Hi
I have an 8'x24' construction trlr.
It is 220' from the main panal on my house.
The panal in trailer has a 100 amp main brkr. in it.
It has 4 wire (big) 1 blk. one red, 1 grn.,1 wht.
In the panel is also3/20 amp, 1 15 amp brkers.
Im assuming the 15 is for the a/c and the 20,z are for lites...