Resideo L4029E1045/B M/R Limit Switch Control Bulk Open On Rise 240°F

The Resideo L4029E1045/B Limit Control is a safety device of high quality designed for HVAC systems, particularly furnaces and boilers. It has a manual override which functions at 240°F as a safety mechanism that powers off if it heats up to the specified level of heat. It has an insertion element of 3" and works at a nominal temperature of 190°F. It incorporates a typically SPST switch that gets opened when the temperature reaches the set value and it cannot be operated without being reset.