318 / | HD | ELECTRICITY: MOTIVE POWER SYSTEMS |
445 | DF | AUTOMATIC AND/OR WITH TIME-DELAY MEANS (E.G., AUTOMATIC STARTING AND/OR STOPPING) {20} |
474 | .~ Motor load, armature or primary or secondary circuit current {2} | |
475 | DF | .~.~> Mechanical-type detector (e.g., by yielding spring devices) |
476 | DF | .~.~> In excess of a predetermined magnitude {1} |