OEM Carrier High Pressure Switch HK02ZA395 for Model PH2PEB060000AA

This OEM high pressure switch (part number HK02ZA395) is the factory-specified replacement for the Carrier PH2PEB060000AA 5-ton packaged heat pump unit. The high pressure switch is a critical refrigerant-circuit safety device: it continuously monitors discharge-side pressure and opens the circuit to shut down the compressor when system pressure exceeds the factory cutout threshold. A failed or out-of-tolerance switch causes nuisance high-pressure trips, compressor lockouts, or — if the switch fails closed — unprotected high-pressure operation that can damage the compressor. A secondary pressure switch, HK02ZB044, is also used on this model and is listed under alternate part numbers below.

• Specs: Opens at 395 PSI | Closes at 295 PSI | 240 VAC | SPST (Normally Closed) | 1/8" NPT male fitting | Sensata / PS80-03-0018 platform | Replaces: HK02ZA380, HK02ZA396, HK02ZA400, HK02ZA401, HK02ZA435, 312926-217, 71267D1, 19240027
• OEM vs Generic: This is a genuine Carrier OEM part manufactured to factory pressure tolerances. Aftermarket pressure switches frequently carry wider cutout variance, risking either premature trips that mask real refrigerant issues or insufficient protection against true over-pressure events — both of which accelerate compressor wear.
• Install Difficulty: 2/5 — Always recover refrigerant and verify system pressure is at zero before disconnecting the switch. Tools needed: manifold gauge set, adjustable wrench, 1/8" NPT thread sealant, multimeter (to confirm continuity before reinstall). Label and photograph wiring connectors before removal.
• Warranty & Shipping: 1-year OEM factory warranty. In stock and ships same business day from our warehouse. Free shipping on qualifying orders.

Compatibility: Designed for the Carrier PH2PEB060000AA 5-ton packaged heat pump. Also covers applicable Bryant and Payne variants sharing the same refrigerant circuit pressure specification. Secondary pressure switch HK02ZB044 is sold separately. Always verify the PSI rating on your existing switch label before ordering. Questions about fitment? Our HVAC parts specialists verify compatibility before you order — contact us before placing your order.