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What is a WH or "water heater" breaker?

Issue:
What is a water heater QO breaker?

Product Line:
Miniature Circuit Breakers

Resolution:
It was a special QO type breaker for applications where a separate meter was supplied for a water heater. The breaker did not connect to the bus, but had two pigtails which connected to the meter, and two terminals for connection to the water heater.
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