Need to identify TX suffix on end of Powerpact breaker catalog number

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What does suffix TX indicate on a PowerPacT circuit breaker

Issue:
Define suffix TX on an H or J-frame breaker

Product Line:
Molded Case Circuit Breakers

Resolution:
TX suffix indicates metric terminal nuts factory installed on the ON end of the breaker. They can also be field installed with the following part numbers:
S37426 for H frame (contains two terminal nuts)
S37428 for J frame (contains two terminal nuts)