Williams P500406 Limit Switch ideal for system balancing or

ideal for system balancing or temporary servicing

Is the mounting orientation critical for performance

Engineered for high-performance sealing

Engineered for high-accuracy thermal monitoring

the Danfoss NRV series delivers the hermetic seal and durability required for modern high-pressure systems

Williams P500406 Limit Switch ideal for system balancing orThe Williams P500406 Limit Switch is a critical safety component designed for precise thermal regulation in Williams Monterey top vent heaters and furnace gas valves. Engineered with a 270 degree Fahrenheit Cut Out, this Manual Reset (M R) limit switch serves as a reliable failsafe, interrupting the electrical circuit to the gas valve if internal temperatures exceed safe operating parameters. This specific HVAC high limit control is essential for