| 337 / | HD | ELECTRICITY: ELECTROTHERMALLY OR THERMALLY ACTUATED SWITCHES |
| 14 | DF | ELECTROTHERMALLY ACTUATED SWITCHES {9} |
| 36 | DF | .~ With bimetallic elements (i.e., motion takes place in a plane at right angles to its major axis) {10} |
| 85 | DF | .~.~ Bimetallic element unitary with or directly actuates movable contact means {6} |
| 92 | ![]() | .~.~.~ Cyclic or repetitively operative (e.g., flashing) {1} |
| 93 | DF | .~.~.~.~> With interval predetermining or adjustment means |