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This OEM 2-pole contactor (part# HN52KC053) is the factory-specified replacement for the Carrier 09DE109C230. The contactor is the high-voltage relay that your thermostat's 24V control signal energizes to send line voltage to the compressor and condenser fan motor. When it fails, your system either won't turn on at all, trips a breaker, runs continuously without shutting off, or produces an audible chattering or buzzing from the electrical panel. Burned or pitted contact points are the most common cause of failure and are a sign it is time for an immediate replacement.
Compatibility: Fits Carrier model 09DE109C230. Always verify your unit's data plate for voltage and amperage requirements before ordering. Our technical team is available to confirm fitment — reach out before you buy if you have any questions.