I don’t know what to make of that L-entrance. A possibility is that they simply reused a part from an existing production line and the L-entrance has no mechanical significance. It does provide orientation information when correctly inserting the parallel-blade plug, but that’s not indicated as a design-purpose anywhere that I can see. Possibly the corresponding blade-L is only at the tip and thus a plug _could_ be twisted but I’d have to disassemble the mechanism to see how it’s set up inside; it’s certainly not advertised that way. Given that the product is named as a “Tite” rather than a “Lock”, I’m inclined to go with the cost-effective production-line reuse theory, but then I haven’t tried to determine whether there actually was a corresponding “Lock” socket at the time. It remains a mystery!
From: [email protected] <[email protected]> On Behalf Of John, W9DDD
Sent: Monday, February 21, 2022 12:12 PM
To: [email protected]
Subject: Re: [GreenKeys] Hubbell Twist-Lock Help (evidently "Twist-Tite")
That's a bit wild. Why the L hook then? Perhaps some planned mating plug with a polarity hook on it that didn't become popular enough to become a standard? Can't say I've ever seen the male plug that would have been designed specifically to be a twist lock rather than parallel blade to fit that, and I spent 10 years in a plant that was full of old stuff.
I have to say I've never heard the term twist tite before and I worked with a bunch of electricians 30 years my superior. They always said twist lock in reference to actual twist lock and old terminology tended to last over new. So it didn't seem to be in their vocabulary either.
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The above comments or recommendations are SWAG. Use at your own risk.
John, W9DDD
On 2/21/2022 9:21 AM, Nick England wrote: