Hi.
Is such allowed in USA building/electrical code for residential 230VAC split phase, AC, 60Hz ?

Utility pole------------>Utility energy meter------------->External main breaker, 200A-------------->breaker panel rails----------->circuit breakers---------->circuits

 

What's the possible problem with this configuration? External 2 pole line 200A feed breakers are common.
https://www.homedepot.com/p/Square-...with-QOM2200VH-Breaker-QOM2E2200NRB/100210055

The Square D by Schneider Electric QO 200 Amp Outdoor Circuit Breaker Enclosure includes a two-pole QOM2 frame sizes circuit breakers 100-225 amp capacity for use as an exterior disconnect. This breaker box is suitable for use as service entrance equipment for compliance up to 2017 NEC code, and is rated Type-3R for outdoor use. This enclosure accepts a B-Hub for top feed applications (sold separately). For non-service entrance equipment applications, ground bar PKOGTA-2 is included.

 

It's not just "allowed", it's preferred, and even required in some instants.
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Thanks.
If it is allowed for exterior use, should be useable for indoor externally to the main breaker, right ?

Outdoor located meter--------|--------indoor 200A breaker-------------indoor multiple breaker box----------circuits

Not 200A----> https://www.amazon.com/Square-Schne...e+circuit+breaker+panel&qid=1682790403&sr=8-5

 

As far as safety goes, it should be fine.
BUT.
The NEC ( National-Electrical-Code ) may not allow any uses that the
Equipment is not explicitly approved, or rated for.
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Thanks.
If it is allowed for exterior use, should be useable for indoor externally to the main breaker, right ?

Outdoor located meter--------|--------indoor 200A breaker-------------indoor multiple breaker box----------circuits

Not 200A----> https://www.amazon.com/Square-Schne...e+circuit+breaker+panel&qid=1682790403&sr=8-5

Sure but why if a mains breaker disconnect breaker is already in the typical indoor main breaker load-center box.

 

Sure but why if a mains breaker disconnect breaker is already in the typical indoor main breaker load-center box.

Because a non-utility second energy meter will be added to the dwelling apart from the photovoltaic inverter circuitry and existing net-metering.

 

Because a non-utility second energy meter will be added to the dwelling apart from the photovoltaic inverter circuitry and existing net-metering.

That's why it's nice to include details of why when originally asking these sorts of questions.