Hw50 wired to 30 amp trailer

Iwannacamp · 09-01-2015, 10:23 PM

Hello I got my HW50 PI in today and read through the instructions... I didn't see a provision for using it on 30 amp service. Can someone tell a semi-idiot who has needed tools to wire this. I searched and couldn't find it.
Seriously. I know a little about a lot...I didn't wanna mess this up.

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davel1971 · 09-02-2015, 05:32 AM

isn't your 5th wheel in your pic 50 amp?

**wmtire** · 09-02-2015, 06:17 AM

Quote:

Originally Posted by Iwannacamp

Hello I got my HW50 PI in today and read through the instructions... I didn't see a provision for using it on 30 amp service. Can someone tell a semi-idiot who has needed tools to wire this. I searched and couldn't find it.
Seriously. I know a little about a lot...I didn't wanna mess this up.

Sent from my iPhone using Forest River Forums

It's kinda hard to really understand what exactly you are asking, but if it is using an adapter to hook your 50 amp RV into a 30 amp outlet, then according to the FAQ section of Progressive Industries........ yes, you are good to go.

Progressive Industries RV Surge and Electrical Protection industry lea

EMS-SURGE & VOLTAGE PROTECTION MODELS

Q: Should a Hardwired EMS be installed before or after the transfer switch?
A: A hardwired EMS should be installed prior to the transfer switch. The reason for this is most RV generators already have built-in voltage and frequency protection. If the EMS is installed after the transfer switch, this leaves the transfer switch vulnerable to power problems.

Q: Can I use an adapter and maintain full protection?
A: Yes. An adapter can be used and the RV will maintain full electrical and surge protection.

Q: Is there a difference in protection between the different EMS models?
A: No. All EMS's offer the same protection.

Q: Can I add a second remote display to the wired in models?
A: Yes, but only to the EMS-HW30C and EMS-HW50C models. An additional remote cannot be added to the LC-HW30 and LC-HW50 models.

Iwannacamp · 09-02-2015, 06:59 AM

No. It's a 30 amp service.

When you install a 50 in a 30 amp system isn't there an extra wire you install? A shunt or something....or is this rating just the duty cycle of the unit having nothing to do with the way it is wired?

I think I read on here there were special instructions for the use in 30 amp service...you know ...get the big one in case you move up

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fonzie · 09-02-2015, 07:12 AM

You need to put a jumper from line 1 to line 3 on the supply side only, nothing on the output of line 3. That way the the internal control will sense voltage on both input line.....supply needs to be 30 amps, 120 volts only.....line 2 should be the neutral....this is according to this instruction....

http://media.wix.com/ugd/439d5a_cf35...0394ec14a7.pdf

Post modified

Iwannacamp · 09-02-2015, 02:43 PM

Quote:

Originally Posted by fonzie

You need to put a jumper from line 1 to line 3 on the supply side only, nothing on the output of line 3. That way the the internal control will sense voltage on both input line.....supply needs to be 30 amps, 120 volts only.....line 2 should be the neutral....this is according to this instruction....

http://media.wix.com/ugd/439d5a_cf35...0394ec14a7.pdf

Post modified

Thank you. I will check it out.

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davel1971 · 09-02-2015, 06:22 PM

why would you get a 50 amp unit to install in a 30 amp trailer? Am I missing something here?

arpipeliner · 09-02-2015, 08:58 PM

If you upgrade to 50 amp you will already have it. Looking down the road probably.

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bob caldwell · 09-02-2015, 09:03 PM

Fonzie is the man! Always comes thru...

howie70 · 09-02-2015, 09:08 PM

Quote:

Originally Posted by bob caldwell

Fonzie is the man! Always comes thru...

aaayyyyyy

It was funny in my head picturing The Fonz with his thumb up. Kind of hard to capture.

Iwannacamp · 09-02-2015, 10:59 PM

Quote:

Originally Posted by arpipeliner

If you upgrade to 50 amp you will already have it. Looking down the road probably.

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Correct

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Iggy · 09-04-2015, 11:24 AM

Quote:

Originally Posted by Iwannacamp

Hello I got my HW50 PI in today and read through the instructions... I didn't see a provision for using it on 30 amp service. Can someone tell a semi-idiot who has needed tools to wire this. I searched and couldn't find it.
Seriously. I know a little about a lot...I didn't wanna mess this up.

Sent from my iPhone using Forest River Forums

To clarify what you are asking.
You have a 5th wheel with a 50 amp cord and installed a HW50 Progressive monitor in line. You ask do you have to do anything when hooked up to a 30 amp park service.

The answer is if you use a 50 amp to 30 amp pigtail you do not have to do anything.
The 30 amp service has 1 hot wire, 1 neutral and 1 ground.
What happens is the 30 amp pigtail splits the single 30 amp hot so it will feed both hots going into your 5th wheel.
Now you have to remember you can not exceed 30 amps total or you will trip the campground 30 amp breaker.
So in reality you only have 30 amps total to use in your 5th wheel as you are getting in reality two 15 amps capacity on each leg in the trailer.

Here is a basic wiring diagram of the 50 to 30 amp pigtail/convertor plug.
Hope this clarifies what you are asking.

howie70 · 09-04-2015, 11:41 AM

Quote:

Originally Posted by Iggy

To clarify what you are asking.
You have a 5th wheel with a 50 amp cord and installed a HW50 Progressive monitor in line. You ask do you have to do anything when hooked up to a 30 amp park service.

I do believe he said his 5th wheel is 30 amp and he is asking how to wire a 50 amp PI unit in it.

bob caldwell · 09-04-2015, 12:02 PM

Why couldn't you just treat the 50 amp female plug as the EMS? IN and OUT.

youroo · 09-04-2015, 12:04 PM

Quote:

Originally Posted by howie70

I do believe he said his 5th wheel is 30 amp and he is asking how to wire a 50 amp PI unit in it.

Yes you are Correct! This way when they Move Up to a 50A unit they can take this 50A HW unit,no need to sell a 30A at a Loss then have to buy a 50A! Smart way to go!

Youroo!!

Iwannacamp · 09-04-2015, 08:14 PM

Thank you for the help and interest. I do have a 30 amp trailer and a 50 amp EMS. I was told you could use one and the instructions are easy to follow and make perfect since...now that I know how.

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Iggy · 09-04-2015, 10:55 PM

Quote:

Originally Posted by Iwannacamp

Thank you for the help and interest. I do have a 30 amp trailer and a 50 amp EMS. I was told you could use one and the instructions are easy to follow and make perfect since...now that I know how.
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My question is why would you spend more money on a 50 amp Progressive monitor instead of a 30 amp which is what you needed.

You really don't get any advantage in the 50 amp monitor except it cost more. than a 30 amp model.

bob caldwell · 09-04-2015, 10:57 PM

Quote:

Originally Posted by Iggy

My question is why would you spend more money on a 50 amp Progressive monitor instead of a 30 amp which is what you needed.

You really don't get any advantage in the 50 amp monitor except it cost more. than a 30 amp model.

See post 15

Iggy · 09-04-2015, 11:32 PM

Quote:

Originally Posted by bob caldwell

See post 15

That is just a speculation. What if he doesn't move up to a 50 amp service or wants to rewire his whole service and change out his 30 amp circuit breaker panel to 50 AMP. Still a waste of $$$.

youroo · 09-05-2015, 04:38 AM

Quote:

Originally Posted by Iggy

That is just a speculation. What if he doesn't move up to a 50 amp service or wants to rewire his whole service and change out his 30 amp circuit breaker panel to 50 AMP. Still a waste of $$$.

You answered your own Question,if he changes over to 50A service he already has his 50A HW 50 PI!

Youroo!!

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