I wired in the tub it runs for 10 minutes. With heater on then it trips the breaker outside. The tub is in the house I have a 50 amp gfi inside and a 50 amp outside in the box. It doesn't seem to do it when just the jets are running did I wire it backwards if so how can I check? Can anyone help please?

I wired in the tub it runs for 10 mins. with heater on then it trips the breaker outside. the tub is in the house i have a 50 amp gfi inside and a 50 amp outside in the box. it doesnt seem to do it when just the jets are running did i wire it backwards if so how can i check? can anyone help please?
Depending if the tub is a combination motor, electric heater, the unit usually takes a higher amperage branch circuit and GFCI breaker hookup. (85 amps) What does the Name Plate rating for the unit list as required wattage? Nm