SINAMICS G120P blank cover for Power Module PM230, protection class IP55/UL Type 12 SINAMICS blank cover for the Power Module PM230 (protection class IP55) for the SINAMICS G120P frequency converter. If no operator control is required, a blank cover can be plugged onto the SINAMICS G120P frequency converter. By plugging the blank cover onto the Power Module PM230, protection class IP55/UL Type 12 is achieved. SINAMICS - simply my drive.