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Can the QB/QD/QG/QJ - 2 and 3 pole breakers be used on a Grounded B-Phase (corner-grounded delta) 240V system?

The QD, QG, and QJ 2-pole breakers are labeled for use on 240V grounded B-phase systems.
The QD and QG 3-pole breakers are labeled for use on 240V grounded B-phase systems.
The QJ 3-pole breaker is not marked for 240V or grounded B phase application. The QJ 3-pole breaker is rated for 208Y/120.
The QB is not labeled for grounded B phase applications. All Q frame grounded B-phase ratings are 10 kA.


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