| 337 / | HD | ELECTRICITY: ELECTROTHERMALLY OR THERMALLY ACTUATED SWITCHES |
| 298 | DF | THERMALLY ACTUATED SWITCHES {7} |
| 333 | DF | .~ With bimetallic element {9} |
| 360 | ![]() | .~.~ With operating range calibration or adjustment means {1} |
| 361 | DF | .~.~.~> Utilizing cam or roller |