What this card does in the drive cabinet
The 6SL3353-3AE35-0AR4 is a factory-replacement IPD (Interface & Protection) board for a SINAMICS S120 air-cooled Active Line Module. It handles the gate-drive and protection logic between the control unit and the power stage, rated for 380-480 V AC three-phase at 50/60 Hz and sized for a 490 A module that delivers 200% reactive current during overload — meaning it can supply twice the nominal reactive current transiently for motor field weakening or line compensation.
Compliance and material considerations
The card contains lead (CAS-No. 7439-92-1) above the 0.1% threshold, triggering a REACH Article 33 duty-to-inform obligation — relevant for end-product declarations and waste-handling documentation. Export control is AL/N and ECCN:N, so no special license is required for cross-border shipment.
Fit note for panel builders
This is a drop-in replacement PCB for the existing Active Line Module frame. It does not change the module's footprint, bus connection, or cooling path. The FPGA-based design handles the 200% reactive-current profile, which is specific to the S120 Active Line Module's regenerative or line-compensation duty — not a standard motor-drive IPD card.