Plug-in base

Claim 1

A PLUG-IN BASE FOR RECEPTION OF A PRESELECTED NUMBER OF OVERLOAD RELAYS COMPRISING: A SLAB-LIKE MEMBER CONSTRUCTED OF INSULATING MATERIAL, ONE FACE OF SAID SLAB-LIKE MEMBER HAVING A PLURALITY OF ROWS OF CRUCIFORM SHAPED APERTURES THEREIN; A STAB RECEIVING CONNECTOR ALIGNED WITHIN EACH APERTURE OF EACH OF SAID ROWS AD DISPOSED INTERNALLY OF SAID SLAB-LIKE MEMBER, EACH OF SAID CONNECTORS COMPRISING SPACED LEGS DISPOSED IN OPPOSITE ARMS OF ITS RESPECTIVE CRUCIFORM SHAPED APERTURE, SIMILARLY LOCATED CONNECTORS FROM EACH OF SAID ROWS COOPERATING TO DEFINE A PLURALITY OF OVERLOAD RELAY STAB RECEIVING PAIRS; A PLURALITY OF CONDUCTING STRAPS DISPOSED WITHIN SAID SLAB-LIKE MEMBER, EACH ELECTRICALLY CONNECTING ONE OF SAID CONNECTORS OF ONE OF SAID RECEIVING PAIRS WITH ONE OF SAID CONNECTORS OF ANOTHER OF SAID RECEIVING PAIRS OF ESTABLISH AN ELECTRICAL SERIES CIRCUIT WHEN THE STABS OF ASSOCIATED OVERLOAD RELAYS ARE RECEIVED BY SAID PLURALITY OF RECEIVING PAIRS; AND A PAIR OF UPSTANDING TERMINALS EACH ELECTRICALLY CONNECTED TO A CONNECTOR OF A DIFFERENT OVERLOAD RELAY STAB RECEIVING PAIR AND EACH DIRECTED AWAY FROM SAID ONE FACE OF SAID SLAB-LIKE MEMBER TO PROVIDE AN EASILY ACCESSIBLE TERMINAL ARRANGEMENT FOR CONNECTING A SOURCE OF ELECTRICAL CURRENT TO SAID ELECTRICAL SERIES CIRCUIT.