{"product_id":"thomas-air-pac-602721-pressure-switch-4-port-fits-t2820-st-series","title":"THOMAS AIR-PAC 602721 PRESSURE SWITCH 4-PORT FITS T2820-ST SERIES","description":"\u003cdiv class=\"\" data-turn-id-container=\"request-6a5a4e3c-aefc-83ec-89d6-6e03135541eb-80\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-6a5a4e3c-aefc-83ec-89d6-6e03135541eb-80\" data-turn-id-container=\"request-6a5a4e3c-aefc-83ec-89d6-6e03135541eb-80\" data-testid=\"conversation-turn-214\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-15 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv data-conversation-screenshot-content=\"\" class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"3b69223a-8b4a-4282-9c7a-bc5e7acae8db\" data-turn-start-message=\"true\" dir=\"auto\" data-message-model-slug=\"gpt-5-5\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full dark markdown-new-styling\"\u003e\n\u003ch3 data-section-id=\"17lc1ru\" data-start=\"0\" data-end=\"16\"\u003eDescription:\u003c\/h3\u003e\n\u003cp data-start=\"18\" data-end=\"733\"\u003eThe Thomas Air-Pac 602721 Pressure Switch 4-Port is used to automatically control the start and stop operation of air compressors by monitoring system pressure. Commonly installed on Thomas Air-Pac T2820-ST Series air compressors, industrial compressed air systems, service shop compressors, and pneumatic equipment, this four-port mechanical pressure switch provides dependable compressor pressure regulation while allowing connections for an unloader valve, pressure gauge, safety valve, and air tank. Maintenance technicians and compressor service professionals use this pressure \u003ca href=\"https:\/\/plgautomation.com\/collections\/switches-circuit-protection\"\u003eswitch\u003c\/a\u003e for repairs, retrofits, and replacement of worn or failed compressor pressure controls. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5ms9th\" data-start=\"735\" data-end=\"752\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"754\" data-end=\"1281\"\u003eThe Thomas Air-Pac 602721 is specifically designed as a replacement pressure switch for T2820-ST Series air compressors. Its four-port configuration simplifies installation by accommodating multiple system connections while providing automatic compressor cut-in and cut-out operation. It is suitable for industrial air compressors, workshop compressors, manufacturing facilities, pneumatic systems, and OEM compressor packages requiring reliable pressure control and compressor protection. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5hg6bl\" data-start=\"1283\" data-end=\"1312\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"1314\" data-end=\"2222\"\u003e• Manufacturer Part Number (MPN): 602721\u003cbr data-start=\"1354\" data-end=\"1357\"\u003e• Brand: Thomas Air-Pac\u003cbr data-start=\"1380\" data-end=\"1383\"\u003e• Product Type: Air Compressor Pressure Switch\u003cbr data-start=\"1429\" data-end=\"1432\"\u003e• Compatible Series: T2820-ST Series Air Compressors\u003cbr data-start=\"1484\" data-end=\"1487\"\u003e• Configuration: Four-Port Pressure Switch\u003cbr data-start=\"1529\" data-end=\"1532\"\u003e• Number of Ports: 4\u003cbr data-start=\"1552\" data-end=\"1555\"\u003e• Port Size: 1\/4 in. Female NPT (typical four-port configuration)\u003cbr data-start=\"1620\" data-end=\"1623\"\u003e• Manual Control: On\/Off Lever\u003cbr data-start=\"1653\" data-end=\"1656\"\u003e• Function: Automatic Compressor Cut-In \/ Cut-Out Control\u003cbr data-start=\"1713\" data-end=\"1716\"\u003e• Compatible Media: Compressed Air\u003cbr data-start=\"1750\" data-end=\"1753\"\u003e• Mounting Style: Direct Tank or Manifold Mount\u003cbr data-start=\"1800\" data-end=\"1803\"\u003e• Connection Ports: Tank Pressure, Safety Valve, Pressure Gauge, Air Outlet\/Accessory Port\u003cbr data-start=\"1893\" data-end=\"1896\"\u003e• Features: Four-port manifold design, manual on\/off control, compressor motor switching, replacement service part\u003cbr data-start=\"2010\" data-end=\"2013\"\u003e• Typical Applications: Industrial Air Compressors, Workshop Compressors, Pneumatic Systems, Manufacturing Equipment, Compressed Air Installations, OEM Compressor Packages \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1cz0398\" data-start=\"2224\" data-end=\"2248\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"2250\" data-end=\"2380\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e• Thomas Air-Pac 602518\u003cbr data-start=\"2273\" data-end=\"2276\"\u003e• Thomas Air-Pac 602266\u003cbr data-start=\"2299\" data-end=\"2302\"\u003e• Thomas Air-Pac 69JF7LY\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"THOMAS","offers":[{"title":"New","offer_id":51714009104686,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_1c7b782b-daa8-49f3-9b18-d68b6b226bf5.jpg?v=1770413647","url":"https:\/\/plgautomation.com\/products\/thomas-air-pac-602721-pressure-switch-4-port-fits-t2820-st-series","provider":"PLG Automation ","version":"1.0","type":"link"}