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What does the suffix 5219 mean on QO or HOM breaker?

Issue:
Define suffix 5219
 
Product Line:
Miniature Circuit Breakers
 
Environment:
Factory installed accessories on QO or Homeline Circuit breaker
 
Resolution:
It is the substitution of a high amp lug on a low amp breaker. It is only available on 15-30A QO or HOM breakers. UL approved.
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