La Telemecanique Electrique

Christian Thomas

Jean-Pierre Guery

Jacques Olifant

Jacques Arvisenet

Roger Vayre

Combined circuit breaker and accessories therefor

A contactor apparatus comprising means for automatically opening power circuits should faults occur and a local control member. This apparatus comprises a plurality of power lines (8) each comprising a power contact (2) adapted to be opened during a short circuit by a striker (28), a coil (13) and a bimetallic strip (14), responding to smaller overloads. The elements responsive to overcurrents act on a cascade of sudden tripping devices (19) (17) (31) which govern the positions of the local control member (18) and act on a control switch (4) placed in series with the electromagnet (1). Such an apparatus is advantageously used in installations where protection of the lines, remote control and local control of the consumer apparatus are desired.

Contactor apparatus comprising means for automatically opening power

A contactor apparatus is provided comprising automatic opening means and a local control member. This apparatus uses a transmission piece (40) associated with a sudden tripping mechanism (46) which is released by a bolt (29) held in position by means of a lever (24) which may be struck by a magnetizable part and adapted to maintain a power contact (13) open, this part assuming, after the appearance of a fault, visible positions so as to inform the user about the state of the apparatus. This apparatus is usable in installations where it is desired to protect the lines and the loads.

Contactor apparatus comprising automatic opening means and a local

A mechanically controlled power switch with automatic opening is provided for limiting short circuits. A switch (13), a breaking chamber (30) which is associated therewith, a coil (50), a striker (51) cooperating therewith, and a lock (53) for holding the power switch in open position S after the appearance of a short circuit are placed in a removable cartridge (23) provided with connection terminals (37, 55). This switch cartridge is advantageously used in mechanically controlled protection apparatus or in electromagnetic contactor apparatus having their own protection.

Mechanically controlled switch with automatic opening

An improved supply circuit for electromagnets. The supply circuit comprises a bridge rectifier, an attracting winding positioned in the diagonal of the bridge rectifier, a holding winding placed on the magnetic circuit of the electromagnet, and an isolating contact which isolates the bridge at the end of the pulling-in course of the movable member of the magnetic circuit. The holding winding being connected in parallel across the system formed by the isolating contact and the bridge rectifier.

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Montesson, France

Christian Thomas