--- product_id: 1804729 title: "Intermatic T101 24-Hour Mechanical Timer Switch - 120V SPST, Indoor Metal Enclosure, Heavy Duty, Manual Override, 40 Amp - Ideal for Lights, Pumps, Fans, and HVAC Systems" brand: "intermatic" price: "€ 146.89" currency: EUR in_stock: true reviews_count: 13 category: "Intermatic" url: https://www.desertcart.de/products/1804729-intermatic-t101-24-hour-mechanical-timer-switch-120v-spst-indoor store_origin: DE region: Germany --- # 24-hour precise control 40 Amp heavy-duty load 12 daily ON/OFF cycles Intermatic T101 24-Hour Mechanical Timer Switch - 120V SPST, Indoor Metal Enclosure, Heavy Duty, Manual Override, 40 Amp - Ideal for Lights, Pumps, Fans, and HVAC Systems **Brand:** intermatic **Price:** € 146.89 **Availability:** ✅ In Stock ## Summary > ⏳ Power your day with precision and control! ## Quick Answers - **What is this?** Intermatic T101 24-Hour Mechanical Timer Switch - 120V SPST, Indoor Metal Enclosure, Heavy Duty, Manual Override, 40 Amp - Ideal for Lights, Pumps, Fans, and HVAC Systems by intermatic - **How much does it cost?** € 146.89 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/1804729-intermatic-t101-24-hour-mechanical-timer-switch-120v-spst-indoor) ## Best For - intermatic enthusiasts ## Why This Product - Trusted intermatic brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durable Metal Enclosure:** Built tough for industrial, commercial, and home use - • **Heavy-Duty 40 Amp Capacity:** Power through high-load devices with confidence - • **Up to 12 ON/OFF Operations Daily:** Customize your schedule with flexible intervals - • **Manual Override for Instant Control:** Take charge anytime with easy manual switching - • **Reliable 24-Hour Mechanical Control:** Precision timing for seamless daily automation ## Overview The Intermatic T101 Mechanical Timer Switch delivers dependable 24-hour control with up to 12 ON/OFF settings daily, supporting heavy-duty loads up to 40 amps. Its robust metal enclosure and manual override make it ideal for managing lights, pumps, fans, and HVAC systems across residential, commercial, and industrial environments. ## Description Product Description The T100 Series Mechanical Time Switch has proven it can stand the test of time. These dependable time switches can handle electrical loads up to 40 A per pole and allow for up to 12 ON/OFF operations per day. A manual override switch provides added convenience. From the Manufacturer Designed for industrial, commercial and residential applications. Highest HP ratings in the industry for loads up to 40 amps, providing direct 24 hour control of most loads. Provides 1 to 12 "On/Off" operations each day with minimum On/Off times of 1 hour. All models equipped with one "On" and one "Off" tripper. Operating Temperature Max (Degrees Celsius) = 54. Review: Nka - Works perfectly Review: Great product. - Like this alot. Easy to install. ## Features - 24-HOUR MECHANICAL CONTROL - The Intermatic T101 offers direct 24-hour control for a wide range of loads, providing reliability and precision in your daily operations. - FLEXIBLE ON/OFF OPERATIONS - With the capability of up to 12 ON/OFF operations each day, and a minimum time interval of one hour, this mechanical time switch offers versatility to meet your specific scheduling needs. - CONVENIENT MANUAL OVERRIDE - The T101 features a manual override switch, adding convenience and flexibility to your control options when needed. - INCLUDED TRIPPERS - Each unit comes equipped with one ON tripper and one OFF tripper, ensuring a complete and ready-to-use package for your electrical control requirements. - ROBUST AND TIME-TESTED DESIGN - Built for industrial, commercial, and residential applications, the T100 Series Mechanical Time Switch boasts the highest HP ratings in the industry, providing enduring performance and control for loads up to 40 amps. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00002N5FN | | Best Sellers Rank | #41,387 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #37 in Wall Timer Switches | | Brand | Intermatic | | Color | Gray | | Customer Reviews | 4.4 4.4 out of 5 stars (2,060) | | Date First Available | June 27, 2017 | | Department | Unisex-Adult | | Global Trade Identification Number | 00078275000018 | | Is Discontinued By Manufacturer | No | | Item Weight | 2.64 pounds | | Item model number | TMHDT101 | | Manufacturer | Intermatic | | Material | Metal | | National Stock Number | 6250-00-974-2502 | | Number of settings | 12 | | Product Dimensions | 3"D x 5"W x 7.75"H | | Screen Size | 8.13 Inches | | UPC | 783324975789 735090346355 078275000018 | ## Product Details - **Brand:** Intermatic - **Color:** Gray - **Material:** Metal - **Number of settings:** 12 - **Product Dimensions:** 3"D x 5"W x 7.75"H ## Images ![Intermatic T101 24-Hour Mechanical Timer Switch - 120V SPST, Indoor Metal Enclosure, Heavy Duty, Manual Override, 40 Amp - Ideal for Lights, Pumps, Fans, and HVAC Systems - Image 1](https://m.media-amazon.com/images/I/81db9+5PniL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: My timer for my pool has died. Would this product work for an outdoor, inground pool? The 220 is what I need...** A: Absoluely, this works great for in ground pools. I bought one for my 10,000 gal pool with a 1 hp pump running on 220. excellent product. **Q: I'm replacing my pool pump timer, intermatic it tells me to use wg1573-5 what model is this?** A: This number is for the timer motor only, not the timer assembly, nor the case enclosing the assembly. This little motor is what usually goes bad. It can be replaced, but it is easier to replace the whole assembly. Model T104M is the timer assembly (includes the little motor) and Model T104P3 includes the timer assembly in a metal case. This case is not recommended for outside usage. If you want to use outside, install the Model T104M in a totally enclosed plastic case. **Q: How do you determine whether you need a 110 or 240 volt timer? I don't see any indication on the old timer.** A: The instructions show the ability to connect a 110 V pool pump BUT you need a 220 V connection from the fuse box for the timer to work. The T101 is the one needed for 110 connections. **Q: can I buy more timer clips?** A: You can buy clips separately from other vendors. Just do a search for them and it should give you several options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Nka *by S***E on January 20, 2026* Works perfectly ### ⭐⭐⭐⭐⭐ Great product. *by A***R on January 14, 2026* Like this alot. Easy to install. ### ⭐⭐⭐⭐⭐ Just as heavy duty as the 30 year old timer replaced. *by J***H on July 24, 2025* The case was exactly like the 30 year old box. I simply replaced the workings. It was simple to to install and the on - off mechanism was the same as the previous timer. High quality and same controls. ## Frequently Bought Together - Intermatic T101 24-Hour Mechanical Time Switch - Reliable Control for Various Loads, 12 ON/Off Operations - Manual Override & Included Trippers, Designed for Industrial, Commercial, Residential - 156T1978A Time Switch Trippers Replacement for Intermatic Fit T100 Series Timers 2 Pack (4 ON / 4 Off / 8 Screws) - Intermatic T104 Electromechanical Timer Switch - Proven Durability, 40A Load Capacity, Versatile Scheduling, 1-12 Cycles Per Day - Manual Override, Tripper Included for Reliable Time-Based Control --- ## 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.de/products/1804729-intermatic-t101-24-hour-mechanical-timer-switch-120v-spst-indoor](https://www.desertcart.de/products/1804729-intermatic-t101-24-hour-mechanical-timer-switch-120v-spst-indoor) --- *Product available on Desertcart Germany* *Store origin: DE* *Last updated: 2026-04-25*