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This is the factory OEM replacement contactor (part number HN51JD026) for the Carrier HP13NR06000GAKAA heat pump system. The contactor is a high-voltage relay that acts as the primary power switch for your compressor and condenser fan motor. When your thermostat calls for cooling or heating, the 24V control board energizes the contactor coil, closing the high-voltage contacts and allowing line voltage to reach the compressor. A failed or pitted contactor is one of the most common causes of a system that runs constantly, won't turn on at all, or trips the circuit breaker repeatedly.
Compatibility: Designed specifically for the Carrier HP13NR06000GAKAA heat pump condenser. Always verify your existing contactor's pole configuration, coil voltage, and amperage rating against your unit's data plate before installing. If you need help confirming fitment, our HVAC parts specialists are available to verify compatibility before you order — no guesswork, no return hassle.