H - Electricity
02
H
H02H 7/08 (2006.01) H01H 3/00 (2006.01) H01H 9/28 (2006.01) H02K 11/00 (2006.01) H01H 23/20 (2006.01)
Patent
CA 2449533
Housed in a casing (1) is an activation key (2), a pair of contact-holding elements (10, 11) and a triad of electric terminals (6, 7, 9). The contact-holding elements (10, 11) are oscillating around the same oscillation axis (O-O) between two positions, a passive position and an active position respectively, each imposed by a corresponding position of the activation key. The central terminal (6) of said triad is in permanent electric contact with one (10) of said contact-holding elements. The contact holding element (10, 11) that is closed upon the corresponding terminal (7, 9) in a passive position is separated therefrom in an active position and vice versa. The contact-holding elements (10, 11) are mutually electrically connected through conductive elements (17, 18) that can move with respect to one another for relative displacement of mating surfaces (17a, 18a) in mutual contact, when operation of the switch takes place in a condition of failure, which will result in loss of contact between the contact-holding elements (10, 11).
Oyen Wiggs Green & Mutala Llp
Signal Lux Mds S.r.l.
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