Thermal arc circuit board connector identification

Looking to identify this connector. was soldered onto a welder’s circuit board. Welder is a thermal arc 300amp ac/dc model.

few markings on it: 3, JST, H. thats all i can find. Thank you!

I do not find that part in JST site it maybe a custom part. you may have to connect the end manufacture for the information on the part and if they have that or any details on that.

Weclome to the Technical Forum. The closest I can see are the XH series on this link:

You would have to check the pitch of the connector. This would be measured from the center of one pin to the center of the next one. That might help narrow down options. These were the closest I could find to what it looks like.