Teaching aid for circuit arrangements illustrating the mode of functioning of blocking devices, comprising at least one protection unit movable between a closed position and an open position

摘要

Teaching aid for construction of circuit arrangements illustrating the mode of functioning of blocking devices comprising at least one separating protection unit (3) movable between a closed position and an open position, and circuit elements (6, 7, 8, 9) interacting with the protection unit. Each completed circuit arrangement issues at least one signal which can be further processed.