Lord I sure understand why I go out every day and see things that were a joke from the first day. It is due to the theory that if it works it must be right.
225.39 Rating of Disconnect.
The feeder or branch-circuit disconnecting means shall have a rating of not less than the calculated load to be supplied, determined in accordance with Parts I and II of Article 220 for branch circuits, Part III or IV of Article 220 for feeders, or Part V of Article 220 for farm loads. Where the branch circuit or feeder disconnecting means consists of more than one switch or circuit breaker, as permitted by 225.33, combining the ratings of all the switches or circuit breakers for determining the rating of the disconnecting means shall be permitted. In no case shall the rating be lower than specified in 225.39(A), (B), (C), or (D).
(A) One-Circuit Installation. For installations to supply only limited loads of a single branch circuit, the branch circuit disconnecting means shall have a rating of not less than 15 amperes.
(B) Two-Circuit Installations. For installations consisting of not more than two 2-wire branch circuits, the feeder or branch-circuit disconnecting means shall have a rating of not less than 30 amperes.
(C) One-Family Dwelling. For a one-family dwelling, the feeder disconnecting means shall have a rating of not less than 100 amperes, 3-wire.
(D) All Others. For all other installations, the feeder or branch-circuit disconnecting means shall have a rating of not less than 60 amperes.
If you're going to do something at least do it right of just leave it alone. If you are going to give advise give correct advise or just be quite.
EDITED TO ADD:
Let’s not forget all those answers to questions that have not as yet been ask such as the other requirements for this installation
Article 225 requires that a disconnect be installed at the building that will disconnect all incoming ungrounded conductors, 225.31
This disconnect is required to be rated as service equipment, 225.36
If there is going to be more than one circuit in that building such as one for the lights and another for receptacles then a minimum of 30 amp circuit MUST be installed.
Should there be more than two circuits out there then a minimum of 60 amp circuit MUST be installed and this will require at least a #6 copper conductor that CAN’T be NM nor SE cable.
The circuit installed will require both a neutral and an equipment grounding conductor. 250.32
A grounding electrode system is required at this building, 250.32.
This list goes on and on. There are several questions that have not yet been asked about the PROPER way to make this installation that carries some very strong life safety issues.
We need to stop giving out our opinions and “it will work†advice and start giving out correct advice to those who are seeking knowledge on how to make installations.