The Functional Devices RIBT243B is a heavy-duty

The LF174A series is designed to handle temperatures up to 250°F (121°C)

Dual Sensor Input: Specialized dual input sensor configuration allows for more accurate sampling across high-side lines

manifold pressure regulator springs

The L145-30 designation means this is a limit control that opens the electrical circuit when it senses a temperature of 145°F and automatically closes (resets) after the temperature drops by 30°F

Modine 5H0799460000 Limit Switch 323055-751 The Functional Devices RIBT243B isThe Modine 3H0799460000 (L137F M R) is a critical manual reset high limit switch engineered for commercial unit heaters and HVAC safety circuits. Designed to monitor heat exchanger temperatures, this Modine OEM replacement part interrupts the electrical circuit if the internal temperature exceeds its 137F set point. As a high limit control, it prevents equipment damage and potential fire hazards by shutting down the gas valve in the event of an