361 / | HD | ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES |
600 | DF | HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS {11} |
601 | DF | .~ For electrical power distribution systems and devices {10} |
641 | DF | .~.~ Electrical service distribution box {5} |
644 | DF | .~.~.~ Including panel board {6} |
651 | .~.~.~.~ Panel board corner mountings |