[RE-wrenches] Breakers weakening?

[Dave Angelini Offgrid Solar]

Not sure what specific design type of CB this is. You guys/gals do know
that most CB's are designed to Failsafe. They will trip before the rating
if there is anything internal that has been damaged or changed. Designed in
for protection. 

It is extremely rare that a CB from a quality
manufacturer will not trip. It could happen but I have not seen one. 


Dave Angelini Offgrid Solar
"we go where powerlines
don't"
http://members.sti.net/offgridsolar/ [1]
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text 209 813 0060

On Sat, 8 May 2021 19:32:31 -0400, Dave Tedeyan 
wrote:  Kirk, Could there be a loose wire connection to the breaker? That
could cause it to heat up an trip sooner than it otherwise would. Cheers,
Dave  
  On Sat, May 8, 2021, 2:13 PM Kirk Herander, VSE  wrote:  I have a
system where the SE10000 inverter fried internally. The 60A AC output
breaker tripped several times, as a result of the homeowner resetting over
and over until he called me. I replaced the inverter under warranty and all
is fine, except on sunny days the breaker will trip at about 40A, close to
the max output of the inverter. Reset it outside of peak inverter output
and its good. I assume the breaker has weakened from stress of some sort,
so I replaced it and time will tell. Anyone ever seen a breaker have it's
trip point reduced like this?

KIRK HERANDER /  

OWNER|PRINCIPAL, VT
SOLAR, LLC 

_CELEBRATING OUR 30TH ANNIVERSARY 1991-2021!!_


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