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Old 03-14-2013, 07:53 AM   #1
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Can someone identfy this

I suspect this is a relay ? I had a wiring kit give to me to wire my toad (Honda CRV) . Where would this be used if there is inline fuses ?
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Old 03-14-2013, 08:00 AM   #2
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Yes it is a relay.
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Old 03-14-2013, 08:15 AM   #3
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40/60 Amp 12 Volt Relay "Form C" SPDT "RoHS" Compliant
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Old 03-14-2013, 12:37 PM   #4
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Quote:
Originally Posted by view2a.thril View Post
Is it necessary
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Old 03-14-2013, 01:00 PM   #5
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Quote:
Originally Posted by scooterbob View Post
Is it necessary
That's a good question. It looks like from what I can read about it, a surge suppressing relay. It may be an inline surge arrest relay so if you get a spike in current going to the toad you don't fry what ever electronics are wired in with what's needed to actually tow your vehicle. I know someone smarter than me is going to expound on this but that's what it looks like to me.

It looks like there are several uses for it. Here's a good write up on "e-How" as to what it is used for:

How to Use a Relay in Car Electronics | eHow.com
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Old 03-14-2013, 01:44 PM   #6
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It is part of a brake light relay

Roadmaster Brake-Lite Relay Kit for Towed Vehicles Roadmaster Tow Bar Braking Systems RM-88400

It is necessary IF when you have your ignition switch OFF and you still have brake lights when the brake peddle is pushed.

According to what I have read, Its primary purpose it to prevent the toad's brake lights from over riding the brake light signal from the MH. When relay is not used and you apply brakes in the MH and at the same time have a turn signal on the toad's brake peddle will then cause the toad's brake system lights to over ride the MH's turn signal.

Again, that is what I have read and that doesn't seem to totally ring true when the toad has a separate turn signal bulb so this might be mostly true for toads with combined brake and turn signal bulbs.
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Old 03-14-2013, 02:00 PM   #7
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The surge suppression feature is on the coil, not on the load contacts, so the load being serviced would not "see" any surge suppression, only the coil is protected from stuff happening on the switch circuit the coil is tapped onto for switch signal.
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Old 03-14-2013, 03:51 PM   #8
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Originally Posted by EngineerMike View Post
The surge suppression feature is on the coil, not on the load contacts, so the load being serviced would not "see" any surge suppression, only the coil is protected from stuff happening on the switch circuit the coil is tapped onto for switch signal.
Thanks Mike. I knew somebody would be able to straighten me out.
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