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What is the replacement 100A main breaker for the C1220QRB combination service entrance device?<br />

The original main breaker was a Q12100, which is obsolete and no longer available. The Q12100 can be replaced with a QO2100. The QO2100 is smaller that the Q12100, so this change will provide two extra space in load center.

CTA-ID : 2029632
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