| 摘要 |
Contact device comprising an electrically conductive contact spring clamped tight at one end, whereas its freely movable end is located opposite a countercontact, and comprising an energizing coil controlling the contact spring and having its field extending in the direction of length of the contact spring, which is provided at its movable part near the clamped end with at least one permanent magnet surrounded by the energizing coil and polarized transversely of the direction of length of the contact spring.
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