Profile: McKenney Supply, Inc. is a supplier of electrical, industrial and HVAC components. Our product line includes ballasts, batteries, breakers, capacitors, conduit fittings, fasteners, fuses, fuse-blocks, heaters, surge arrestors and couplings. We also offer relays, smoke & fire alarms, solder fluxes, motor starter, thermocouples, transformers, control cables and wire caps.