Campbell Hausfeld CW211200AV 4-Port Pressure Switch

The Campbell Hausfeld CW211200AV four-port pressure switch is a direct replacement part for Campbell Hausfeld air compressors, designed to automatically cycle the motor based on tank pressure with a 100 psi on (cut-in) and 125 psi off (cut-out) setting. When tank pressure falls to 100 psi, the switch closes to restart the compressor; when it reaches 125 psi, the switch opens to stop it, helping maintain a stable pressure band and reducing short cycling. The four-port configuration supports the typical plumbing arrangement found on CH units that use this model designation, and the part is intended for Campbell Hausfeld equipment that specifies CW211200AV. By regulating on/off cycling within the 100–125 psi window, this switch helps deliver a consistent supply of compressed air for a variety of tasks and protect the compressor from operating at excessively high tank pressures. This component is a practical, field-replaceable control for shop or portable CH compressors, contributing to reliable operation and easier maintenance when the original switch requires replacement.