OEM Carrier High Pressure Switch 395/295 PSI — HK02ZA395 for Model PY2PNB030060NB

This genuine OEM Carrier high pressure switch (part number HK02ZA395) is the factory-specified refrigerant circuit safety device for the Carrier PY2PNB030060NB packaged unit. Mounted on the high-side refrigerant line, this switch continuously monitors system discharge pressure and opens the compressor circuit if pressure exceeds the safe threshold — protecting the compressor from catastrophic over-pressure failure. When it fails or trips repeatedly, you'll see nuisance high-pressure lockouts, compressor short-cycling, or a system that won't run at all even when refrigerant charge and airflow are confirmed normal.

• Specs: Opens at 395 PSI | Closes at 295 PSI | 6(6)A @ 240 VAC | 1/8"-Fine NPT thread | Sensata PS80-03-0018 platform | PMAX 41B rated
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part with factory-calibrated trip points. Aftermarket substitutes often carry ±5–10% PSI tolerance, which can mean missed trips at dangerous pressures or nuisance lockouts under normal operating conditions — both costly outcomes.
• Install difficulty: 3/5 — Requires refrigerant system recovery before switch replacement to safely depressurize the high-side port. Tools needed: manifold gauge set, refrigerant recovery equipment, adjustable wrench, multimeter (to confirm open/close function). Always follow EPA Section 608 refrigerant handling regulations.
• Warranty & Shipping: 1-year OEM manufacturer warranty. In stock — ships same business day from our warehouse.

Compatibility: Direct OEM replacement for Carrier PY2PNB030060NB packaged units. Also supersedes legacy part numbers 312926-217, 71267D1, HK02ZA380, HK02ZA396, HK02ZA400, HK02ZA401, HK02ZA435, HK02ZA500, and HK02ZA501. Verify your unit's data plate and existing switch markings before ordering. Our fitment team is available to confirm compatibility — just reach out before you buy.