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Thread: Damaged hitch relay board

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  1. #11
    Join Date
    Mar 2013
    Location
    Chicago
    Posts
    3,988

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    No it is protected with circuit breakers and spade fuses. I'll email u a picture of the schematics for all 379 model peterbilt that was about a 15 yr run so more than a few. Mac KW Freightliner all of them r void of this converter added board of protection we r discussing.

    I quite electrcly ignorant so I'm still trying to wrap my brain around isolate power source from dedicated power.

    What protection does that board and relays provide that a circuit breaker and possibly a diod would not?

    Please enlighten me yoda sparky.
    Last edited by Joe Camper; 12-24-2021 at 11:13 AM.
    1990 Peterbuilt 377
    3406 B Caterpillar
    13 Speed Roadranger
    No Norgrens


    1 day on paper no machines

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