Comparing the designs

The following table compares the different designs using the BE2 brake for a EDRN90M4 motor as an example with regard to explosion protection.

 

BE.. brake

BE.. brake for
explosion-protected motors

Application

Working brake and
holding brake

Working brake
(HazLoc-NA®)Observe the reduced values for the no-load starting frequency and for the maximum braking work.

Working brake (ATEX, IECEx) and
holding brake (ATEX, HazLoc-NA®, IECEx)

Electric power consumption of the brake coil PB

43 W

43 W

34 W

Maximum braking torque

20 Nm

20 Nm

14 Nm

No-load starting frequency

Size

2200 h-1

460 h-1

460 h-1

BGE

5800 h-1

1200 h-1

1200 h-1

Maximum braking work of working brake at brake application speed

1500 min-1:

13260 J

1800 min-1:

3432 J

1500 min-1:

3822 J

Maximum braking work of holding brake at 1800 min-1

10400 J

–

3360 J