OEM Carrier High Pressure Switch HK02ZA395 — 395 PSI Open / 295 PSI Close for Model PY2PPB030040AA

This is the genuine OEM Carrier high pressure switch (part number HK02ZA395), the factory-specified safety control for the Carrier PY2PPB030040AA packaged unit. The high pressure switch monitors refrigerant pressure on the high side of the refrigerant circuit. When system pressure exceeds the rated threshold, the switch opens the control circuit, shutting down the compressor to prevent catastrophic damage. A failed or out-of-calibration pressure switch will cause nuisance lockouts, a compressor that won't start, or — in the opposite failure mode — an unprotected compressor running at dangerously high head pressure.

• Specs: Opens at 395 PSI | Closes at 295 PSI | Rated 240 VAC | 6(6)A | PMAX 41 Bar | CE / EN12263 / EN60730-2-6 certified | Factory Authorized Part
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part manufactured by Sensata to exact OEM pressure setpoints. Generic alternatives frequently carry wider pressure tolerances, risking either nuisance trips or under-protection of your compressor.
• Install Difficulty: 3/5 — Refrigerant must be recovered before replacing a high pressure switch on most configurations. Tools needed: manifold gauge set, refrigerant recovery machine, adjustable wrench, and multimeter to confirm continuity after installation. Always follow local codes and EPA 608 regulations.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Engineered as a direct OEM replacement for the Carrier PY2PPB030040AA packaged unit. This part also supersedes multiple legacy ICP part numbers including 312926-217, 71267D1, HK02ZA380, HK02ZA396, HK02ZA400, HK02ZA401, HK02ZA435, HK02ZA500, and HK02ZA501. Always verify refrigerant type and system operating pressure range against your unit data plate before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you order.