The suitability-for-isolation marking (IEC 60947-2) confirms you can use it as a disconnector with visible isolation gap when open, which simplifies panel design by combining overcurrent protection and isolation in one device.
Mounts on a backplate in horizontal or vertical orientation — flat on the back, no DIN-rail adapter needed. The 9-module pitch (81 mm wide, 137 mm high, 80 mm deep) fits standard enclosure cutouts for the NSXm frame. Connection terminals accept compression lugs or busbars; front-facing connections on both upside and downside simplify busbar runs and cable dressing in a panel. IP40 enclosure protection keeps out tools and wires over 1 mm; IK07 impact rating per IEC 62262 means it withstands a 0.5 J impact — adequate for a lockable distribution board but not for exposed outdoor installation. The grey (RAL 7016) finish is the standard NSXm colour across the range.
Durability and dissipation
Mechanical durability is rated at 20,000 cycles; electrical durability at 20,000 cycles at 440 V at In/2 and 10,000 cycles at 440 V at full In. Power dissipation per pole is 13.7 W — at 160 A load, expect roughly 41 W total across three poles, which should be factored into enclosure thermal calculations to avoid derating adjacent devices.