The ABB 4NWP100221R0001 is a WebPro ModBus Card — a network management card that slots into the accessory bay of a PowerValue 11RT G2 UPS. It adds remote monitoring and ModBus RTU communication to the 1 kVA, 2 kVA, or 3 kVA models in that series.
Sizing and physical fit
The card measures 80 mm deep, 52 mm wide, and 26 mm tall — a compact footprint that slides into the dedicated slot without stealing DIN rail or panel volume. No extra wiring space needed beyond what the UPS already provides.