and a loose live wire shorts against a grounded metal case and trips the breaker. Speaking of which where was the GFCI breaker in this circuit?
We added a hot tub during the whole COVID thing and the electrician who ran a 60 amp circuit out to our tub was quite detailed about the code requirement for a Ground fault circuit interrupter (GFCIs) and why they were required by code (and a darn good idea to have as well.)