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Is the interchangeable trip unit (TU) in a Powerpact H or J breaker different than in a H or J with a factory sealed TU?

What is the difference between a Powerpact H or J frame breaker with a factory-sealed trip unit and an interchangeable trip unit?

Product Line:
Molded Case Breakers

Powerpact H or J

Difference of styles

The trip units are the same in either type of breaker. The breakers that have the Field-Interchangeable trip units have Line and Load Markings and they can not be back fed. They are available as unit mount only and are not available as I-Line. The "seal" is the real difference. If the seal is broken on a trip unit that is not replaceable the warranty is void.

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