Siemens Line Volt Mechanical Tstat: 15° to 55°F, Steel, Fixed, 5°F

The SIEMENS 134-1504 is a freeze protection indoor single-stage control. It prevents pipes and equipment from freezing by activating heating systems when temperatures drop between 15° and 55°F. Common applications include warehouses, boiler rooms, and mechanical spaces requiring reliable low-temperature monitoring.

The SIEMENS 134-1504 features a DPST switch action (open/close on rise), fixed 5°F differential, and temperature control range of 15° to 55°F. It operates at 120 to 240V AC, has a 20 ft capillary with 20 ft x 1/8 in bulb, and a steel enclosure. The fixed differential ensures consistent freeze protection without adjustment.

3G Electric supplies the SIEMENS 134-1504 line volt mechanical thermostat worldwide. As a global industrial distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time; we source and deliver this freeze protection control to any country.

Mount the steel enclosure on a vibration-free surface near the protected area. Route the 20 ft capillary bulb to sense air temperature at the coldest point. Wire the DPST switch per local codes for 120 to 240V AC loads. Set the dial between 15° and 55°F; the fixed 5°F differential activates heating on temperature drop.