Roof Fan Unit, 4 x Fan, 1U For installation in roof of all networking and server cabinets 19" Mounting possible with optional mounting set (Art.-No. 691654MS / 691654MSTS) Thermostat and mounting material included Rear-sided power connection via IEC C14 socket Rated voltage 230 V, 50 Hz Illuminated switch ON/OFF Rear sided earth connection via earth jack Material: steel sheet Paint finish: RAL7035 light grey