Sub panel

[nizak]

Is a main breaker required in a 12 space sub panel that is being fed from the main service in a commercial building?

The building is divided into 3 suites with the main service panel being located in the storage area of one of the suites.

There is access to the breaker feeding the sub by going into the occupied suite.

All power is metered at the main and the building owner charges a set rate for electricity monthly to each of the 3 tenants.

Thanks

 

[charlie b]

As long as there is a breaker in the main service panel that feeds the subpanel, you have the required overcurrent protection. It's fine.

 

[hornetd]

Is a main breaker required in a 12 space sub panel that is being fed from the main service in a commercial building?

The building is divided into 3 suites with the main service panel being located in the storage area of one of the suites.

There is access to the breaker feeding the sub by going into the occupied suite.

All power is metered at the main and the building owner charges a set rate for electricity monthly to each of the 3 tenants.

Thanks

I would actually prefer that there be no Main Disconnect in the Feeder Supplied Panel. That would mean that you would apply lockout and tag out to the Feeder's breaker and there would be nothing energized in the feeder supplied panel at all.

This could be one good effect of the requirement for external disconnects. Every one of them will have a means to completely deenergize the Panel board were the individual breakers are.

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Tom Horne