Hi,
I have a 800A Square D I-Line panelboard (480V, 3P) that will have a 100% rated MCB. The conductors will be (2) sets of 600 kcmil to utilize the full 800 amps. The wire will be 90 degree C but sized per the 75 degree C column in the NEC. Do the lug landings need to be rated for 90 degree C as well? I read that the entire assembly must be rated for 100% continuous use, but I'm unsure on temperature rating of the lug landings.
Thanks,
Minesh
I have a 800A Square D I-Line panelboard (480V, 3P) that will have a 100% rated MCB. The conductors will be (2) sets of 600 kcmil to utilize the full 800 amps. The wire will be 90 degree C but sized per the 75 degree C column in the NEC. Do the lug landings need to be rated for 90 degree C as well? I read that the entire assembly must be rated for 100% continuous use, but I'm unsure on temperature rating of the lug landings.
Thanks,
Minesh