VFTM - three-phase powered (3x400 V / 50 Hz) with three-phase output (3x400 V / 0.1-400 Hz) frequency inverters for surface mounting or in a cabinet (IP21). In conjunction with an appropriately selected protection, the inverter can be used with ILT ATEX fans (details in the certificate of ILT - LOM - 11ATEX2026X fans). Maximum cable length between inverter and fan 50 m.