What is the definition of the term ''space factor'' for a LVMCC?

Issue:
On a Model 4 MCC, what does "space factor mean"?

Product Line:
Motor Control Center

Environment:
Model 4

Resolution:
Space factors are used to express the unit height or the amount of space a unit will occupy in a vertical section. Each space factor represents 12 inches of vertical height and can be divided into two half space factors of 6 inches each.

Released for:Schneider Electric USA