3 prong receptacle for our 4 prong plug. Please help!

[hawkeye3point1]

I got the adapter to be able to use the three pin dryer outlet (10-30P). This is the old dryer outlet type without ground and the adapter has a 10’ grounding wire that you plug into the ground of a standard 120VAC outlet.

PSA, just do not do this with the supplied EVSE. Doing so will overloading your 30 amp circuit. It may seem to work, but that breaker will trip eventually or worse, overheat, arc, and start a fire.

The MME mobile EVSE pulls 32 amps when using the 240 vac adapter cord. You should only use a 24 amp EVSE on a 30 amp circuit.

And for the record, the 10-30 outlet is actually missing the neutral wire not the ground wire. The neutral blade on the mobile EVSE 14-50P adapter cord is not connected to anything, because the EVSE does not need 120 vac.

Sponsored

 

[RickMachE]

That appears to be a 6-50, whereas you need a 14-50. While there are adapters that let you convert, you really want them to change the outlet to the proper one. Hopefully they ran 4 wires, and used a 50 amp breaker.

 

[JMCH]

It is new… an add on to our solar installation. They’re going to provide a cord that supposedly acts as an adapter, but it’s on back order, current ETA is March. I’m hoping to find something much sooner.

 

[SpaceEVDriver]

Yes, use a licensed electrician.

But most EVSEs (they’re not chargers - the charger is in the car), do not use the neutral.

Yes, yes, evse != charger. That's irrelevant to the question.

Also irrelevant to the OP's question is what other EVSEs use. The four-prong plug on the Ford charging equipment that the OP asked about expects a neutral. It doesn't matter what any other system expects.

There is no adapter that can provide the Ford Mobile Charger (Ford's name for it) with the expected neutral if the neutral isn't there.

The only safe thing for the OP to do to fix this circuit for use with the Ford Mobile Charger is to have a qualified electrician put eyes on the circuit and find out what's going on with it and then make a recommendation.

 

[JMCH]

It says 50A on the receptacle. is it possible that it’s not?

 

[SpaceEVDriver]

It is new… an add on to our solar installation. They’re going to provide a cord that supposedly acts as an adapter, but it’s on back order, current ETA is March. I’m hoping to find something much sooner.

There is no safe adapter that can create the neutral line that the Ford Mobile Charger expects.

Your options are to double-check that this circuit has a 50 Amp breaker on it by looking at the breaker panel and the right wire size and then purchase a new EVSE that plugs into the NEMA 6-50R or have an electrician provide you with a fixed circuit.

 

[SpaceEVDriver]

It says 50A on the receptacle. is it possible that it’s not?

It's possible, but not very likely if you had an independent inspector at some point during the installation.

 

[Maquis]

It says 50A on the receptacle. is it possible that it’s not?

This will work.
https://www.amazon.com/ONETAK-Welding-Charger-Connector-Connecter/dp/B07V94TD6P/ref=sr_1_5?

The Ford Mobile Charger does not use the neutral.

 

[JMCH]

Thank you Maquis!! Ordered… it’ll be at my house when I get home from this trip. FFS.

 

[RickMachE]

It is new… an add on to our solar installation. They’re going to provide a cord that supposedly acts as an adapter, but it’s on back order, current ETA is March. I’m hoping to find something much sooner.

Unless you had this work done before the Mach-E was in existence, the electrician could have easily found the specs for the correct plug and wiring for the Mach-E.

 

[ShadowCVL]

There is no safe adapter that can create the neutral line that the Ford Mobile Charger expects.

Your options are to double-check that this circuit has a 50 Amp breaker on it by looking at the breaker panel and the right wire size and then purchase a new EVSE that plugs into the NEMA 6-50R or have an electrician provide you with a fixed circuit.

The Ford mobile charger doesnt use the neutral when connected to 2 hots, it only uses the neutral when connected to 1 hot. I have an adapter I got from amazon, works great, there is no neutral in my garage.

on a 220 circuit the neutral is only there for 120v applications.

Edit: The adapter I have is the same one Maquis posted

 

[phidauex]

Also irrelevant to the OP's question is what other EVSEs use. The four-prong plug on the Ford charging equipment that the OP asked about expects a neutral. It doesn't matter what any other system expects.

There is no adapter that can provide the Ford Mobile Charger (Ford's name for it) with the expected neutral if the neutral isn't there.

I can confirm that the Ford Mobile Charger does not connect the neutral, and doesn't expect it. A heavy duty 6-50P to 14-50R adapter does indeed work, and as long as the breaker is 40A or greater, it will be safe to use.

I have this adapter (bought from another seller, but appears to be identical) and regularly use it to charge at my in-laws. https://www.amazon.com/ONETAK-Welding-Charger-Connector-Connecter/dp/B07V94TD6P

Now, if the outlet is old and janky, or the wiring is insufficient, or the breaker to small, then it is best to get it reworked. No reason to mess around. But if everything else is good then this $20 adapter is a fine way to go.

 

[jjwolf]

That looks like new work, ask your electrician back to change the outlet.

If you look at the plug between the blades, you will see the writing NMEA 14-50 40A 250V~. The electrician needs to install a NMEA 14-50 outlet in place of the NMEA 6-50 that is there now.

Exactly the right fix.

 

[seattledan206]

Thats a welder plug. This would work. https://www.amazon.com/Couplago-6-A...fix=nima+16-50r+to+nema+14-50,aps,129&sr=8-17

 

[Carsinmyblood]

It says 50A on the receptacle. is it possible that it’s not?

In the best possible world, the outlet is matched to the breaker and wire. Anything marked 50A SHOULD be safe to deliver 50 amps.

In the real world, a 50A outlet can be installed on a 30amp circuit. That is not up to code and could cause someone to plug a 50 amp appliance to it. The wire will overheat until the breaker pops at which time someone installs a 50A breaker. THEN the wire will overheat with the rest of the circuit failing inside a wall.

The breaker has a number, the wire has numbers, the outlet has numbers and the appliance has numbers. It's not hard to tell if everything is safe.

Sponsored