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Use of Breakers with ICR not listed for the system voltage

Use of Breakers with ICR not listed for the system voltage

Use of Breakers with ICR not listed for the system voltage

(OP)
All,
I am trying to use Eaton breakers type HFD in a 125 VDC system ungrounded.
The breakers have an Interrupting Capacity Rating listed for 250 VDC but not for 125 VDC.
I would like to know potential risks for the application.
Thanks

Yigo.

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