| 摘要 |
The actuation device in accordance with the invention comprises: - first and second movable means (6, 8) forming respectively a first and a second electrical contact terminal, the said first means (6) being movable between a first rest position in which the said circuit is open and a working position in which the said first and second movable means are in contact with one another and the said circuit is closed, -mechanical means for actuation (32) from the outside of the box (1), - means (28, 30) for holding the first movable means in their working position, - means (26) for disengaging and resting the first movable means (6) from their working position after the expiry of a defined time. <IMAGE>
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