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Old 10-27-2011, 04:51 PM   #1
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Help in ID this?

It looks to be a relay or isolater of some type.
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Old 10-27-2011, 04:53 PM   #2
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It's a diode isolator. A kinda crude way to allow a charge source to charge both the house and chassis batteries, without allowing the battery banks to actually tie together.
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Old 10-27-2011, 05:05 PM   #3
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agree mine is a different brand but thats what it is
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Old 10-27-2011, 05:29 PM   #4
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An air cooled buss bar/heat sink, as the others have stated I believe it helps dissipate any excess heat build up
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Old 10-27-2011, 05:44 PM   #5
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Thanks guys. I figured as much but wasn't certain. I'll be bringing it home finally this weekend. Work hasn't allowed me much time to do anything to it lately. I must get it livable within the next week as its gotten very crowded where we live currently.
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Old 10-27-2011, 06:42 PM   #6
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May have been an add-on diode isolator however some coach mfg's (Winnebago did for a few years) used one of those to supply altenator charging voltage to the coach battery and also installed an isolator relay for AUX start capability. If you installed a B.I.R.D system you would eliminate the diode isolator and the B.I.R.D would control the isolator relay to provide the same functionality (without the 0.7 volt loss of the diode). Alternator runs at 14.1VDC however the coach battery would only see 13.4VDC minus cable run loss due to the diode voltage drop.

Dave
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