80 volts is approximately what you get with half wave rectified 120 V AC.
Unfortunately with no filter it might make the brake into a buzzer.

Cecil



On 02/11/2014 01:21 PM, Duesentrieb Yahoo wrote:
 > have not 80v dc. could take 120vdc.
 >
 > witch is plus, A or B ?

I'm pretty sure the polarity doesn't matter.  But, if the brakes
are designed for 80 V DC, 120 V will likely burn out the coils.
Power goes up as the SQUARE of voltage, so 120 V is
2.25 times more heat than 80 V.  (I have no idea what
the rated voltage for the brake actually is.)

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