Interlock mechanism for a motor control unit

Details Interlock mechanism for a motor control unit Interlock mechanism for a motor control unit

1994-08-05

1997-06-24

Thompson, Gregory D.

Electricity: electrical systems and devices

Housing or mounting assemblies with diverse electrical...

For electrical power distribution systems and devices

200 5002, H02B 500

Patent

active

056422563

ABSTRACT:
An interlock mechanism in a motor control unit is provided for preventing the motor control unit from being engaged with current carrying bus bars within an enclosure when a handle disposed on the motor control unit is in an ON position, the handle controls a switching device disposed in the motor control unit, the interlock mechanism interacts with the switching device and automatically engages when the control unit is connected to the current carrying bus bars whereby preventing the motor control unit from being disengaged from the current carrying bus bars once the control unit becomes engaged with the current carrying bus bars and the handle is moved to the ON position.

REFERENCES:
patent: 4760220 (1988-07-01), Fritsch et al.
patent: 4768967 (1988-09-01), Fritsch
patent: 5019676 (1991-05-01), Heckenkamp

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