The 6SL3356-3AG41-0AA7: This is the replacement IPD card for a SINAMICS S120 water-cooled (CuNi) Motor Module rated at 1000 kW, 500-690V 3AC, 50/60 Hz, pulling 1025 A. It's the interface board between the drive control and the power stage — the card that handles gate drive signals and feedback from the IGBTs. If this card fails, the module won't fire. The 1025 A rating at 500-690 V tells you this lives on a high-power drive, typically feeding a large pump, conveyor, or compressor in heavy industry. That's not a rating you derate casually — the water-cooled CuNi busbar assembly is designed for sustained full-load current in a sealed cabinet. If you're swapping this card, the motor module is already pulled and on the bench.
No ITAR, no EAR restrictions beyond standard commercial controls.
This is a spare part — not a standalone drive, not a retrofit kit. It fits only the specific SINAMICS S120 water-cooled Motor Module for which it's listed. The 500-690 V range and 1025 A match the module's power stage; the 50/60 Hz line frequency is handled internally by the drive's DC-link. If you're ordering this for a different frame size or cooling variant, stop and verify the module type plate first — the wrong IPD card won't seat or will smoke on power-up. The card itself is the gate-driver and feedback interface. On the bench, you'll need the module's heat sink removed, the old card unbolted, the new one seated with fresh thermal interface material, and the fiber-optic or ribbon cables re-seated per the manual. No special tools beyond a torque screwdriver — but the alignment of the press-fit pins to the IGBT module is unforgiving. Rush it and you'll crack a gate resistor.