[RE-wrenches] Relay Drivers

[William Miller]

https://controlbyweb.com/





William Miller

Miller Solar

www.millersolar.com

CA License C-10 77398



*From:* RE-wrenches [mailto:re-wrenches-bounces at lists.re-wrenches.org] *On
Behalf Of *Drake Chamberlin via RE-wrenches
*Sent:* Tuesday, July 21, 2026 6:35 AM
*To:* RE-wrenches
*Cc:* drake.chamberlin at redwoodalliance.org
*Subject:* [RE-wrenches] Relay Drivers



Hello,



The Morningstar relay driver is a great device. It can measure 48VDC
nominal and operate relays based on the measured voltage. The problem is
that, if it is measuring 48VDC nominal, it outputs the same.



Is there anything besides a charge controller that can measure 48 VDC
nominal and put out a small 12VDC current? The 12VDC output of an Outback
or Midnite charge control is perfect.



If a relay driver, with several channels, could do this, it would be a very
useful device. Does anything like this exist?



Thanks,



Drake



*Drake Chamberlin*

*Athens Electric LLC*

*Ohio Electrical Contractor’s License 44810*

*NABCEP Certified PV Installation Professional*
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