Brown, Boveri & Cie Ag

Rolf Goehle

Volker Schmitt

Klaus Greefe

Herbert Ebel

Werner Bruckner

A magnetic tripping device for an electrical wiring device includes a U-shaped magnetic yoke, a cylindrical non-magnetic coil form having two end surfaces and a periphery and being disposed in the magnetic yoke, a magnetic core disposed in the coil form, a magnetic armature movably disposed in the coil form, and a compression spring disposed in the coil form between the magnetic core and the magnetic armature, the coil form having at least two radial embossings uniformly distributed over the periphery in the vicinity of the end surfaces for fixing the magnetic core in place in the coil form and for guiding the magnetic armature in the coil form with a limited stroke and a sliding fit.

Magnetic tripping device

An electric wiring switch having an electromagnetic open-circuit shunt tripping device with a magnet armature that, when the tripping device is tripped, acts upon a latching shaft to release a latch upon the ocurrence of a fault current in an electrical circuit wherein the switch is connectible, and also having an indicating device lastingly indicating the tripping of the open circuit shunt tripping device, an operating button displaceable between a first position thereof wherein the switch is in an 'on' condition and the operating button is spring loaded, and a second position thereof wherein the switch is in an 'off' condition and the operating button is released from the spring loading, the operating button being formed with projection means extending therefrom which, in the 'on' condition of the switch, are engaged behind corresponding extension means extending from the latching shaft for firmly retaining the operating button in the first position thereof, and which, in the 'off' condition of the switch, after the operating button is in the second position thereof, are engaged with the extension means of firmly retaining the latching shaft in a released position thereof which is assumed thereby when the tripping device is tripped.

Growing community of inventors

Leimen, Germany

Rolf Goehle