2DF4285 is manufactured by Reliance Electric as part of the SP500 series. The 15 HP version of this AC mains filter is associated with the 1SU41015 drive, and the 20 HP version of this AC mains filter is associated with the 1SU41020 drive. This filter is 11 lbs and has a power watts loss of 45 watts. It is optional that the panel or wall on which the filter/drive assembly is mounted is conductive. Conducted electromagnetic emissions are limited by the AC mains filter. Use caution when assembling the drive and the the filter. Failure to use caution may result in equipment damage or loss of life.