I-Line Busway offers a complete line of compatible, sandwich-type feeder and plug-in busway lengths and fittings. I-Line's plug-in busway has options from 225A to 5000A with aluminum or copper conductors; its feeder busway from 800A to 5000A. I-Line busway is constructed with three pole and four pole full neutral configurations for system voltages to 600 volts. This 10 foot plug-in section of busway has an aluminum bus rated at 600A at 600V. This busway system is configured for a 3 phase, 4 wire system and has a 50 percent capacity integral ground bus.