OEM Carrier High Pressure Switch HK02ZA395 — 395 PSI Open / 295 PSI Close for Model PY1PJB048130AAAA

This OEM Carrier high pressure switch (part number HK02ZA395) is the factory-specified replacement for the Carrier PY1PJB048130AAAA packaged unit. The high pressure switch is a critical refrigerant-circuit safety device that monitors system head pressure and cuts compressor power if pressure rises to a dangerous level. When this switch fails or drifts out of calibration, you'll experience nuisance high-pressure lockouts, compressor short-cycling, or a system that trips out on warm days even with normal refrigerant charge. Replacing it with the genuine OEM part restores the exact factory setpoints and protects your compressor from catastrophic failure.

• Specs: Opens at 395 PSI | Closes at 295 PSI | Rated 6(6)A @ 240 VAC | PMAX 41 bar | Compliant with EN12263 / EN60730-2-6
• OEM vs Generic: The OEM HK02ZA395 is factory-calibrated to Carrier's exact setpoints. Generic alternatives often have wider pressure tolerances, risking premature nuisance trips or — more dangerously — delayed shutoff that can damage the compressor.
• Install Difficulty: 3/5 — Refrigerant system work required. Recover refrigerant before removing the switch to avoid releasing refrigerant and to comply with EPA Section 608 regulations. Tools needed: manifold gauges, refrigerant recovery machine, adjustable wrench, and a multimeter to confirm continuity post-install. EPA 608 certification recommended.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Engineered for the Carrier PY1PJB048130AAAA packaged unit. This switch also replaces numerous legacy ICP part numbers including 312926-217, 71267D1, HK02ZA380, HK02ZA396, and others — verify your existing switch's PSI setpoints against your unit's data plate before ordering. Not sure if this part fits your system? Our HVAC parts specialists verify fitment before you buy — contact us today.