Warner Electric PTB-BL3 User Manual
Page 7
7
Warner Electric • 800-825-9050
819-0368
Electrical Data
Unit Size
Voltage
Resistance
Amperes
Watts
Torque Build Up Torque Decay
[ohms @ 75° F (25°C)] [@ 75° F (25°C)] [@ 75° F (25°C)]
(msec)
(msec)
0.3
24
35.6
.674
16.2
78
6
0.6
24
21.1
1.14
27.4
84
9
1.2
24
20.6
1.16
28.0
147
16
2.5
24
15.8
1.52
36.5
175
21
5
24
8.80
2.74
65.7
271
28
10
24
9.00
2.68
64.2
448
43
20
24
7.20
3.34
80.3
536
66
40
24
5.10
4.66
112
680
100
80
24
4.30
5.57
134
1310
300
Note: Build up time equals time for torque to build to approximately 63.2% of steady state value
after a step change in voltage. Decay time equals time for current to drop to approximately 36.8%
of steady state value after a voltage change.
Fan Motor Data (PTB-BL3 Brake only)
Size
Voltage
Wattage
(single phase 60 hertz)
2.5
115 VAC
20
5
115 VAC
38
10
115 VAC
38
20
115 VAC
38
Thermal Switch Data (PTB-BL3 Brake
only)
Type:
Normally Closed
Current Rating:
24 VAC
18 A
115 VAC
18 A
230 VAC
13 A