| 337 / | HD | ELECTRICITY: ELECTROTHERMALLY OR THERMALLY ACTUATED SWITCHES |
| 14 | DF | ELECTROTHERMALLY ACTUATED SWITCHES {9} |
| 142 | DF | .~ Fusible element actuated {15} |
| 273 | ![]() | .~.~ With arc suppression or extinguishing means {6} |
| 274 | DF | .~.~.~> Plural (e.g., auxiliary fuse) {1} |
| 276 | DF | .~.~.~> Dielectric filler material or compound (e.g., quartz) {2} |
| 279 | DF | .~.~.~> Deionizing gas or vapor generating material |
| 280 | DF | .~.~.~> Cooling, condensing or absorbing means |
| 281 | DF | .~.~.~> Blowout means (e.g., gaseous) |
| 282 | DF | .~.~.~> Arcing chamber or passage structure |