I am installing a 70 amp outdoor box, one 30 amp 220v and two 20 amp 110v breakers for a travel trailer. The meter loop is rated at 125 amp. I am running this service from the meter loop, main box under ground to the 70amp outdoor box. WHAT SIZE WIRE WILL I NEED TO USE, the total run from end to end is 120'.
Thanks in advance for your assistance.

Is there a disconnect or panel at the meter. You CANNOT simply come out of an existing meter.

You would need #6cu or #4al conductors in conduit. If you run cable then #4cu or #3al.

Is there a disconnect or panel at the meter. You CANNOT simply come out of an existing meter.

You would need #6cu or #4al conductors in conduit. If you run cable then #4cu or #3al.

Thanks for the response;
There is a breaker panel under the meter can with multiple blanks for the breakers.

What breaker would be required for this application and would I have to be concerned about a voltage drop over for this length of run?

The distancce from meter is 200 ft