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I'm using a Pierburg CWA50 for both my motor cooling loop and Tesla battery cooling loop. For the controller + DC/DC loop I'm using a smaller Buhler 1.24.021 pump.
The CWA50 is PWM controllable and I will set the flow (and thus power consumption) based on the amount of cooling required.
It can pump up until 30 liters per minute but does draw almost 7 Amps (80W) while doing so.
At 19 liters/minute it is only 2 Amps.
More details in my blogpost: Controlling Pierburg CWA50 pump using Arduino successfull
 

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248 Posts
Discussion Starter #3
I'm using a Pierburg CWA50 for both my motor cooling loop and Tesla battery cooling loop. For the controller + DC/DC loop I'm using a smaller Buhler 1.24.021 pump.
The CWA50 is PWM controllable and I will set the flow (and thus power consumption) based on the amount of cooling required.
It can pump up until 30 liters per minute but does draw almost 7 Amps (80W) while doing so.
At 19 liters/minute it is only 2 Amps.
More details in my blogpost: Controlling Pierburg CWA50 pump using Arduino successfull

Thanks. I just ordered one. That should be perfect.


Next I need one of these. http://store.evtv.me/proddetail.php?prod=diode
Have you seen a cheaper version anywhere?
 
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