Generator Adapter
#1
08-10-20, 04:46 PM
Join Date: Aug 2015
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Generator Adapter
So I ordered a 6-20P to 14-30R adapter. Is it safe to use this to convert my 3 prong 6-20P generator to my 4 prong 14-30R transfer switch on my house?
#3
08-12-20, 07:24 PM
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The 14-30R on the transfer switch is 240v though right?
This is what I bought:
https://www.amazon.com/NEMA-6-20P-L14-30R-Plug-Adapter/dp/B00DL91092
This is what I bought:
https://www.amazon.com/NEMA-6-20P-L14-30R-Plug-Adapter/dp/B00DL91092
#5
08-13-20, 11:35 AM
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Well, the 14-30 is the only input on the transfer switch. So, I assumed the transfer switch would handle it. But I may be wrong?
Last edited by sundancevette; 08-13-20 at 01:23 PM.
#6
08-13-20, 02:07 PM
If the transfer switch has a 14-30 inlet then yes the adapter you purchased will work but for only 240V. My point is if your generator only has a separate 120V outlet and 240V outlet then you can not supply the house with both 120V and 240V via the transfer power inlet. The generator will need to have a 14-20 outlet to supply both 120V and 240V to the house. So the question is are you looking to power 120V circuits in the house?
Last edited by pattenp; 08-13-20 at 02:24 PM.
#7
08-13-20, 05:14 PM
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#8
08-13-20, 06:19 PM
Sorry to say, but no. If the generator has a bonded neutral technically the ground would be the same as the neutral. The only way to know is to check to see if you get 120V from the generator for each leg to ground on the 14-30 end of the adapter cord. In theory since the ground is bonded at the main panel you'd have 120V on each side of the panel. But again it depends on the generator having a bonded neutral. I just can't imagine having a 6-20 to 14-30 adapter would be intended to get 120V/240V from a 240V only outlet by using the ground as a neutral.
