What this code is and where it lands
The Siemens 6SL5166-8AH00-0AA0 is the S220 terminal kit, MOMO 200 mm rated 200 A — the main/optional power-termination strip used on SINAMICS S220 drive assemblies, sold under Product Group X0HX on the Group Code R220 ordering line. It carries the return-restricted class flag (B: contact your Siemens partner before returning) and ships in single-piece quantities, so a spares order is straightforward to budget against the BOM line. The kit sits in the bracket between the drive power block and the motor busbar on heavy servos — the 200 A continuous rating is the figure that has to clear the worst-case drive output, not just the nameplate motor current.
Compliance and export posture
RoHS compliance is logged Since 13-07-21;. Lifecycle is recorded current: no last-time-buy window is open, and no PCN/EOL notice ships against this order code on the manufacturer record available here. Quoted to order through independent distribution against the BOM line, with pricing and current availability confirmed at RFQ.
Why the 200 A bracket number governs the buy
200 A continuous on the terminal bracket is the rating that has to be wider than the drive's worst-case output into the motor lead — using a lighter terminal kit on an S220-class drive is the usual cause of nuisance thermal trips at full torque hold, so the figure cited on the part (200 A) is the floor, not the ceiling.