The 6SL3356-3AG31-5AA0 is a Siemens SINAMICS S120 Replacement IPD (Interface and Protection) card for a liquid-cooled Motor Module. It's the control and interface board that sits between the drive control unit and the power stage in a liquid-cooled S120 cabinet — not a standalone drive, but the logic board that makes the module communicate and protect itself. Rated for 132 kW at 500-690 V 3-phase AC, 50/60 Hz, pulling 150 A. That puts it squarely on a high-voltage liquid-cooled motor module driving a large pump, fan, or conveyor in a marine or industrial process line where liquid cooling is specified for heat rejection.
Production status and compliance
RoHS compliant since 01 July 2017.
Sourcing reality
Because it's a made-to-order spare part, you won't find this sitting on a distributor shelf. It's sourced against an RFQ — we confirm current Siemens pricing and the factory lead time at quote. For a line-down situation, it's worth asking whether the complete liquid-cooled Motor Module assembly is available faster; the IPD card alone is the repair path, not the swap-out path.