[RE-wrenches] AC coupled relay

[Kirk Herander, VSE]

I have done it with a SQD 60a, 240 vac contactor. The coil is 120 vac. It is
driven by a secondary 12vdc relay sending 120 ac to the coil. The coil of
the dc relay is driven by the 12 vdc auxiliary output of the Outback FX
inverter. I use the contactor and dc relay normally closed contacts. They
open when the inverter energizes the dc relay.

 

Kirk Herander

Vermont Solar Engineering

802.863.1202

NABCEP(tm) Certified Solar Installer

NYSERDA-eligible Installer

VT Solar Incentive Program Partner

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From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Jeff Yago
Sent: Wednesday, June 03, 2009 9:35 AM
To: RE-wrenches
Subject: Re: [RE-wrenches] AC coupled relay

 

What specific supplier, model number, and brand relay have you found to be
perfect to isolate the inverter AC output to the sub-panel of a
battery-based inverter in an AC coupled system?

 

This will be in the 20 to 30 amp 240 VAC contact range.  Also, do you
normally set it up as N.C. or N.O. for fail-safe reasons?   Coil voltage 12
vdc or 120 vac?  

 

Thanks,

 

Jeff Yago


 

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