{"product_id":"carrier-py2ppb030040ab-pressure-switch-jria74","title":"OEM Carrier High Pressure Switch 395\/295 PSI for PY2PPB030040AB","description":"\u003ch1\u003eOEM Carrier High Pressure Switch HK02ZA395 — 395\/295 PSI for Model PY2PPB030040AB\u003c\/h1\u003e\u003cp\u003eThe \u003cstrong\u003eCarrier HK02ZA395\u003c\/strong\u003e is the factory-specified OEM high pressure switch for the \u003cstrong\u003ePY2PPB030040AB\u003c\/strong\u003e packaged unit. This safety-critical component continuously monitors refrigerant discharge pressure on the high side of the refrigeration circuit. When pressure spikes above the factory trip point — typically caused by a dirty condenser coil, failed condenser fan motor, refrigerant overcharge, or blocked airflow — the switch opens to cut power and protect the compressor from catastrophic failure. A failed or out-of-calibration switch will cause nuisance lockouts, compressor short-cycling, or a system that refuses to run entirely.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Opens at 395 PSI | Closes (auto-reset) at 295 PSI | 240 VAC rated | 1\/8\" NPT male thread fitting | Factory-calibrated Sensata\/RCD pressurestat housing (PS80-03-0018 platform)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier Factory Authorized Part with exact factory pressure calibration. Aftermarket switches frequently carry ±5–10% tolerance on trip points, risking either nuisance trips or — more dangerously — failure to protect the compressor at true over-pressure events.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Always recover refrigerant and depressurize the system before disconnecting. Tools needed: refrigerant recovery machine, 1\/8\" NPT wrench, multimeter (to verify open\/closed continuity), and thread sealant. Photograph wiring connections before removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty \u0026amp; Shipping:\u003c\/strong\u003e 1-year OEM factory warranty. In stock — ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Direct OEM replacement for Carrier model \u003cstrong\u003ePY2PPB030040AB\u003c\/strong\u003e. Also supersedes legacy part numbers 312926-217, 71267D1, HK02ZA380, HK02ZA396, and HK02ZA400. Always verify the PSI trip rating on your unit's data plate or service manual before ordering. Questions about fitment? Our HVAC parts specialists verify compatibility before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640524886387,"sku":"CARRIE-PY2PPB030040AB-PRESSURE_SWITCH-HK02ZA395","price":65.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640524919155,"sku":"CARRIE-PY2PPB030040AB-PRESSURE_SWITCH-HK02ZA395-GEN","price":57.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-HK02ZA395_590a304d-a226-4675-9825-61da5ce9f453.jpg?v=1775033338","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py2ppb030040ab-pressure-switch-jria74","provider":"National HVAC Parts","version":"1.0","type":"link"}