The expansion panel is 19" wide, and can accommodate up to twelve 22 mm (0.87 in) operator controls of any type.

The 12 slots are pre-punched and can be easily broken out as required. Panels with customized complements can also be provided on request. Inscriptions are made on 2 slide-in labeling strips which are inserted from the rear.

For add-on operator controls, see also the special versions of SINUMERIK MPP 483.