| 200 / | HD | ELECTRICITY: CIRCUIT MAKERS AND BREAKERS |
| 402 | DF | SNAP {4} |
| 405 | DF | .~ Double snap {17} |
| 462 | ![]() | .~.~ Tension spring (e.g., pull force) {3} |
| 463 | DF | .~.~.~> Contact pivot point is moved to cause snap {1} |
| 465 | DF | .~.~.~> Both ends of spring move {1} |
| 467 | DF | .~.~.~> One end of spring is fixed |