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This OEM-spec 2-pole contactor is the factory-authorized replacement for the Carrier PY3PPA036060NB condenser unit, cross-referenced under part number HN52KC025. The contactor acts as the high-voltage relay that bridges your thermostat's low-voltage (24V) control signal to the 240V power circuit running the compressor and condenser fan. When the contactor fails — due to worn contacts, pitting, or a burned coil — the air conditioner simply won't turn on, or may hum without starting. Replacing it promptly prevents compressor damage from repeated failed-start attempts.
Compatibility: Designed for the Carrier PY3PPA036060NB packaged or split-system condenser unit. Note: OEM part HN52KC025 has been superseded — this listing ships the current authorized replacement (HN52KC024) which is a direct, drop-in substitute with identical 2-pole, 30 Amp, 24V coil specifications. Always verify voltage and amperage on your unit's data plate before ordering. Questions about fitment? Our HVAC parts team confirms compatibility before you buy.