335 / | HD | ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS |
2 | DF | ELECTROMAGNETICALLY ACTUATED SWITCHES {30} |
6 | DF | .~ Automatic circuit-interrupting devices (e.g., circuit-protective devices) {12} |
21 | DF | .~.~ With latch or trip means {6} |
35 | DF | .~.~.~ Plural trips or combined operating means for single trip (e.g., magnetic with thermal) {2} |
36 | .~.~.~.~ With common structural elements |