Electrical power switch with display for state of energy storage stage

摘要

The electrical power switching unit has an energy storage device in the form of a compression spring (2) that is released to open the switch contacts. The spring connects with a loading device having a spindle (1) that has a crank arm (7). With the contacts closed a tension spring (11) coupled to the arm is held in a loaded state. The finger presses against a sliding element (20) that is displaced and operates a display (21) to indicate contact closure.