PDI Powerwave Busway plug-ins feature tap boxes that plug straight in at any point for a smaller installed footprint; separate mechanical and electrical connections; live installation; Class B, 148C insulation; electrical grade copper bus construction; nickel-plating to resist corrosion; and ETL/UL listed ratings of 250 or 400 amps. The tap boxes may be used with both the 250 and 400 amp busway and are available with an isolated, built-in communications channel, whichoffers flexible mounting for ease of installation.