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What color is the test button on the QO-AFI or HOM-AFI breaker?

What is the color of the push-to-test button?
Product Line:
Miniature Circuit Breakers
QO and HOM AFI breakers
The test button color on the QO-AFI or HOM-AFI breaker may be either blue or green.

(Note these are not the current arc-fault breakers.  The currently available models are the QO-CAFI and HOM-CAFI breakers and they have a white test button.)  
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