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Bard 8401-032 is an OEM 2-pole 50 amp contactor used in Bard wall-mounted air conditioners and related Bard packaged equipment to switch high-voltage power to major loads like the compressor (and, on some models, electric heat circuits) from a low-voltage control signal. A worn contactor can cause intermittent starts, chattering, nuisance shutdowns, or burned contacts, so replacing it with the correct Bard factory part helps restore dependable call-for-cooling operation and proper electrical isolation. Confirm the contactor’s amp rating, pole count, and coil voltage match your unit’s wiring diagram before installation, and always replace with power disconnected.