I-Line™ Busway offers a complete line of compatible, sandwich-type feeder and plug-in busway lengths and fittings. I-Line plug-in busway has options from 225A to 600A with aluminum or copper conductors. These busways are constructed in three-pole and four-pole neutral configurations for system voltages of 600 volts and are rated to allow 100% of the current to flow. This hanger is rated 800A for Al, 1000A for Cu, that is ideal for commercial or industrial applications. Indoor horizontal busway requires one hanger for every 10 feet of busway. Vertical indoor busway requires one hanger for every 16 feet. Outdoor feeder busway requires one hanger for every 5 feet in horizontal mounting and one hanger for every 10 feet in vertical mounting. This hanger can be used with aluminum and copper busways. This unit is for horizontal flatwise mounting. This hanger meets the UL 857 standard, the CSA C22.2 No 27 standard and the IEC 61439-6 standard.