UL Listing versus CSA listing status (was on grid battery...) [RE-wrenches]

[Christopher Freitas - OutBack Power]

I agree with Windy's statement but want to clarify one issue - 

CSA can test to a UL standard - but an approval to only a Canadian 
standard does not meet the US requirements.  A product has to be tested 
and listed to the US standard for installation in the US.  This testing 
can be done by any NRTL approved by OSHA.  

Currently, there is no direct comparable Canadian standard to UL1741 - 
but I hear that Canada is looking at adopting a version very similar.  
Inverters and such sold in Canada currently are evaluated under CS-22 
which is a generic power supply standard that is far easier to meet than 
UL1741.  

Christopher Freitas
OutBack Power Systems, Inc.
cfreitas at outbackpower.com  www.outbackpower.com
Tel 360 435 6030  Arlington WA USA

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