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What is the QO-DF and the HOM-DF breaker (Dual Function)?

What is QO-DF, HOM-DF (Dual Function)? Is there any literature or product information available on these breakers?

Product Line:
Circuit Breakers

Applies to QO and HOM breakers with DF suffix.

The DF suffix on certain QO and HOM breakers indicate they are "dual function" breaker, meaning they include arc fault protection (AFCI) and 5mA ground fault people protection (GFCI), in one breaker. So DF Dual Function breakers combines CAFI and GF technology into one breaker.
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