Industrial UNIV-PS-90DEG-UNLOADER-4P-20A-120-240V Pressure Switch

Industrial UNIV-PS-90DEG-UNLOADER-4P-20A-120-240V Pressure Switch is a four-port, 90-degree unloader valve pressure switch designed for pneumatic systems such as air compressors. The unit provides automatic shutoff with an integrated unloader valve to vent the line when the pressure is reduced, aiding restart and reducing wear. It is rated for 120 V AC up to 20 A and 240 V AC up to 12 A, making it compatible with common single‑phase compressor circuits in both 120/240 V installations. The four-port manifold configuration supports routing of supply, discharge, and unload lines, offering flexible plumbing for compact compressor setups where space is at a premium.