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Open Roads Forum  >  Tech Issues

 > The Best Quality 200-Amp Solenoid I Have Yet Seen

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MEXICOWANDERER

las peñas, michoacan, mexico

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Posted: 07/10/19 01:25pm Link  |  Quote  |  Print  |  Notify Moderator

[image]

TROMBETTA

https://www.ebay.com/itm/Trombetta-12-Vo........6&hash=item1c9a588636:g:AzcAAOSw9mpaKQxQ


Trombetta seems to be using better materials and design for its electromagnet. Significantly stronger pull-in for the number of amps used to maintain full contact pull-in.

Just for curiosity's sake...

Stronger spring for fast release. Less arcing.

The maintain coil amperage is less than 2.0

GordonThree

Northern Michigan

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Posted: 07/10/19 01:45pm Link  |  Quote  |  Print  |  Notify Moderator

Sure looks heavy duty. Is it legit on the inside, did you cut one open?

Interesting ... according to the Trombetta website, their relays are made in USA and Mexico, so why re-import one from China? It's either a counterfeit or something else fishy going on?


2013 KZ Sportsmen Classic 200, 20 ft TT
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blownstang01

Upstate NY

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Posted: 07/10/19 01:45pm Link  |  Quote  |  Print  |  Notify Moderator

Thanks for posting, I was going to do a thread asking this very question. I bought one last week on Amazon and it was DOA. I ended up repairing the original one that came in our RV from 2006 (this is the starter-boost one) for now.

GordonThree

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Posted: 07/10/19 02:19pm Link  |  Quote  |  Print  |  Notify Moderator

This one?

Trombetta Bear at Amazon

225 amp rating, cont. duty, made in USA. I like the plastic guard between the terminals, prevent excitement when working with live cables.

MEXICOWANDERER

las peñas, michoacan, mexico

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Posted: 07/10/19 04:02pm Link  |  Quote  |  Print  |  Notify Moderator

The first clue is that it weighs three pounds. The second is a loud CLACK when energized. Low coil amperage, then a detectable jolt then the coil is de-energized. Regular can solenoids that look like a metalized Ford starter solenoid do not have the room inside. They increase amperage for more load capacity but that does nothing for a fast breakaway to minimize arcing and contact destruction.

For some reason [emoticon] I cannot find a bad Trombetta solenoid to autopsy. I jump through hoops to minimize failed components as one failure can total ten times the amount of a replacement.

pauldub

North of Seattle

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Posted: 07/10/19 07:23pm Link  |  Quote  |  Print  |  Notify Moderator

I have a failed Trombetta. I don't think it lasted any longer than the cheapo one that Winnebago installed originally.

pnichols

The Other California

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Posted: 07/10/19 07:34pm Link  |  Quote  |  Print  |  Notify Moderator

GordonThree wrote:

This one?

Trombetta Bear at Amazon

225 amp rating, cont. duty, made in USA. I like the plastic guard between the terminals, prevent excitement when working with live cables.


Yep ... that Trombetta 114-1211-020 model is what I installed in our Class C motorhome to switch it's battery bank into, or out of, the motorhome's 12 volt electrical system.

It's the solenoid in the 2nd line down of the chart in this .pdf. Mine is the silver contact version, which I think the "020" designates in the part number. Note it's 225 amp carry ("continuous") current spec and 600 amp peak inductive inrush current spec:
https://www.trombetta.com/wp-content/uploads/2019/07/bear-family.pdf


Phil, 2005 E450 Itasca Spirit 24V

MEXICOWANDERER

las peñas, michoacan, mexico

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Posted: 07/10/19 07:53pm Link  |  Quote  |  Print  |  Notify Moderator

pauldub wrote:

I have a failed Trombetta. I don't think it lasted any longer than the cheapo one that Winnebago installed originally.


"Have"
You still have it

The model number?

Trombetta has some pretty light-duty solenoids that look like White-Rogers units rated to 100-amps. I posted the picture to avoid confusion using the Brand name. A picture of the failed unit would work fine [emoticon]

MEXICOWANDERER

las peñas, michoacan, mexico

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Posted: 07/10/19 08:00pm Link  |  Quote  |  Print  |  Notify Moderator

A tip. The chattering of any type of solenoid will destroy it. The vastly increased arcing will eat stud plates and discs for lunch. Always verify adequate pull-in and maintain the voltage on the magnetic coil circuit. A Bosch Tyco relay uses milliamps of DC to hold the power contacts and the little relays will suffer a lot of abuse.

GordonThree

Northern Michigan

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Posted: 07/10/19 08:25pm Link  |  Quote  |  Print  |  Notify Moderator

I still don't understand why one would re-import a Trombetta from China, seems a good way to get scammed with a nock-off.

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