| 200 / | HD | ELECTRICITY: CIRCUIT MAKERS AND BREAKERS |
| 502 | DF | SOLID CONTACT {15} |
| 537 | DF | .~ Reciprocating actuator {4} |
| 547 | DF | .~.~ Slide switch (handle projects perpendicular to motion) {3} |
| 549 | ![]() | .~.~.~ Contact carried by slide {1} |
| 550 | DF | .~.~.~.~> Sliding contact |