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Charged with CA plug finally

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You can safely cut the bottom pin off the 14-50 adapter. It is an unused neutral pin, (no electrical connection inside the adapter) and this is the only difference between a 14-30, 14-50, and 14-60, so once removed it'll now fit all 3 outlets. Just be sure you dial your amps down to 24 if you are using a 14-30 to avoid overloading the circuit.

can safely cut the bottom pin off the 14-30 adapter to make it more universal?

14-30_individual_1104937-00-B_0.png
 
can safely cut the bottom pin off the 14-30 adapter to make it more universal?
Yes, and I have done exactly that with my 14-30. The purpose was because I had some 3rd party adapter pigtails of 30A outlet types, like TT-30 and 10-30 but they switch to a 14-50 receptacle. To not overdraw accidentally, I did not want to use my 14-50 plug. The Tesla 14-30 with the neutral cut off lets it plug in there and set the current correctly.


Information: You can do that for plugs that do have two voltage pins and a ground AND a neutral. The Tesla UMC is only using those first three. But for other ones, like 10-30, it just has Hot1, Hot2, and neutral. Don't cut that one! 10-30 outlets are cheating and trying to have that neutral pull double duty as a ground also, and so the UMC uses it that way.
 
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Yes, and I have done exactly that with my 14-30. The purpose was because I had some 3rd party adapter pigtails of 30A outlet types, like TT-30 and 10-30 but they switch to a 14-50 receptacle. To not overdraw accidentally, I did not want to use my 14-50 plug. The Tesla 14-30 with the neutral cut off lets it plug in there and set the current correctly.


Information: You can do that for plugs that do have two voltage pins and a ground AND a neutral. The Tesla UMC is only using those first three. But for other ones, like 10-30, it just has Hot1, Hot2, and neutral. Don't cut that one! 10-30 outlets are cheating and trying to have that neutral pull double duty as a ground also, and so the UMC uses it that way.

I agree. From a safety perspective i'd do that to 14-30 UMC adapter vs 14-50 so I don't have to worry about dialing down the amps. The other way is better for more amps.


Can i break it off with pliers or is sawing recommended?