Heavy-duty vs Normal-use: matching the load profile
The 3ABD00057531: The 12.6 A normal-use rating covers variable-torque loads like fans and centrifugal pumps. For constant-torque conveyors or mixers, the heavy-duty 4 kW / 9.4 A rating applies. The light-overload rating at 12 A sits between them. Matching the overload class to the motor application prevents nuisance trips.
Product lifecycle is Active, meaning no planned obsolescence. For critical-spare planning, keep one sealed unit per cabinet row — this is a drive you can still add to the BOM without worrying about last-time buys.