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What is the interrupting rating of the QO115 and QO120 breaker?

Prior to 1971 the QO interrupting rating was 5,000 amperes. In 1971, 10,000 amperes was optional and identified by a green handle. Starting in 1975, all QO115 and QO120 were 10,000 amperes, the green handle was eliminated and replace with a black handle.

CTA-ID : 2021561
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