subject:"Re\: \[RE\-wrenches\] Point of connection question"

Re: [RE-wrenches] Point of connection question

2013-10-09 Thread William Miller

renches.org] On Behalf Of August Goers Sent: Wednesday, October 09, 2013 3:40 PM To: RE-wrenches Subject: Re: [RE-wrenches] Point of connection question William, You have 9 M190s each running at 800 mA according to spec sheet. That equals 7.2 A nominal output current. Plus you have 10 M250s

Re: [RE-wrenches] Point of connection question

2013-10-09 Thread August Goers

William, You have 9 M190s each running at 800 mA according to spec sheet. That equals 7.2 A nominal output current. Plus you have 10 M250s (if you look at your drawing) each running at 1 A = 10 A. 7.2 A + 10 A = 17.2 A * 1.25 = 21.5 A min breaker size. So, you'll need to round your breaker to a

Re: [RE-wrenches] Point of connection question

2013-10-09 Thread Ray Walters

HI William; I think you might have a problem. Looking at Enphase's ratings, the M190 has an output rating of 800mA, while the M250 has an output rating of 1.0 A. 10 M250s = 10 amps, 9 M190s = 7.2 amps 17.2 amps exceeds 80% of your 20 amp breaker. I know this won't actually happen, but my und