bay subset for controlling access to a bay unit contact bar input, bay assembly, motor control center and method for controlling access to a bay compartment contact bar isolation input

摘要

Motor control centers have units or compartments with one or more sliding shutters that controllably block access to a contact bar isolation door based on the position of the switch operator handle using attached cams that slide the shutter to right and left. a front panel of the unit or housing may also be configured to pivot outwardly about an extended geometry axis associated with a lower extended side thereof.