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US 4,870,531 AGranted
Circuit breaker with removable display and keypad
AssigneeGeneral Electric Company
InventorRobert J. Danek
Life of this patent
Estimating the term…
Abstract
An electronic circuit interrupter digital display and keypad device includes a display to view circuit breaker settings and a keypad to select settings and values to be displayed. The display and keypad device removably connects to an electronic trip unit within the circuit interrupter by means of a plug-in connector.
Claims13
An electronic circuit breaker removable keypad and display unit comprising:
- a planar insulative enclosure having top and bottom opposing surfaces;
- an alphanumeric display and a plurality of keys on said top surface electrically interacting with an electric circuit arranged intermediate said top and bottom surfaces;
- and
- a projection extending from said bottom surface whereby a first electrical connector on said projection interconnects with a second electrical connector arranged on an associated electronic circuit breaker.
1 more element
An electronic circuit breaker including means displaying stored set point parameters comprising in combination:
- a molded plastic case and a cover;
- circuit interrupting contacts arranged within said case automatically interrupting circuit current upon the occurrence of an overcurrent condition through said contacts;
- an electronic trip unit within said cover determining the occurrence of said overcurrent condition and comparing said overcurrent current condition to predetermined trip parameters stored within said electronic trip unit;
- and
- a keypad and display unit including a plurality of keys and a display arranged within said cover and electrically connected with said electronic trip unit, said plurality of keys providing operator access to said stored trip parameters for displaying said stored trip parameters on said display.
2 more elements
Dependencies are inferred from the claim text.