Abb Sace S.p.a.

Giovanni Mairati

Renato Dosmo

The switch (1) includes a box-shaped housing body which can be installed in a switch cabinet. A switching lever (5) and an additional device (4) are arranged on the front of the housing body, which lever and device can be passed outwards through a door of the switch cabinet. On the front, the housing body has a flat bearing surface (6) of defined size from which the switching lever (5) projects. The additional device (4) has a flat rear which corresponds with the bearing surface (6) and with an opening (3) in the switch cabinet door. Fastening means are furthermore provided, with whose aid the additional device (4, 19, 22, 25, 27, 30) or a further additional device (19, 22, 25, 27, 30), which can be replaced thereby, can be fixed on the bearing surface (6).

Switch

The switching apparatus includes a stationary part (10) which is arranged in a switch cabinet and includes electrical power supply terminals (18) and electrical power distribution terminals (19). A moving housing body (20) accommodates a switch mechanism (27) and a disconnecting device for electrically connecting and disconnecting the housing body (20) from the stationary part (10). An additional device with an electrical auxiliary circuit is attached to the housing body (20) and is supplied with electrical power by wiring which is passed from the stationary part (10) to the housing body (20). The wiring includes mutually interacting plug connections (105, 107; 106, 108) which are positioned in the side walls (11) of the stationary part (10) and the side walls (A) of the housing body (20). The mutually interacting plug connections open when the housing body and stationary part are disconnected by the disconnecting device and close when the housing body and stationary part are connected by the disconnecting device. The switching apparatus can be accommodated in a switch cabinet in an extremely space saving manner.

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Bergamo, Italy

Giovanni Mairati