Automatically operating interlock assembly requiring an...

Details Automatically operating interlock assembly requiring an... Automatically operating interlock assembly requiring an...

H - Electricity

01

H

H01H 9/22 (2006.01) A47B 81/00 (2006.01) E05B 65/44 (2006.01) H02B 11/133 (2006.01) H05K 5/02 (2006.01)

Patent

CA 2397044

An automatically operating interlock prevents connection of an electrical device within a cabinet unless the cabinet door is closed. The interlock is particularly useful for circuit breakers contained within arc-resistant cabinets. The interlock includes a spring-biased locking plate reciprocating between a locked position wherein the locking plate resists movement of the levering-in locking plate, and an unlocked position wherein the locking plate permits movement of the levering- in locking plate. The locking plate is spring-biased towards its locked position, and is pushed from its locked position to its unlocked position when the cabinet door is closed. Access to the hex drive of the levering-in rod is thereby resisted when the cabinet door is open.

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