Quote:
Originally Posted by asid61
Ah, okay, that makes sense. I thought the breaker would trip faster than that, but great! We're going to be designing for a 6 cim drive then.
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Just a word of caution: If you stall a CIM it pulls ~133A. If you stall a 6 CIM drive, it'll pull somewhere between 400-500% of the rated current for the main breaker (current being limited to the batteries internal resistance, I don't have that number in front of me right now). That will trip the main breaker in 1-6 seconds (as per the chart above). The 40A snap action breakers will be at ~ 250% of rated current and may take longer than the main breaker to pop (again I don't have the spec sheet in front of me) and that's not accounting for any other electrical load you have at that moment.
Basically, ensure your 6 CIM drivetrain is never in stall (make sure it's traction limited, not torque limited).