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This OEM contactor is the factory-specified replacement for the Carrier C4850C50Z2040200 packaged unit. The contactor is a high-voltage relay that receives a 24V signal from the thermostat and closes to send line voltage to the compressor and condenser fan motor. When the contactor fails — due to pitted or burnt contacts, a stuck plunger, or a failed coil — the system will appear completely unresponsive: the outdoor unit simply won't energize even with a confirmed call for cooling. Replaces OEM part numbers HN53CB115 and HN53HF122.
Compatibility: Designed for the Carrier C4850C50Z2040200 packaged unit. Cross-references OEM part numbers HN53CB115 and HN53HF122. Verify your existing contactor's pole count and coil voltage on the data plate or existing component label before ordering. Our fitment team is available to confirm compatibility prior to purchase — same-day shipping means you're back up and running fast.