What it is
The ABB 1SAZ321201R1001 is a solid state overload relay sitting in the Circuit Breakers, Fuses & Protection / Relays / Solid State Overload Relays line, and the only functional designation on record is a Class 10 trip class.
Sourcing posture
No production-status entry is recorded for the 1SAZ321201R1001, so the part is quoted to order against an RFQ rather than walked in off a shelf. For a dropship arbitrage desk, the play is straightforward: pin down a supplier that ships clean every time, hold the line on the spread, and quote against the BOM line — don't second-guess active-vs-obsolete on a thin evidence bundle.