T104M Mechanical Time Switch Mechanism Only — Open-Box, 13% Off

【Industry Leader】Having served 2.64 million households and earned their trust, we offer a 5-year warranty on our products.

【High Load Capacity:】We achieve the industry's best 40A electrical load per pole, providing safe and reliable time control for numerous devices.

【All-weather control】Minimum switching interval of 1 hour, with flexible scheduling of up to 12 switching operations within a 24-hour period.

【Product Specifications】208-277VAC (240V) DPST, includes 2 sets of switch trip units, operating temperature range: -40°C to 130°C

【Compatible Models】T104M can replace T104MD89 T104 T104R T104R3 T104P3 T10000R T10004R T10004RT1 T10004RT3 T20004R T21004R T30000R5 T30004R T3040 1R T30404R T32404R T30604R T40004R T40404R T40004RT1 T40004RT3 PF1202T PF1112T PF1222TB PF1222TB1 J1104R WH40 WH40D89 WH40DL3 internal mechanism

【Product Maintenance】Applying metal maintenance products to the bearings and gears of the T104M timer effectively resolves failures to turn on/off, operational delays, and motor stalls, while extending the product's service life.

【Widely Used】T104M is designed for high-power equipment—including pool pumps, water heaters, outdoor lighting, irrigation systems, spa equipment, ventilation systems, and filters—delivering stable and reliable automated control for residential, commercial, and industrial applications.

Take Control of Your Energy Costs with the T104M Heavy-Duty Mechanical Time Switch The T104M is a robust, electromechanical time switch mechanism designed for reliable 24/7 automation of high-power appliances. Engineered for demanding residential, commercial, and industrial applications, this timer delivers precise control to help you save energy and automate operations effortlessly. Designed for High-Power Applications This 40A, 208-277 VAC, DPST (Double-Pole, Single-Throw) switch is built to handle heavy loads with ease. It is the ideal choice for automating a wide range of equipment, including: Pool Pumps: Schedule filtration cycles to maintain water clarity and efficiency. Water Heaters: Program operation during off-peak hours to reduce electricity costs. HVAC Fans & Ventilation Systems: Manage air circulation in commercial buildings or agricultural settings. Outdoor Lighting & Irrigation Systems: Provide all-weather control for landscape lighting and sprinklers. Spa Equipment & Filter Systems: Automate run times for convenience and energy savings. Key Features for Unmatched Reliability 24-Hour Dial with 12 On/Off Settings: Maximize flexibility by programming up to 12 operations per day. The clear, easy-to-set dial allows for precise scheduling with a 1-hour minimum setting​ for each event. Heavy-Duty Construction: With a metal mechanism and proven electromechanical design, the T104M ensures long-lasting performance under continuous use. It supports resistive loads up to 40A at 208-277V AC, making it suitable for a broad range of high-power devices. Manual Override Switch: Easily toggle equipment ON or OFF without disrupting your programmed schedule—ideal for temporary adjustments or testing. DPST Switching: Safely control two hot lines simultaneously, providing complete circuit isolation for enhanced safety. Easy Installation & Maintenance Notes The T104M is a mechanism-only​ unit, designed for installation in a standard wall box or a weatherproof enclosure​ for outdoor use (e.g., controlling pool pumps or landscape lighting). For optimal performance, periodic maintenance of moving parts such as gears and bearings with appropriate products is recommended to prevent sticking or delay issues. Why Choose the T104M? has been a leader in timing controls for decades, and the T104M continues that tradition of durability and precision. Whether you’re a homeowner looking to automate a pool pump, a facility manager optimizing HVAC energy consumption, or a contractor needing a dependable timer for commercial lighting, the T104M delivers stable, all-weather control​ you can count on.