Abstract: A plug socket for relays has contact chambers that comprise plug slots open toward an upper base member side for the acceptance of flat plugs and into which plug jacks are inserted proceeding from the underside. These plug jacks have catch tongues branched off at both sides for latching in catch channels of the contact chambers. The contact chambers with the inserted plug jacks are narrower than the plug slots and are offset in alternation toward the ends of the plug slots. The oppositely applied catch channels are thus offset relative to one another in the partitions. In this way, more standard contact jacks can be accommodated in standardized contact chambers in the same space than present aligning arrangement of the contact chambers.