Failsafe electrical connector.

摘要

A failsafe electrical connector includes an electrical connector plug (10) including a main signal plug portion (14) with a pair of contact terminals (22) mounted therein and a check signal plug portion (15) with a contact terminal (23) mounted therein; a main signal socket (11) having a contact terminals (34, 35) for coming into contact with the contact terminals of the main signal plug portion when the main signal socket is fitted in the main signal plug portion; a check signal socket (12) having a contact terminal (43) for coming into contact with the contact terminal of the check signal plug portion when the check signal socket is fitted in the check signal plug portion; and a block device (50) provided in the connector plug for preventing insertion of the check signal socket into the check signal plug portion when a connection of the main signal socket into the main signal plug portion is incomplete. <IMAGE>