| 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} |
| 627 | DF | .~.~ Distribution or control panel board {6} |
| 634 | ![]() | .~.~.~ With circuit breaker arrangements {2} |
| 635 | DF | .~.~.~.~> With discriminating means |
| 636 | DF | .~.~.~.~> Plug-in or removable |