337 / | HD | ELECTRICITY: ELECTROTHERMALLY OR THERMALLY ACTUATED SWITCHES |
14 | DF | ELECTROTHERMALLY ACTUATED SWITCHES {9} |
123 | DF | .~ With longitudinally expansible solid element (e.g., rod, wire strip, etc.) {7} |
126 | .~.~ With manual or other mechanical contact actuating means {3} | |
127 | DF | .~.~.~> With delayed action or timing means |
128 | DF | .~.~.~> Latching or tripping means {2} |
131 | DF | .~.~.~> Snap-action (e.g., bistable) {4} |