OEM Carrier High Pressure Switch HK02ZA395 — 395/295 PSI for Model PY2PPB030060AB

This OEM Carrier high pressure switch (part number HK02ZA395) is the factory-specified safety control for the Carrier PY2PPB030060AB packaged unit. Mounted on the high side of the refrigerant circuit, this switch continuously monitors system pressure and opens the compressor circuit if pressure exceeds the factory-rated threshold — protecting your compressor and refrigerant circuit from catastrophic failure. Common symptoms of a failed high pressure switch include the system locking out on a high-pressure fault, the compressor shutting down unexpectedly during high ambient temperatures, or the unit failing to cool altogether despite the outdoor fan running normally.

• Specs: Opens at 395 PSI | Closes at 295 PSI | 240 VAC | 6(6)A | 1/8" NPT thread | Sensata PS80 series platform | Cross-reference: HK02ZA395A, PS80-03-0018, 406-300
• OEM vs Generic: This is a genuine Carrier OEM part — factory-calibrated to exact cutout and cut-in pressures. Aftermarket switches often carry wider pressure tolerances, which can allow the compressor to run outside safe operating limits or trip nuisance lockouts, shortening system life.
• Install difficulty: 2/5 — Refrigerant recovery is not required for switch replacement if system pressure is safely relieved through the service port first. Tools needed: adjustable wrench, 1/8" NPT fitting, multimeter (to confirm continuity before and after install). Always follow EPA 608 regulations. Label and photograph wiring before disconnecting.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Engineered as a direct OEM replacement for Carrier model PY2PPB030060AB packaged units. Also replaces legacy part numbers 312926-217, 71267D1, HK02ZA380, HK02ZA396, HK02ZA400, HK02ZA401, and HK02ZA435. Verify your unit's data plate and existing switch markings before ordering. Not sure it fits? Our HVAC parts specialists verify fitment before you purchase — contact us today and ship with confidence.