Generator Adapter

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  #1  
Old 08-10-20, 04:46 PM
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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?
 
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Old 08-11-20, 08:19 AM
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Do you realize a 6-20 is only 240V and does not supply 120V from the generator?
 
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Old 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
 
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Old 08-13-20, 07:32 AM
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The 14-30 is 120V/240V. So you are only wanting to power something at 240V? I assume the neutral on the 14-30 of the adapter is not used.
 
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Old 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.
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Old 08-13-20, 02:07 PM
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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.
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Old 08-13-20, 05:14 PM
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I guess I assumed the transfer switch or the home handled it, splitting the 240V into 120V
 
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Old 08-13-20, 06:19 PM
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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.
 
 

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