| 摘要 |
In a case, a branch circuit unit, a multifunction relay unit and a relay unit are stored, being subsequently arranged in parallel. The branch circuit unit is composed of a laminated body of a bus bar and an insulating board, and a first printed board provided with a conductor on the both front and rear planes. The multifunction relay unit is provided with a second printed board whereupon an electric component is mounted, and a relay connector which connects the conductors of the first to the third printed boards. An external connecting terminal is protruded from the conductor of the second printed board and is protruded into a connector fitting part provided on the case. The relay unit is mounted with a plurality of relays on the third printed board.
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