In Reply to: Likely a common mistake. posted by Duster on February 17, 2015 at 12:44:07:
Ever wonder why the inventor/standard for the IEC connectors is not like that of the NEMA standard?With the NEMA standard for a straight blade NEMA 125V plug and a NEMA female receptacle cord cap used on an extension cord the female receptacle contacts make up configuration, there in the hot and neutral, run straight through for obvious reasons. With the IEC female connector mated to the NEMA male plug they do not run straight through, they shake hands. Do you suppose any rime or reason, thought, went into why the standard is the way it is? LOL, maybe the inventor just flipped a coin and that became the standard.
If a NEMA female receptacle cord cap was laid next to the female IEC connector as in your picture illustration it would be easy to see the difference. (It should be pointed out that IEC connectors can be used for 120V or 240V depending on country of use.)
With the NEMA standard, the wiring of the cord runs straight through.
With the NEMA 125V plug and the female IEC connector the wires must cross over one another to wire the IEC female connector for the proper polarity connection as you pointed out in your post.
Jim
Edits: 02/20/15
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Follow Ups
- Great picture illustrations. - jea48 07:45:58 02/20/15 (4)
- RE: Great picture illustrations. - Duster 14:39:12 02/22/15 (3)
- NEMA 5-15P inlet panel mount plug. - jea48 16:52:44 02/22/15 (2)
- RE: NEMA 5-15P inlet panel mount plug. - Duster 17:39:39 02/22/15 (1)
- RE: NEMA 5-15P inlet panel mount plug. - jea48 08:59:12 02/23/15 (0)