200 / | HD | ELECTRICITY: CIRCUIT MAKERS AND BREAKERS |
402 | DF | SNAP {4} |
405 | DF | .~ Double snap {17} |
424 | DF | .~.~ Contact movement is blocked until spring is charged {1} |
425 | DF | .~.~.~ Blocked by distinct latch {3} |
426 | .~.~.~.~ Driving and driven element oscillate about a common axis {1} | |
427 | DF | .~.~.~.~.~> With reciprocating contact |