Device for casting electric components

A device for casting electrical components of a type in which an electrical part is mounted to a terminal carrier plate, comprising:

• a flat lower mould component;
• a layer of silicon rubber located on the lower mould component and containing a plurality of recesses for receiving and closely fitting with a terminal carrier plate;
• a central mould component having a like plurality of chambers each shaped to receive a corresponding electrical part, the chambers extending through the central mould component between upper and lower ports in upper and lower surfaces respectively and the central mould component having a like plurality of ridges on the lower surface, each ridge surrounding a corresponding one of the lower ports;
• and
• an upper mould component with a hollow interior, the upper mould component having a lower surface with a like plurality of openings therein, the openings communicating with said interior and being arranged in a manner that when the upper mould component is in a first position, all of the openings are aligned with corresponding ones of the upper ports in the central mould component, whereby said hollow interior serves as a common sprue for supplying casting resin to said chambers, and when the upper mould component is displaced to a second position with respect to the central mould component, said upper ports and said openings are closed off.