The LiftMaster K52C0481 gate operator bridge rectifier from North Shore Commercial Door is a full-wave rectifier that will convert alternating current (AC) into direct current (DC) on a LiftMaster commercial gate operator. This K5C0481 bridge rectifier kit includes a mounting screw. It's also known as LiftMaster part #052C0481. Pay discount prices on all LiftMaster commercial gate controller replacement parts. Check your owner's manual (or call us) to ensure compatibility before ordering this part.