I removed the 50amp breaker for my range, which is a standard breaker, and inserted the 50 amp GFI hot tub breaker in the space of the range breraker.Now that I've re read your post, are you saying that you tested the GFI to your range, or did your wire the hot tub to the range breaker temporarily? Your gonna have to repost something more clear, I may have jumped the gun on my reply.
Thanks K Buz for that info. I did what you said and the breaker does turn on the range with out tripping.To test the breaker on the range circuit, you would need to remove the neutral of the range circuit from the neutral bar and install it on the breaker. Then run the neutral pigtail from the GFI breaker to the neutral bar.
That would be correct because your hot tub is only 240 volts and has no neutral for 120 volt loads. In this screnario a neutral is ran to the spa box from the main/sub panel and is connected to the neutral bar ... not to the breaker. The curly pigtail from the gfci breaker is then connected to the neutral bar of the spa box. It should look like this ....Thanks K Buz for that info. I did what you said and the breaker does turn on the range with out tripping.
When the breaker was on the hot tub circuit, (the hot tub has a separate panel box at a different location), the neutral from the hot tub circuit was on the neutral bar, not on the breaker. I have had the hot tub for over seven years and has worked fine all this time.