Electrical connector kit for connecting insulated electrical wires comprising a) a bar-shaped electrical connector, having multiple bores for receiving multiple electrical wires and multiple set screws which can be threaded in appropriately-located threaded bores in the connector to anchor the electrical wires in their respective wire-receiving bores, the connector bar being encased in a dielectric sheath, b) plural wire adapters of dielectric material, which can be cut at varying positions a...