{"product_id":"campbell-hausfeld-hs518001aj-pressure-switch","title":"Campbell Hausfeld HS518001AJ Pressure Switch","description":"\u003cdiv\u003e\u003cp\u003eCampbell Hausfeld HS518001AJ Pressure Switch is a factory replacement part for Campbell Hausfeld stationary two‑stage air compressors. It governs automatic cycling by operating within a 135–175 psi window, typically turning the compressor on at the lower end of the range and off at the upper end to hold tank pressure within the designed limits. The switch is rated to handle up to 26 amps on common 120\/240‑volt circuits, aligning with the electrical demands of the models it serves. Industry documentation lists HS518001AJ alongside HS518101AJ and HS581601AJ, confirming it as a cross‑model replacement for several Campbell Hausfeld two‑stage units. Installing this switch restores the built‑in pressure regulation that drives safe, repeated start\/stop cycling, helping maintain steady output for tasks using connected pneumatic tools when the original switch has failed or worn out. Suitable as a direct swap for the indicated models, this part keeps the system within the manufacturer’s designed operating range and avoids the risk of mismatched components that can occur when using non‑OEM alternatives.\u003c\/p\u003e\u003c\/div\u003e","brand":"CAMPBELL","offers":[{"title":"New","offer_id":51677638164782,"sku":null,"price":105.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_89184747-79a1-424a-bb67-847d7fc440a3.jpg?v=1769565781","url":"https:\/\/plgautomation.com\/products\/campbell-hausfeld-hs518001aj-pressure-switch","provider":"PLG Automation ","version":"1.0","type":"link"}