Fuji Electric Fa Components & Systems Co., Ltd.

Koujun Konishi

Yasuhiro Naka

Hideo Adachi

Kouetsu Takaya

Yuki Tashima

Yuya Sakurai

Mitsuya Itou

Electromagnetic contactor

The contact device includes a main contact mechanism that includes a pair of main fixed contacts and a main movable contact elastically supported by a movable shaft and disposed to be contactable with and separable from the pair of main fixed contacts, an auxiliary contact mechanism that includes a pair of auxiliary fixed contacts and auxiliary movable contacts disposed in an auxiliary contact holding member connected to the movable shaft so as to be contactable with and separable from the pair of auxiliary fixed contacts, and a contact housing portion that houses the main contact mechanism and the auxiliary contact mechanism. The movable shaft has a main contact support portion supporting the main movable contact and an auxiliary contact support portion supporting the auxiliary contact holding member. The main contact support portion and the auxiliary contact support portion are connected to each other via the auxiliary contact holding member.

Contact device and electromagnetic contactor using same

To provide an electromagnetic contactor that enables electrical connection work of connecting the electromagnetic contactor to another electrical component disposed in a current path to be performed easily and efficiently. An electromagnetic contactor includes a main contact portion; an auxiliary contact portion; a contact housing case that houses the main contact portion and the auxiliary contact portion; an electromagnet unit that drives a movable plunger coupled to a connecting shaft of the main contact portion; main contact electrodes project out of a case wall of the contact housing case to an outside; auxiliary contact electrodes that are connected to a pair of fixed contacts of the auxiliary contact portion and project out of the case wall to an outside; and an auxiliary contact external terminal portion that is connected to the auxiliary contact electrodes and is arranged on a portion of the case wall.

There is provided an electromagnetic contactor which can easily and inexpensively change the DC operation type to the AC operation type. The electromagnetic contactor includes an electromagnet that opens and closes a contact by using DC excitation of a coil, a lower case that accommodates the electromagnet, external coil terminals that are disposed in the lower case beside the electromagnet, and a substrate that is accommodated in the lower case, and that has a rectifier circuit whose input side is connected to the external coil terminals and whose output side is connected to the coil so as to output a DC after converting an input AC to the DC. An inner surface of the lower case has a groove between the electromagnet and the external coil terminals. The substrate is held by being inserted into the groove.

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Kounosu, Japan

Koujun Konishi