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Old 06-10-2013, 02:13 PM   #1
New Member
Flagstaff , Arizona
Join Date: Jan 2012
Posts: 2
Is this the factory solar controller?

Hi all,

I'm trying to figure out what this relay is in my recently acquired 2005 International 28. It appears to have solar panel wires connected to it (but also positive batt cables to both sides...??), and has a Cat 5 cable running to nowhere (the cable is cut).

Is this a charge regulator and was the Cat 5 cable originally to the display unit? Can I eliminate this if I install another regulator (thinking of an mppt like solar Boost 2000).


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Old 06-10-2013, 02:14 PM   #2
Rivet Master
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Vintage Kin Owner
Naples , Florida
Join Date: Dec 2005
Posts: 7,428
NOPE! That is your battery disconnect solenoid.

We (at AM Solar) typically wire the solar charge controller's output directly to the batteries. Fewer connections mean less voltage loss!
Solar Tech Energy Systems, Inc.
Victron Solar Components and Inverters, Zamp Solar Panels, LiFeBlue and Battle Born Lithium Batteries, Lifeline AGM Batteries
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Old 06-10-2013, 11:27 PM   #3
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Flagstaff , Arizona
Join Date: Jan 2012
Posts: 2

Thanks -- I thought I heard it clicking when I threw the batt disconnect switch.

Can you help me with the other part of the question: what is that CAT 5 (blue sheath, 5 small wires connected to the bottom of the solenoid) supposed to connect to? (in my unit, the blue cable is snipped off).
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