The Siemens 6SL3356-3AG35-8AA7 is a replacement IPD (Interface and Protection) card for a water-cooled (CuNi) SINAMICS S120 Motor Module. It's the control and protection board that sits between the drive control unit and the power stage in a water-cooled 560 kW module rated 500-690 V 3-phase AC, 50/60 Hz, carrying a continuous 575 A.
The 575 A continuous rating at 500-690 VAC tells you this card is designed for a specific power section — a 560 kW water-cooled Motor Module. The 500-690 V range covers common 690 V industrial mains and the 575 V North American class; 50/60 Hz means it's frequency-agnostic for global installs. This is a replacement IPD card, not a standalone drive. It mates to the CuNi (copper-nickel) water-cooled heatsink assembly of the Motor Module. If your existing IPD card failed, this is the direct swap — no rewiring or parameter changes needed at the board level.
The product status is Active, meaning Siemens currently manufactures and supports this spare part. RoHS compliance dates from 01-04-18, and the REACH candidate list includes Lead (CAS 7439-92-1) above the 0.1% threshold — relevant for EU compliance documentation your quality team will want on file.