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1. (WO2015047307) MOTOR CONTROL CENTER UNIT DISCONNECT WITH INTERLOCKS

Pub. No.:    WO/2015/047307    International Application No.:    PCT/US2013/062243
Publication Date: Fri Apr 03 01:59:59 CEST 2015 International Filing Date: Sat Sep 28 01:59:59 CEST 2013
IPC: H01H 21/06
H02B 11/12
Applicants: SCHNEIDER ELECTRIC USA, INC.
Inventors: RICHARDS, Walter, J.
ROSEN, Gary M.
Title: MOTOR CONTROL CENTER UNIT DISCONNECT WITH INTERLOCKS
Abstract:
A connect/disconnect mechanism for an MCC unit, prevents a circuit breaker from being turned on while the unit is being inserted into an MCC section, until stabs of the unit have been connected to a power bus. A cam is rotatably mounted on a pivoted platform in the MCC unit, an actuating arm is coupled between a unit on/offhandle of the MCC unit and the cam, and a bail is pivotally mounted on the pivoting platform and connected to a switch handle of the breaker. A cam surface in a slot of the cam is configured to engage a pin projecting from the bail, when the pivoted platform is forced in a backward direction to connect the stabs to the bus, thereby operatively connecting the unit on/off handle to the switch handle of the breaker.