Trying to decipher circuit breaker ratings

[dxpwny]

I'm trying to 'decode' some ratings written on some circuit breakers I have.

Can anyone tell me what "Ue", "I n", and "I cn" might refer to ?

The "Ue" apparently refers to a voltage, and the "I xx" to current.

 

[erikl]

If it comes from a German manufacturer, I'd think "Ue" refers to Eingangsspannung = input voltage ,
"I n" = Nennstrom = nominal current , which could mean either long-time rated current (no break) , or break current.
"I cn" I can only guess to be a break current which guarantees circuit breaking after a (somewhere stated) time period.

 

[dxpwny]

Thanks ... how about a rating of "Delay 62F" ... I assume that is the amount of time after the application of the trip current before it actually breaks ... but what is the "F" unit ? I'd understand something like "mS" or "uS" ... but "F" ???

 

[erikl]

I think this designation could refer to a time-delay characteristic (break time vs. nom. current). "F" probably means "fast".