| 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} |
| 37 | DF | .~.~ With manual or other mechanical contact controlling means {12} |
| 41 | DF | .~.~.~ Multiple contact or plural circuit control means {3} |
| 45 | DF | .~.~.~.~ Single multipole or polyphase control device {2} |
| 47 | DF | .~.~.~.~.~ With separate latching or tripping means in each phase {1} |
| 48 | DF | .~.~.~.~.~.~ With common trip-bar means {2} |
| 50 |  | .~.~.~.~.~.~.~ Rotatable |