What about Article 225.33 , 450.3(A) also 240.21 C(4)note two says Terminate in a single circuit breaker or single set of fuses. note 240.92 (B)(2) if it applys says 6. Hey this is a residental Service up here fer thoses with Electric Heat!!!
So Again Two, Six , or twelve .
225.30 Applies if the building is fed on the load side of a service disconnect. Because this is a customer owned transfromer it is not a service. But even if it is applicable 225.30(C) allows multiple feeders when the capacity is in excess of 2000A.
225.33 allows six disconnects per supply allowed by 225.30.
450.3(A) allows up to six disconnects unless Note 3 (supervised transformer location) applies. Which probably the case unless your HO (the one with electric heat) is maintaining this size oil-filled transformer.
240.21(C)(4) is per set of conductors not per transformer or supply, as is 240.92(B)(2).
I done gradgitated from da Tech.