What the order code covers
The Siemens 6SL5166-8AD03-0AA0 is the terminal kit for a SINAMICS S220 Smart Line module in the 100 mm booksize frame, sized for the 16/24 kW class — the accessory that ships with the line module so the DC-link and 24 V control terminals land on the right connector family for that frame width. It carries Group Code R220 and Product Group X0HX in the Siemens ordering data set, and the part is classed as product class B — return-restricted, so any return has to go back through the original Siemens partner channel rather than a standard stock return.
Ordering data and packaging
Order quantity unit is 1 Piece with packaging quantity 1 — single-unit ordering, which is what a commissioning engineer expects when they need the terminal kit to replace a lost or damaged set on a specific Smart Line module on site. Export-control classification is AL: N / ECCN: EAR99H, which means the part ships without the dual-use export licence paperwork that some SINAMICS power modules carry — paperwork-light on the cross-border side, but still routed through the Siemens partner channel under the product class B return restriction.
Lifecycle and compliance posture
Lifecycle stage is recorded as current, so 6SL5166-8AD03-0AA0 remains a live ordering-data entry — no LTB or PCN on the order code itself, and no official successor flagged in the record.
Where it sits in the SINAMICS line
As a booksize-format accessory for a 100 mm Smart Line module, the terminal kit is the connector set that lets the 16/24 kW line module land cleanly in the backplane stack — correct kit on the correct frame width is what stops the commissioning team finding that the DC-bus or 24 V terminals physically do not accept the line module's busbars on first power-up.