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AssuredElectrical, Master Electrician
Category: Electrical
Satisfied Customers: 4241
Experience:  Contractor-42+ Years in the ElectricalTrade
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I have ordered a 5000w (continuous) solar generator, which

Customer Question

Hi. I have ordered a 5000w (continuous) solar generator, which has 120v three-prong outlets. I want to connect it to my house with a transfer switch, but all the transfer switches seem to have a four-prong male connection. How can I connect the generator to the transfer switch? Keith Schnier, Fleming Island, FL
Submitted: 2 years ago.
Category: Electrical
Expert:  AssuredElectrical replied 2 years ago.

Welcome. My name is ***** ***** would be glad to assist.

What is the make and model?

It has no master output? Only 120 volt receptacles for individual use?

Let me know and we can continue,


Customer: replied 2 years ago.
It is a 120v outlet on the generator. Make and Model are irrelevant. Is there an adapter available or not?
Expert:  AssuredElectrical replied 2 years ago.


If using only 120 volts, you have to use a transfer switch designed for 120 volts, not 240 volts.

The neutral and ground are the same with both.

Purchase a 120 volt transfer switch, it only needs a single hot, neutral and ground.

3 wire connection only on a 120 volt transfer switch, not 4..

No way to use an adapter, you do not have 240 volts for the monitoring electronics to use as 240 volt automatic transfer switch.

NOW, if you are using a manual transfer switch, then you just do not use the 2nd input or output lug on the transfer switch.

A manual one will operate the same, it does not monitor the power

CLICK HERE and see one 120 volt transfer switch

While at that site, you can find several more and also manual switches

Let me know any thing further that may be needed,