The Siemens 6SL3353-3AG34-3BA0 is a replacement IPD (Interface & Protection Device) card for the SINAMICS S120 air-cooled Basic Line Module rated at 355 kW, 500–690 V three-phase AC, 430 A. It is the control and protection interface board that sits between the drive controller and the line module power stage — the component that manages pre-charging, DC-link monitoring, and fault isolation on the line side. This is a spare part, not a standalone drive. It replaces a failed IPD card in an existing S120 cabinet, so the form factor and connector layout must match the original module. The product class C designation means it is manufactured or produced to order — not a stocked shelf item — so lead time is determined at quote against an RFQ.
Lifecycle and compliance posture
RoHS compliance is confirmed since 01 July 2017. This is typical for power electronics with solder joints and bus bars; the declaration is already on file, so no additional paperwork is needed for EU-market installations.