Is Maximum peak current the rated current of a Motor or not?

Discussion
1

Does anyone know how to get the rated current of a BLDC Motor?

I have the data sheet of a 24V BLDC motor but they only give the Maximum Peak current of 5.4A.

Now we know that during the initial start and to overcome the initial torque of the motor, the current is usually 3 times the rated current of the motor.

Now in this case could the 5.4 A be three times the rated current? If so this would make the rated current to be 5.4/3 which is 1.8 A.

The data sheets are a real pain in the butt could anyone be of help?

Brushless DC motor.pdf (178.5 KB)

2

My first thought is why do you need it ? if you rate all the components to take the >5.4A peak load, the system will always be in tolerance ?

Courty

1 Like
3

The input cap should look after it , but everything after that point should be rated for the peek

4

What is the input cap?

To be frank the motor will not start if the starting current is higher than the the controller can handle that is why I need to know whether the max peak current is the rated current or not and the data sheet is not clear on that.

5

Will be down on Thursday and will explain