting](https://www.desertcart.pt/products/138876120-endurance-pro-90-t40f3-class-2-transformers-thermostat-energy-limiting) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-10-27*