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Question

I need to replace an 3 blade receptacle on a generator with a 4 blade. Do I just wire the 2 hots and the ground?

Submitted: 154 days and 12 hours ago.
Category: Electrical
Value: $9
Status: CLOSED
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Posted by electrifier 154 days and 12 hours ago.

Info Request

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What is the receptacle rated on the generator? Is it 240 volts or is it 120/240 volts?
How many amps is it?
What kind of load are you going to connect to the generator?
  • If you need further clarification on anything I posted, please don't hesitate to ask
  • 100% customer satisfaction is my goal

154 days and 12 hours ago.

Reply

Power pro 5500 generator with 2 120 23 amp receptacles and one 240 3 blade receptacle
I am attaching to Reliance Control transfer switch model 302116brk
Will only wire to 4 15 amp and 1 20 amp breakers in service panel.
Trying to use the 4 blade cable that came with the transfer switch. Problem is not the same on generator.

Posted by electrifier 154 days and 11 hours ago.

Answer

Thank you for asking your question on graphic
You are corresponding with Bob - Your personal online "Electrical Consultant"

This generator does not product 120/240 volts and that is what you need. You can't just "hook it up" to a transfer switch and expect it to run a house. The 240 volt connection has no neutral.
You need a different generator to do what you are trying to do.
  • If you need further clarification on anything I posted, please don't hesitate to ask
  • 100% customer satisfaction is my goal

154 days and 11 hours ago.

Reply

So I can not use the 120 volt recptacles either. What about a Y Plug?

Posted by electrifier 154 days and 11 hours ago.

Info Request

Thank you for asking your question on graphic
You are corresponding with Bob - Your personal online "Electrical Consultant"

Do the 120 volt receptacles show 240 volts across the 2 hot wires? Is the neutral common to both?

  • If you need further clarification on anything I posted, please don't hesitate to ask
  • 100% customer satisfaction is my goal

154 days and 11 hours ago.

Reply

yes

Posted by electrifier 154 days and 10 hours ago.

Answer

Thank you for asking your question on graphic
You are corresponding with Bob - Your personal online "Electrical Consultant"

In that case you should be able to use them for 240 volts without a problem.
I can't guarantee anything because I don't have a drawing for the generator.
Do you have the manual for the generator that explains how to use it?

  • If you need further clarification on anything I posted, please don't hesitate to ask
  • 100% customer satisfaction is my goal

153 days and 10 hours ago.

Reply

I have the scan of panel and wire diagram

How do I get it to you?

Thanks

XXXX XXXX

Posted by electrifier 153 days and 5 hours ago.

Answer

Thank you for asking your question on graphic
You are corresponding with Bob - Your personal online "Electrical Consultant"

If it's a jpg you can upload it to here using the green icon in the toolbar above. It is for attaching pictures.

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  • 100% customer satisfaction is my goal

153 days and 5 hours ago.

Reply

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Accepted Answer

Thank you for asking your question on graphic
You are corresponding with Bob - Your personal online "Electrical Consultant"

You have available either 120 volts or 240 volts. There is no way to get 240 volts using the 2 sets of 120 volt receptacles. You will simply get 46 amps of 120 volts. You need a generator with a 120/240 volt plug on it.
  • If you need further clarification on anything I posted, please don't hesitate to ask
  • 100% customer satisfaction is my goal

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Expert: electrifier
Pos. Feedback: 99.1 %
Accepts: 
Answered: 6/23/2009

Master Electrician

Electrical contractor and electrical inspector for over 20 years with phone and networking expertise

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