Defective NEMA 14-50 to NEMA 5-15 adapter

[bwilson4web]

I ordered an adapter to provide 120 VAC power to a NEMA 14-50, dual-voltage, EVSE and got this mistake:

• Both NEMA 14-50 socket receivers go to just one NEMA 5-15 pin ... NO POWER
• Center NEMA 14-50 socket receiver, current return, goes to the other NEMA 5-15 pin
• Mechanically a good part but electrically, a disaster!

Bob Wilson

 

[electriceddy]

I ordered an adapter to provide 120 VAC power to a NEMA 14-50, dual-voltage, EVSE and got this mistake:

• Both NEMA 14-50 socket receivers go to just one NEMA 5-15 pin ... NO POWER
• Center NEMA 14-50 socket receiver, current return, goes to the other NEMA 5-15 pin
• Mechanically a good part but electrically, a disaster!

Bob Wilson

Typical RV adapter to supply 120V to all outlets in an RV (where 14-50 receptacles may not be available). Will provide 120V on both lines in the RV's sub-panel.
Do not use for an EVSE.
There are some available specifically for EVs which will connect the identified conductor (neutral) of the 5-15 to one of the lines of the 14-50, while the other line connected to line supplying 120V across the line pins. The neutral of the 14-50 is not connected to anything and of course the bonding to ground is accomplished as normal thru the ground (rounded pin).