General Electric Company

Mark S DeBiasi

David J Lesslie

Richard A Menelly

Ira B Goldman

Robert J Danek

Hanns P Sailer

Edward R Bednarik

Ira B Goleman

A digital circuit interrupter containing radio frequency sensitive electronic equipment employs an electrically-insulative enclosure having a conductive coating on the exterior surface. The enclosure is inserted within the circuit interrupter enclosure during automated assembly of the circuit interrupter components.

Digital circuit interrupter with RFI and EMI shielding

Switchboard and panelboard enclosures include a main electronic circuit breaker interconnected with a plurality of branch circuit breakers by means of a corresponding plurality of terminal boards. Zone-Selective-Interlock and Load Selection functions are achieved by signals transmitted between the branch circuit breakers and the main circuit breaker. The accessories within the branch circuit breakers respond to tripping signals from the main circuit breaker to provide the Zone-Selective-Interlock and Load Selection functions.

Switchboards and panelboards having interlock and load selection

An electronic circuit interrupter digital display and keypad device includes a display to view circuit breaker settings combined with a keypad to select settings and values to be displayed. The display and keypad device connects to an electronic trip unit within the circuit interrupter by means of a tamper-free seal to prevent the circuit interrupter set points from being changed without authorization. Alternatively, a password-operated control switch provides a similar function.

Electronic circuit interrupter with combined keypad and display

Growing community of inventors

Windsor, CT, United States of America

Mark S DeBiasi