Industrial HD120V95-125-4P-14IN Air Pressure Switch

A four-port, 1/4" NPT, 120‑V air pressure switch with an adjustable 95–125 psi range is designed to automate air compressors by switching motor control on and off within that pressure window. It features a four-port mounting base for versatile installation and a built-in unloading valve to vent air during cycling, helping reduce start‑up current. Rated for 120 VAC and up to 20 A, this switch is compatible with standard single‑phase compressor motors and common control circuits. The 95–125 psi operating band makes it suitable for a range of garage, workshop, and light industrial air systems that require reliable, repeatable pressure cycling.