Is an I-line panelboard that uses a backfed branch breaker as the main breaker suitable for use as Service Entrance?
Issue:
In an I-line panelboard, branch breakers can be used as backfed main breakers in order to feed the interior bus. Is this application of the I-line panelboard suitable for use as Service Equipment?
Product Line:
Panelboards
Environment:
I-line Panelboards with Backfed Main Breakers
Resolution:
Yes, but the backfed main breaker MUST be labeled as "Main Breaker" for the panel to be rated as suitable for use as Service Entrance. All panelboards contain a statement on the wiring and torque label indicating the panel can be used as Service Entrance Equipment when applied in accordance with NEC.
In an I-line panelboard, branch breakers can be used as backfed main breakers in order to feed the interior bus. Is this application of the I-line panelboard suitable for use as Service Equipment?
Product Line:
Panelboards
Environment:
I-line Panelboards with Backfed Main Breakers
Resolution:
Yes, but the backfed main breaker MUST be labeled as "Main Breaker" for the panel to be rated as suitable for use as Service Entrance. All panelboards contain a statement on the wiring and torque label indicating the panel can be used as Service Entrance Equipment when applied in accordance with NEC.
Released for: Schneider Electric USA
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