High voltage relay for electric vehicle

A relay assembly of a battery disconnect unit (BDU) of an electrified vehicle high voltage (HV) battery system, comprising:

• a housing defining a contactor compartment and a coil compartment separated by a barrier;
• a first fixed contactor at least partially disposed within the contactor compartment and configured as an input to the relay assembly;
• a second fixed contactor at least partially disposed within the contactor compartment and configured as a first output of the relay assembly;
• a third fixed contactor at least partially disposed within the contactor compartment and configured as a second output of the relay assembly;
• a fourth fixed contactor disposed within the contactor compartment;
• a connection busbar configured to establish an electrical connection between the first fixed contactor and the fourth fixed contactor;
• a first movable contactor assembly configured to selectively electrically connect the first fixed contactor and the second fixed contactor;
• and
• a second movable contactor assembly configured to selectively electrically connect the third fixed contactor and the fourth fixed contactor,
• wherein when the second movable contactor assembly electrically connects the third and fourth fixed contactors, the connection busbar electrically connects the third fixed contactor to the first fixed contactor.