What this part is and where it fits
The ABB miniature circuit breaker with order code 2CDS284001R0321 is a DIN-rail mounted overcurrent protective device from the System pro M compact family. It snaps onto standard 35 mm DIN rail inside a distribution board or control panel, protecting downstream wiring and loads against short circuits and overloads.
Lifecycle status and sourcing posture
This part carries a current-production lifecycle stage, meaning it is still in active manufacture by ABB. It is sourced to order through independent distribution channels; availability and current pricing are confirmed at quote time against an RFQ.