The ABB 4NWP100220R0001 is a relay card — the AS400 interface option — designed to fit inside the PowerValue 11RT G2 UPS chassis. It gives the UPS a set of dry-contact relay outputs that signal mains fail, battery low, and bypass active to a remote monitoring system or BMS. No separate power supply needed; the card draws from the UPS backplane. Compatibility is locked to the PowerValue 11RT G2 series in the 1 kVA, 2 kVA, and 3 kVA ratings. If your BOM calls for this card on a different UPS model, the mounting bracket and connector pinout won't align.
The card measures 80 mm deep, 52 mm wide, and 26 mm high. It mounts internally in the UPS — no DIN rail or external enclosure needed. The form factor is shallow enough that it doesn't intrude into cable bend space inside the UPS cabinet. Terminal blocks are fixed on the card edge; wire entry is straightforward with a small flathead screwdriver.