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Bosco0633's plan to use a 60 amp tap breaker is fine, or you can use a 50. Assuming the wire on that breaker is approved for 60 amps. Under the NEC, #6 copper can be protected by a 60 amp breaker. Ontario code may differ, so please check any wiring you do with your local code enforcement office. Spa and pool wiring isn't a good place to learn, it's best left to electrician's or DIY'ers with some advance wiring knowledge. Not a good training grounds.Brewman