IEC connector with rotated ground pin ??

[frogblender]

The attached pic shows the power cable from my battery pack to my controller. It looks like a regular IEC power connector (just like on the back of your computer and monitor), but the ground blade is rotated 90°.

Does anyone know where to get this part?

 

[Punx0r]

It looks like it's a C21/C22 variant of the IEC lead:

http://en.wikipedia.org/wiki/IEC_60320

 

[frogblender]

It looks like it's a C21/C22 variant of the IEC lead:
http://en.wikipedia.org/wiki/IEC_60320

C21/C22 has all blades horizontal.
My mystery connector only has the ground blade horizontal.

My mystery connector is actually pretty good - it is connected and disconnected regularly from my battery pack, never gets a bad connection and never gets warm despite a) 35A going through it, and, b) being left out in the rain. It is also physically easy and fast to connect and disconnect (and is a one-handed operation), and is incompatible with the usual IEC connector (ie. if you loan your bike to your friend, he can't plug an AC mains cables into the DC pack).

 

[Punx0r]

Quite right - I missed that...

 

[beyeriii]

Please let me know if you found a source for this connector.

The Mongoose CX24V200 (and probably CX24V450) use this same connector from the motor to battery box.
The male connector inside the battery box has "3ESZT" stamped on it.
A Google search resulted in finding a Chinese site that referenced "3YEZT" along with the "3ESZT".
Perhaps 3ESZT is the male connector and 3YEZT is the female connector, i.e.
http://www.ddc.net.cn/offerlist/125194/452396.html

Elcom is one manufacturer of this type of connector, i.e. C13/14 with horizontal earth / ground pin.
The Elcom female cable PN is MC-29-H, i.e.
http://www.elcom-international.com/productdetails.php?productid=561&categoryid=27
The Elcom male socket PN is EMI-24-H, i.e.
http://www.elcom-international.com/productdetails.php?productid=556&categoryid=47

Finding a source of small quantities of these parts is very challenging.
If anyone knows of where to get small quantities of other manufactures,
please post it in this thread.

Thanks

 

[friendly1uk]

Cut out the unused pin?

 

[beyeriii]

Thanks for the idea, I did consider it, but will probably switch to standard IEC 13/14 connectors.

The danger of using standard IEC 13/14 connectors is someone down the road might try to plug a computer
power cable into the IEC 14 connector on the battery box and destroy everything.

Before switching to standard IEC 13/14 connectors, I am researching Anderson Powerpoles and other
DC connectors that might fit the battery box without heavy modification. One goal for the CX24V200
hop up is to be able to restore it to factory condition if desired.

Thanks again for the reply

 

[amberwolf]

If you're set on using the IEC-ac cord types, then you can key them to prevent any use of a regular cord:

Epoxy a strip of plastic in there along the long flat side between the two power pins on the recessed receptacle.

Mark the same section of the mating plug, and careful cut away just enough rubber/plastic on that to barely clear the key you just installed in the receptacle. Make sure you don't cut into the plastic around the conductors.


Now only that cord will fit into that receptacle, unless you make more cords like that.

 

[Punx0r]

If you are changing the lead/connector I would use a DC connector to eliminate the safety risk you mentioned.

 

[frogblender]

I would like to point out:

IMO, there is little risk of plugging the regular IEC connector into the IEC connector with the 90° ground blade. I tried this myself, and even a strong meathead would have trouble getting them to mate. For me, it would've required a hammer.