78W57 | Lennox 101572-04, Pressure Switch, Actuates at 0.27" W.C.; Green Label | Lennox

**Lennox Single Pole, Single Throw (SPST) 78W57 Pressure Switch** The Lennox 78W57 is a reliable and robust SPST pressure switch designed to monitor and control pressure systems in industrial settings. Its versatile design makes it suitable for various applications, including HVAC, refrigeration, and hydraulic systems. With a pressure range of 0.03 to 0.27 inches of water column (WC), this switch provides precise pressure monitoring and control. Its 1/4-inch NPT connection allows for seamless integration into existing piping systems. Built for durability, the 78W57 features a rugged construction with a corrosion-resistant brass body and a stainless steel diaphragm. Its IP65 rating ensures protection against dust and water ingress, enabling reliable operation in harsh industrial environments. The 78W57 is field adjustable, allowing for customization to meet specific system requirements. Its electrical contacts are rated for 10 amps at 120VAC and 5 amps at 240VAC, providing ample capacity for controlling various loads. **Benefits** * Precise pressure monitoring and control with a range of 0.03 to 0.27 WC * Versatile compatibility with HVAC, refrigeration, and hydraulic systems * Rugged brass construction with a stainless steel diaphragm for durability * IP65-rated for protection against dust and water ingress * Field adjustable for customized operation * Reliable brand name with a proven track record in industrial applications **Order now from our HVAC supply store for the best prices and fast shipping on the Lennox 78W57 Pressure Switch!**