Warner Electric ERD–Electrically Released Brakes User Manual
Page 2
2
Warner Electric • 800-825-9050
819-0453
W
arner Electric’s ERD series spring set, elec-
trically released brakes are designed to hold a
load when the power to the brake is off. ERD
brakes are offered in eight different sizes and
the characteristics of each are described under
“Specifications”. Brake options include a manu-
al release handle, dust cover, and thin or thick
friction flanges. A friction flange is to be mount-
ed to the back of the brake on applications
where the mounting surface is not suitable for
use as a friction surface for repeated stopping
and holding. The manual release handle offers
the operator the ability for controlled load
release without energizing the electrical coil.
Contents
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . .2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Electrical Connection . . . . . . . . . . . . . . . . . . . . .3
Torque Adjustment . . . . . . . . . . . . . . . . . . . . . . .4
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Brake Components . . . . . . . . . . . . . . . . . . . . . .5
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Warranty . . . . . . . . . . . . . . . . . . . . . . .Back Page
Failure to follow these instruc-
tions may result in product damage, equip-
ment damage, and serious or fatal injury to
personnel.
Specifications
Options Units ERD 5 ERD 10 ERD 20 ERD 35
ERD 60
ERD 100
ERD 170 ERD 300
Holding Torque
in.lb.
45
85
175
310
530
890
1500
2650
Maximum Speed
RPM
3600
3600
3600
3600
3600
3600
3600
3600
Nominal Airgap
Inch
.008
.008
.008
.012
.012
.012
.012
.012
Maximum Airgap
Inch
.020
.025
.020
.030
.030
.035
.035
.040
Current Draw
Amps
24 VDC
0.83
1.03
1.22
1.61
1.94
2.35
2.73
4.11
90/96/103.5
96 VDC
0.21
0.26
0.31
0.41
0.49
0.569
0.69
1.122
190/207/215
190 VDC
0.11
0.13
0.16
0.21
0.27
0.38
0.38
0.61
Resistance at
Ambient Temp.
24 VDC
Ohms
28.9
23.4
19.6
14.9
12.4
10.22
8.78
5.83
90/96/103.5
96 VDC
454
372
310
233
166.2
168.6
139.2
85.63
190/207/215
190 VDC
1775
1450
1209
912
648.1
628.5
507.2
315.6
Weight
Ibs
2
4
7
10
14
22
34
57