(57) An auxiliary contact device protects a power factor correction contactor from the
high current peaks produced on connection of a capacitor battery. It has means of
coupling and fastening (24) to the contactor and means of engagement (23) with the
gear of the contactor (33). When the contactor is activated, the contacts (30, 14)
of the device are closed. Then the contacts of the contactor are closed and the contacts
(14, 30) are subsequently disconnected. The device has a frame (3) equipped with locking/unlocking
means (4) and, independently, a slide (12) bearing moving contacts (14). It has means
(8, 25, 26) for regulating the time it takes for disconnection of the contacts (14,30),
and means (15, 8, 25, 26) that increase the pressure of the moving contacts (14) on
the fixed contacts (30), the longer the travel of the contactor. All of this makes
possible the application of the device to the whole line of contactors for which it
has been designed by means of a selector (25).
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