| 摘要 |
A protection switch (1) is disclosed, which is particularly suitable wher e fast switching methods are concerned. The protection switch (1) comprises at least one single-pole protection switch module (2). The protection switch module (2) comprises a housing (3), a movable contact (84) mounted on a swi tching arm (43), which can be pivoted against a fixed contact (85) between a closed position and an open position, a manual activation mechanism (42) fo r manually setting the switching arm (43) between the closed position and th e open position, and a release mechanism (44) for automatically resetting th e switching arm (43) into the open position when a release condition occurs. The switching arm (43) is spring-loaded in the direction of the open positi on and comprises a latching lever (49) that can be latched with the manual a ctivation mechanism (42), and a contact lever (48) bearing the moveable cont act (84), wherein the latching lever (49) is pivotably mounted on the housin g (3) and joined to the contact lever (48) via a swivel joint (81). The rele ase mechanism (44) comprises a release slider (53), which can be displaced b y means of an actuator (55, 56) from a ready position towards a release posi tion, and which thereby impinges on the switching arm (43) in such a way tha t the contact lever (48) is torsionally fixed.
|
