while the threaded hubs allow it to be mounted directly through a standard 1/2-inch knockout on an electrical box

Durable Rubber Construction: Optimized for longevity and a tight seal at temperatures up to 250°F

which is the standard size for most large refrigerant drums and tanks

marginal (orange)

York S1-025-37419-000 Limit Switch while the threaded hubs allowThe York S1 025 37419 000 Limit Switch is a critical OEM safety component designed for precise thermal regulation in York HVAC systems. As an L50 10F auto limit switch, this device operates on a fixed temperature differential, featuring a 50F opening temperature and a 40F closing temperature. This SPST (Single Pole Single Throw) control acts as a high limit watchdog, protecting the primary heat exchanger and blower assembly from overheating by