You can defeat the rejection feature of the bus that prevents installing twins by using twin breakers whose bus interface is identical to the single breakers. (They may cost more.)I encountered a 4040 panel yesterday (manufactured home) that had at least 6, maybe 8 twins in it.
How can that be?
You can defeat the rejection feature of the bus that prevents installing twins by using twin breakers whose bus interface is identical to the single breakers. (They may cost more.)
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