| 摘要 |
<p>There is provided an electromagnetic contactor such that it is possible to reduce the size of the overall configuration, even when switching a large current. An electromagnetic contactor (10) includes a contact device (100) and an electromagnet unit (200). The contact device (100) is such that a C-shaped contact portion is formed in a pair of fixed contacts (111) and (112), and both ends of a movable contact (130) are disposed so as to be connectable and detachable inside the C-shaped contact portion. The electromagnet unit (200) includes a U-shaped magnetic yoke (201), an upper magnetic yoke (210) bridging an opened end portion of the U-shaped magnetic yoke (201), a spool (204), in which is wound an exciting coil (208), disposed on the magnetic yoke, a movable plunger (215) disposed in a central portion of the spool (204) and connected to the movable contact (130), and a ring-form permanent magnet (220) disposed on the upper magnetic yoke (210) so as to enclose a peripheral flange portion on the leading end side of the movable plunger (215).</p> |
