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Bard part number 8201-086 is an OEM DPDT control relay used in Bard wall mount HVAC equipment to switch two separate circuits from a 24 volt control signal. With a 24 V coil and contacts rated 3 FLA at 480 V, this relay is commonly used to handle higher voltage loads while keeping the thermostat or control board safely on low voltage. If your unit has intermittent operation, chattering, or burned contacts, replacing the relay with the correct Bard OEM part helps restore dependable sequencing and proper equipment operation. Verify coil voltage, contact ratings, and terminal layout against your unit wiring diagram before ordering, since Bard also lists a boxed service replacement (8201-086BX) for this obsolete number.