Hello,
Looking at coming up with the maximum ampacity for a #6 MTW wire rated at 105 degrees C. Bit confusing with all the different NEC ampacity tables. 3 conductors will originate on a distribution block in a large custom control cabinet ( about 4' x3') with breakers and relays for a piece of machinery. Cabinet door will have a door mounted load actuator disconnect switch on it. About 6 ' of wire will extend from the block inside to the switch and then back to another distribution block in the cabinet. The distribution blocks are rated at 120 degrees C but i dont see a temp rating of the load switch. Anyways trying to determine which table to use for this application. The load switch and fusing for the new setup is rated at 80 amps so i want to make sure #6 would be rated for 80 or if i have to go up in size. Thx
Looking at coming up with the maximum ampacity for a #6 MTW wire rated at 105 degrees C. Bit confusing with all the different NEC ampacity tables. 3 conductors will originate on a distribution block in a large custom control cabinet ( about 4' x3') with breakers and relays for a piece of machinery. Cabinet door will have a door mounted load actuator disconnect switch on it. About 6 ' of wire will extend from the block inside to the switch and then back to another distribution block in the cabinet. The distribution blocks are rated at 120 degrees C but i dont see a temp rating of the load switch. Anyways trying to determine which table to use for this application. The load switch and fusing for the new setup is rated at 80 amps so i want to make sure #6 would be rated for 80 or if i have to go up in size. Thx
