Quote:
Originally Posted by GeeTwo
I agree that there are no rules forbidding connecting a CIM to a motor controller on a 20A breaker. However, unless you just happen to have a stack of CIMs in your inventory and no smaller motors, this is rather like getting a truck with a V8 engine then feeding it with a tiny fuel line. You'd be better off using a mini-CIM or other mid-size "unlimited" motor which will perform better at 20A.
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+1. The extra power of the cim will be deadweight on a 20 amp breaker.
I would be concerned about running down the battery if I was using up every single 40 amp slot and still needed more cims.