When sizing overcurrent protective devices (low voltage power cirucit breakers with adjustable LSIG) 240 of the NEC requres 800A or more the conductors are required to match the trip setting. I looked at a drawing today (one-line) that indicated 4-sets of 500kcmil with a 1600AF/1600AT setting, however the 75 degree rating of the conductors would make it 380A @ 4-sets is only 1520A, so the long time setting would have to be set to 1520A or below. Are there any terminations avaliable for 90 degrees that would allow me to get the full 1600A rating. I have been searching but have not been able to locate a 90 degree termination lug? Any suggestions or is 4-500's acceptable for a 1600A setting?