Siemens 6SL3351-1AE33-1AA2 PowerBlock is a replacement power block for MICROMASTER PX/SINAMICS drives, designed to mate with 3‑phase systems in the 380–480 V range. It supports 310 A (AC drive/power module rectifier and three‑phase inputs) and is intended for use with 50/60 Hz power. This unit is shipped as a factory‑crated spare part and carries Siemens' MLFB 6SL3351-1AE33-1AA2 designation. As a purpose‑built PowerBlock for replacement in MICROMASTER PX systems, it provides the essential rectifier and three‑phase connections needed by the drive module.
