What the line is
The ABB 3ADT209027R1001 is filed as a PLC expansion module under the PLCs and Accessories branch of the PLCs & HMIs line, and the only physical attribute the listing carries is a mass of 1.32 kgs, which is heavy enough that a wireman planning a subpanel needs to count it against DIN-rail loading rather than treat it as a hand-pluggable accessory.
Reading the one rating that is on the page
Functional specs are absent; the only number on file is 1.32 kgs. That puts the part in the same handling class as a mid-weight I/O or communication module that mounts on a DIN rail or backplane, so reserve the mass budget before the BOM freezes.
Sourcing posture and cross-reference note
The two further peers on file, 3BSE021443R1 at 0.66 kgs and 3BSE018161R1 at 0.54 kgs, sit further down the mass scale and are not treated as direct swaps; they are listed only so a buyer scanning the category sees the weight spread they would be choosing between.