| 摘要 |
An electromagnetic relay includes a base, an electromagnet unit, a movable piece movable due to a function of the electromagnet unit, a card that is supported by the base so as to swing freely and is swung by the movable piece, and a contact structure that is opened and closed by swinging of the card, the card and the base respectively having protrusions and holes so that the protrusions fit into the holes to enable the card to swing freely.
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