Breaker AIC rating

jim dungar

Moderator
Staff member
Location
Wisconsin
Occupation
PE (Retired) - Power Systems
It appears that the thermal magnetic portion of the CB is 65, but the AFCI portion is not.
There is only one set of contacts so they can only have one AIC rating.
The energy released internal to the breaker may destroy the AFCI circuitry if the fault current is greater than 22k, but that would be a SCCR not an AIC.

Time to look at the UL documentation instead of trusting a marketing person's technical understanding.
 
Location
NE (9.06 miles @5.9 Degrees from Winged Horses)
Occupation
EC - retired
There is only one set of contacts so they can only have one AIC rating.
The energy released internal to the breaker may destroy the AFCI circuitry if the fault current is greater than 22k, but that would be a SCCR not an AIC.

Time to look at the UL documentation instead of trusting a marketing person's technical understanding.
Thanks. Did not make sense otherwise.
 

Grouch1980

Senior Member
Location
New York, NY
Time to look at the UL documentation instead of trusting a marketing person's technical understanding.
Can't say how many times that thought has gone through my head when looking at kitchen appliance cutsheets :ROFLMAO:... call the manufacturer and talk to one of their tech people instead of reading the cutsheet.
 
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