OEM Carrier High Pressure Switch HK02ZA395 — 395/295 PSI for Model PY2PNB030060AA

This is the genuine OEM Carrier high pressure safety switch (part number HK02ZA395), the factory-specified replacement for the Carrier PY2PNB030060AA packaged unit. The high pressure switch is a critical refrigerant-circuit safety device that continuously monitors refrigerant discharge pressure. When system pressure exceeds the cutout threshold, the switch opens the control circuit to prevent compressor damage and system failure. A failed or out-of-calibration switch will trigger nuisance high-pressure lockouts, cause repeated no-cool complaints, or — if stuck closed — allow dangerously high pressures to go unchecked.

• Specs: Opens at 395 PSI | Closes at 295 PSI | 240 VAC rated | 6(6)A | 1/8" NPT thread | Sensata PS80-03-0018 / HK02ZA395A platform
• OEM vs Generic: OEM switches are factory-calibrated to exact cut-in/cut-out tolerances. Aftermarket alternatives often carry wider PSI variance, risking premature trips or delayed protection — both costly in compressor life and liability.
• Install Difficulty: 2/5 — Recover refrigerant and isolate system pressure before removal. Tools needed: adjustable wrench, refrigerant recovery equipment, manifold gauges, wire terminals. Always verify the replacement PSI rating matches your system's nameplate before installing.
• Warranty & Shipping: 1-year OEM factory warranty. In stock — ships same business day from our warehouse.

Compatibility: Direct OEM fit for Carrier model PY2PNB030060AA. Also supersedes legacy part numbers 312926-217, 71267D1, HK02ZA380, HK02ZA396, 19240027, HK02ZA400, 312926-225, 312926-226, 312926-233, HK02ZA401, HK02ZA435, HK02ZA500, and HK02ZA501. Confirm refrigerant type and system discharge pressure specifications on your equipment data plate before ordering. Have a fitment question? Our HVAC parts specialists verify compatibility before you buy — contact us today.