Designed specifically for panel-mount applications.  Compact and lightweight with a removable knob on 701-PM. Has countersunk recesses for surface-mount applications and requires a standard 2-1/16″ hole cut-out. Also has captive inserts for 3/16″ nuts; full access for cables — no restrictions and a standard interchange label system. Dimensions: 2-3/4″L x 2-3/4″W x 3″H.