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It’s a good idea to keep dangerous power tools and appliances out of the hands of people who don’t know how to use them correctly, but who wants to keep everything in a tool crib like your shop teacher did? The Stopower cap offers a better solution, firmly locking onto any 115V American-style two- or three- pronged plug, requiring removal (with a key) before you can plug the attached tool into an outlet.

Other lockout solutions close around the plug and require a separate padlock. These locks come with their own individual keys, you can order larger numbers keyed alike. They cost between $10 and $16 dollars each, depending on the vendor. Of course, the fact that the small ones don’t require an individual padlock for each unit offsets some of the cost.

But who can put a price on preventing little Johnny from taking your recip saw out for a test drive?

Note: The Stopower is a little scarce on Google Products. Try a Google search for “Stopower lock” for more results.

Stopower Plug Lockout [BradyID.com]
Street Price [Google Products]


8 Responses to When in Doubt, Lock it Out

  1. Rob says:

    Those are pretty nice, a little overkill for a simple lockout but nice to keep someone from plugging something in if they’re really determined. For just a simple lockout to keep someone from plugging in something I’m working on, I use a little pin with a tag that goes through the holes in the prongs.

  2. Rob says:

    One more thing, a small padlock (like the ones that come with luggage) sometimes fit the small holes on the prongs too.

  3. jude says:

    that would suck if you lost the keys

  4. PutnamEco says:

    Looks like they would keep OSHA happy, now if only they had a place to tie a tag.

  5. Just slide the tag over one prong before installing the lock. Seems like it should work…

  6. Eli says:

    One cool thing about 240v outlets in Australia is all of them are switched at the outlet. You can’t do any electrical work on your own at all, but there was only one power point (outlet) in my garage. So I bought an 8 meter lead that has a switched outlet every meter and a plug on the end. Plugged into the existing outlet. Mounted all the other plugs at the top of the wall. So I can turn off the entire run as well as turn off each outlet, and everything is above my kid’s heads.

  7. vespas says:

    so what if your equipment has removable power leads? does something exist for ‘locking’ the power sockets on equipment?

  8. Tracy says:

    Yes, there are IEC lockouts available from at least one company. Reece Safety in the UK http://www.reecesafety.co.uk/IEC60320_connector_lockout_device.htm

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