Square D heavy duty Safety switches play a crucial role in todays commercial and industrial settings, isolate power in daily activities, provide an effective way to interrupt power in an emergency, provide lockout on sight disconnect Internal barrier kit provide an additional barrier that helps prevent accidental contact with live parts. Field-installed transparent barriers do not restrict visual inspection of the switch. This Safety switch accessory is designed to be as interior barrier for 3 poles60 A, 600VAC rated heavy duty safety switches A convenient door allows use of test probes without accessing fuses and replacement of fuses without removing barrier. Barrier must be used with the skirt kit to enclose a panel mounted 9422 disconnect. Barriers provide IEC529 IP2X finger safe protection when door of enclosed disconnect switch is open