Campbell Hausfeld CW218000AV Pressure Switch

The CW218000AV is a Campbell Hausfeld four-port pressure switch that automates air compressor operation by cycling the motor on and off within a 135–175 psi window, a range commonly used by mid-range portable and stationary Campbell Hausfeld models. Designed for 120/240‑volt single‑phase electrical supplies, this switch provides the electrical interface and pneumatic actuation needed to regulate tank pressure without external relays, delivering reliable cycling as the tank reaches the setpoints. The unit uses standard 1/4‑inch NPT fittings for straightforward installation and replacement, making it compatible with many Campbell Hausfeld units that specify CW218000AV. As a genuine Campbell Hausfeld replacement part, CW218000AV helps maintain consistent pressure delivery and reduces short cycling when used on suitable CH compressors operating within the 135–175 psi range.