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 flat elbow has an aluminum bus rated at 1200A at 600VAC. This busway component is configured for a 3 phase, 4 wire system and has a 50 percent capacity integral ground bus and high short circuit bracing.