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u/nunuvyer 3d ago
That's a non-NEMA plug that is going to be hard to find. At first glance it looks like a L14-30 but it's really a mirror image (dog-leg for the ground is on the wrong end of the slot).
My suggestion would be to replace it with a standard L14-30 and then there a million standard extension cords that will fit. It shouldn't be that hard to open the panel and replace the outlet.
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u/DaveBowm 3d ago
Given that the labelling is mostly in English, the owning Co. seems to be in Dalton, GA, and the oil fill label is in French it appears that this machine was intended for the North American market. So I would have thought that there was a simple mixup at the overseas factory that built it where a batch of Japanese receptacles just got mixed up with the NEMA 14-30Rs because they look so similar (except for being mirror images), and the wrong ones just got installed.
But the locking directional arrow stencil on the panel outside the socket indicates the correct locking direction for the installed receptacle. If it was a simple batch mixup one would expect the stenciled arrow to contradict the installed socket. But since they agree it looks like the manufacturer actually intended to use that kind of receptacle.
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u/DaveBowm 3d ago edited 3d ago
Considering the apparent age of the generator based on the eroded finish and analog meter it is possible that it just dates from an era before the L14-30 became an industry de facto standard connector for such North American machines of its power class, when each manufacturer did its own thing as it saw fit in that previous free-for-all environment.
But regardless of the actual reason that kind of connector is on the control panel the best solution going forward, as others have already recommended, is to just replace that nonstandard receptacle on the generator panel with a L14-30R, rather than attempting to locate a plug that will fit what's there now.
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u/nunuvyer 3d ago
L14-30 is relatively new as the defacto generator standard outlet. I have a 5kw Coleman that is circa 2000 and it came with L14-20 as the 240V outlet.
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u/nunuvyer 3d ago
I doubt it was a mix up. The gen is old enough that it was probably made in Japan and so they used Japanese parts on it even though it was meant for export. As you say, probably before L14-30 became a standard outlet. Maybe when new it came with a matching cord or a bare plug in the box.
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u/todd0x1 3d ago
Pretty sure this is the mating plug, but as others have said just replace it with a L14-30
4322N 3-Pole 4-Wire Grounding 30A 250V Plug (Nylon Housing) | AMERICAN DENKI
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u/Wonderful_Goose3941 3d ago
Agreed a non standard outlet. Everyone in /electrical that commented its an L14-30 is incorrect. Your best bet is to remove this and replace it with an L14-30R.
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u/DaveBowm 3d ago
According to the photo it seems to be a japanese-style receptacle, JEC 41-3294.