General information on determining operating currents
The operating current tables list the operating currents of the brakes at different voltages.
The acceleration current IB (= inrush current) flows for a short time when the brake is released (approx. 160 ms for BR.., BY.., and BZ.. brakes). With a direct DC voltage supply without a control unit (BR.D, BK.., BKB.., BP.., BY.D and BZ..D brakes), increased inrush current does not occur.
The values for the holding currents IH are effective values. Only use devices for the current measurement that are suitable for the measurement of effective values.
The following operating currents and power consumption values are nominal values. They refer to a coil temperature of +20 °C.
Operating currents and power consumption usually decrease during normal operation due to heating of the brake coil.
However, note that the actual operating currents can be higher by up to 25% when the coil temperatures are below +20 °C.
