How to open the MC120 connector

[Juanmax]

This is the result of it:

 

[beefchowmein]

opening another old thread. Just curious. How did you guys remove the black canister from the plug? I can't seem to take it apart even after removing the plastic switch with the security bit.

 

[PV-EV]

You have to unscrew the lock nut (with holes in it) that is visible inside the end with the pins. Use some long needle nosed pliers. This is described pretty well up thread.

 

[beefchowmein]

That was it!! Thanks for the help!!

 

[PV-EV]

You're welcome. I converted mine to 240v for use with a homemade EVSE.

 

[gregd]

You're welcome. I converted mine to 240v for use with a homemade EVSE.

Wait, you can put 240v into the 120v cord? North America car? What sort of connector, and what wiring? Does it need an EVSE, or just a 240v plug (e.g. 6-20)?

 

[PV-EV]

Both 120 and 240 use two conductors and a ground so no change there. I added a conductor for the pilot and wired this into a home made EVSE. This EVSE was hard wired to my load center, so no plug. This gave 16 amps @240v which was OK for my offgrid solar charging. I actually no longer use this setup. I have now modified a Stegen Electronics Smart EVSE and it changes the charge rate to the car based on the amps of PV being produced, essentially dumping all my excess PV into the car. I put a J1772 connector on that one and use adapters for the Roadster and Model S. Dismantling and reworking the old Roadster Spare Mobile connector was just the beginning of several years of tinkering and my project has, shall I say, matured.