| 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} |
| 659 | DF | .~.~ For electricity service meter {5} |
| 661 | ![]() | .~.~.~ With meter circuit controller {2} |
| 662 | DF | .~.~.~.~> Bypass arrangement |
| 663 | DF | .~.~.~.~> With transformer or circuit breaker |