Are the three pole QO-GFI breakers rated for a high leg system?

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Are the three pole, QO-GFI breakers rated for a high leg system?

Issue:
Are the 3-Pole QO-GFI breakers rated for a high leg delta system?

Product Line:
Miniature Circuit Breakers

Resolution:
The 3 pole, QO-GFI breakers are only rated for 208Y/120 Vac systems. They would not work on a high leg delta system.