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What is the difference in a GFI breaker and an EPD breaker?

Issue:
What is the difference in a breaker with a yellow test button and one with a black test button?

Product Line:
Circuit Breakers

Environment:
Applies to QO and HOM breakers with suffix GFI, EPD, EPE

Resolution:
QO and HOM breakers with GFI suffix have a yellow test button. GFI breakers provide 5ma ground fault protection for people.
QO and HOM breakers with EPD suffix have a black test button. EPD breakers provide 30ma equipment protection.
QO breakers with EPE suffix have a black test button. EPE breakers provide 100ma equipment protection.
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