X in code means height
Available heights: 4U, 6U, 9U, 12U, 15U, 18U
Y in code means size
60/45 - size 600x450, 60/60 - size 600x600

Cabinets are equipped with openable side doors and front lock as a standard. Side locks can be ordered (P/N ZAM-LN).

Datasheet
Lexi Net catalogue