MIL-DTL-17060G(SH)
3.6.6.1.3.2 Design C. With rated voltage and frequency applied, the locked-rotor torque of design C motors
shall be not less than the values specified in table X.
3.6.6.1.3.3 Design D. With rated voltage and frequency applied, the locked-rotor torque of design D, 4-, 6-,
and 8-pole motors shall be not less than 275 percent of full-load torque.
3.6.6.1.3.4 Design F. With rated voltage and frequency applied, the locked-rotor torque of design F, 4- and
6-pole motors, rated 30 hp and larger, shall be not less than 125 percent of full-load torque.
TABLE IX. Locked-rotor torque, designs A and B.
Synchronous speeds (r/min)
hp
3600
1800
1200
900
720
600
514
1
175
250
165
130
130
115
110
1½
170
235
160
130
125
115
110
2
160
215
155
130
125
115
110
3
150
185
150
130
125
115
110
5
140
175
150
125
120
115
110
7½
135
165
150
125
120
115
110
10
130
160
140
125
120
115
110
15
130
150
135
125
120
115
110
20
130
150
135
125
120
115
110
25
130
150
135
125
120
115
110
30
125
140
135
125
120
115
110
40
120
140
135
125
120
115
110
50
120
140
135
125
120
115
110
60
105
140
135
125
120
115
110
75
105
125
125
125
120
115
110
100
100
110
125
120
115
115
110
125
100
110
125
120
115
115
-
150
100
100
120
120
-
-
-
200
70
80
100
100
-
-
-
250
70
80
100
100
-
-
-
Over 250
70
80
-
-
-
-
-
30
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business