Depends. Within the standard, you can do 51w at the full 100m on standard cat6, which is 300ma/pair. If your runs are shorter, you should be good to go at the full type4 current, or, 960ma.

This is a good reference for this: https://www.5gtechnologyworld.com/what-every-engineer-should... which goes into how to calc your total bundle dissipation and whatnot.