Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I am specifically referring to the standard NEMA 5-15 three hole outlet that is used in North America. What are the dimensions of the holes in the outlets?

Surprisingly, I am having difficulty in finding this information on line.

share|improve this question
    
I just measured a plug the neutral was .248" the hot was .246", both were .060 thick so the outlet would be slightly longer and wider. the ground was .192 x .187. – Ed Beal Mar 23 at 17:51

Let me introduce you to the wonderful world of Google Image search:

nema 5-15 dimensions

It's a great way to find drawings and other visual information.

Here's a drawing pulled from the search results:

enter image description here

Powercord CN

Dimiensions are millimeters with a comma used instead of a decimal point.

NEMA Website

Following some image searches and regular searches I also came across the official NEMA Website

This NEMA WD 6 - Non-Locking Plugs and Receptacles - Excerpt PDF should have the information you want.

share|improve this answer
1  
The first image does not take into account the difference in size between the "hot" and "neutral" holes. But the pdf attachment is detailed in that respect. Thank you! – BenA Mar 23 at 19:12
    
You're right. I think the included image must be for one manufacturer's plug and they decided to just use to same-sized prongs. – JPhi1618 Mar 23 at 19:15
2  
@BenA Three-prong plugs do not need to have polarized hot-neutral connections, as the third grounding pin provides that polarization. – Tyzoid Mar 23 at 19:29

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.