NG Series Catalogue new corrections

SERIES
Energy Efficient TEFC Induction Motors
SERIES Induction Motors
Crompton Greaves’
series belongs to a family of state-of-the-art
energy efficient totally enclosed fan cooled (TEFC) 3 phase Induction
motors with cage rotor construction. An almost flat efficiency curve is
achieved by effectively utilizing materials (special grades of materials)
while minimizing losses. In conjunction with thermally optimized
frames, cooling fans are designed with low noise profiles. Higher
efficiencies at part loads result in greater energy savings making it
suitable for use when load variations exist.
The components are optimized using finite element analysis of
electromagnetic, structural, thermal and air flow, which ensures
better stress distribution and high structural rigidity. Adequate steps
have been taken in the electrical design process to make sure that the
natural frequencies of stator teeth and core remain well away from the
supply frequency. Appropriate selection of tolerances and fits in
addition to good manufacturing processes facilitate high level of
quality. The rotor and fans are separately balanced on precision
balancing machine to very stringent grades. All these put together,
result in extremely low vibration levels.
Value For Money
Efficiency (%)
580kW, 6600V, 2 Pole, 400 Frame Motor Efficiency Pattern
Load (%)
Salient Features
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Energy efficient fan cooled Induction motors (IM)
Cast Iron / Fabricated Steel frame
High efficiency levels even at part load
Good power factor
Low starting current
Low noise levels
Low vibration levels
Solid deep rotor bars arranged in single cage construction
Special double cage as per driven equipment requirement
IP55 Degree of protection
Class 'F' insulation with temperature rise limited to class‘B'
Vacuum pressure impregnation (VPI) insulation system
Axially ventilated rotor design
Antifriction bearings
Dynamically balanced rotors as per ISO:1940 Grade 2.5
Machined stator
Ease of maintenance, with simplified component sub-assemblies
Stringent quality checks
Motors for all applications
SERIES
Enclosure
:Totally Enclosed Fan Cooled (TEFC) - IC411
Power
:155 - 875kW (up to 2000kW*)
Voltage
:690 - 6600V (up to 11000V*)
Number of Poles :2 - 6 (up to 12 Pole*)
Mounting
:IM B3, IM B35, IM V1
Frame Size
:IEC 315 - 450 (500 - 630*)
Standards
:IEC 60034 / IS:325
Range includes
:Motors Suitable for Hazardous area,
Ex ‘e’, Ex ‘n’ and VFD Applications. *
* Available on request
NG Series Output Chart
1000
900
800
700
600
500
400
300
200
155
2
50Hz
4
60Hz
6
Pole
TEFC - 3 Phase Squirrel Cage Induction Motors
Performance Data - 690V, 50Hz
Item Code Description
1
2
3
4
5
6
7
NG 315 S H L2 A 2
1
NG
Energy Efficient TEFC IM
2
Shaft Height
315 / 355 / 400 / 450 mm
3
Frame Length
S (Small) / L (Large)
4
Mounting
H - Horizontal (B3)
V - Vertical (V1)
B - Foot Cum Flange (B35)
7
Pole
2/4/6
100%
load
75%
load
50%
load
100%
load
75%
load
50%
load
Rotor
Inertia
(kgm2)
Weight
(kg)
205
205
205
166
212
260
600*
600*
600*
31
39
45
0.92
0.92
0.92
0.91
0.91
0.92
0.89
0.88
0.89
95.5
95.9
95.7
95.3
95.8
95.5
94.3
95.1
94.6
3.75
4.25
4.75
2416
2512
2625
85
85
85
85
205
205
205
205
288
313
354
422
600*
600*
600*
600*
65
63
68
81
0.91
0.92
0.92
0.92
0.9
0.91
0.91
0.91
0.85
0.88
0.88
0.88
95.9
96.0
96.3
96.6
95.6
95.8
96.2
96.5
94.6
95.0
95.4
95.8
5.75
6.50
7.25
8.00
2526
3118
3263
3395
NG450 NG400
1604
1925
80
80
205
205
468
558
600*
600*
85
94
0.92
0.93
0.91
0.92
0.89
0.90
96.7
96.7
96.6
96.8
96.0
96.4
11.50
12.75
3747
3806
NG450 LH L2A2
NG450 LH L2B2
2983
2983
2082
2466
65
65
205
205
611
716
600* 129
600* 113
0.92
0.92
0.92
0.92
0.90
0.90
96.8
97.1
96.7
97.0
96.1
96.5
12.75
14.00
4882
5121
NG315
NG315 SH L2A4
NG315 SH L2B4
NG315 SH L2C4
268
322
369
1488
1488
1488
1285
1541
1766
80
80
80
215
215
215
206
247
282
600* 79
600* 91
600* 101
0.85
0.85
0.85
0.82
0.82
0.82
0.74
0.73
0.73
95.5
95.8
96.0
95.3
95.5
95.8
94.3
94.5
94.9
7.75
9.00
10.00
2371
2482
2585
NG355 SH L2A4
NG355 LH L2B4
NG355 LH L2C4
NG355 LH L2D4
300
350
400
450
402
469
536
603
1487
1488
1488
1488
1928
2248
2569
2891
80
80
80
80
205
205
205
205
301
355
400
443
600* 71
600* 117
600* 134
600* 132
0.87
0.86
0.87
0.88
0.85
0.84
0.84
0.86
0.78
0.76
0.76
0.79
95.7
96.0
96.2
96.4
95.6
95.9
96.1
96.4
94.8
95.1
95.3
95.8
11.50
12.75
14.00
15.75
2620
3223
3330
3509
NG400 SH L2A4
NG400 LH L2B4
500
625
670
838
1489
1489
3208
4009
80
80
205
205
488
610
600* 136
600* 168
0.89
0.88
0.87
0.87
0.81
0.82
96.7
96.9
96.6
96.4
96.1
96.4
20.50
23.00
3840
4364
NG450 LH L2A4
NG450 LH L2B4
NG450 LH L2C4
750 1005
800 1072
925 1240
1491
1491
1491
4808
5128
5929
70
70
70
205
205
205
744
773
892
600* 222
600* 202
600* 261
0.87
0.89
0.89
0.85
0.87
0.87
0.79
0.83
0.82
97.0
97.1
97.3
96.8
97.0
97.2
96.2
96.6
96.5
39.25
44.25
50.50
5078
5329
5671
NG315 SH L2A6
NG315 SH L2B6
NG315 SH L2C6
175
200
225
235
268
302
988
990
990
1693
1930
2172
110
110
110
215
215
240
195
220
254
600* 78
600* 104
600* 128
0.79
0.80
0.78
0.74
0.74
0.72
0.63
0.62
0.61
95.2
95.3
95.2
94.9
95.0
94.9
93.8
93.8
93.7
10.25
11.50
12.75
2569
2575
2816
NG355 SH L2A6
NG355 LH L2B6
NG355 LH L2C6
250
275
300
335
369
402
990
991
991
2414
2651
2894
100
100
100
205
205
205
273
307
336
600* 131
600* 148
600* 165
0.80
0.78
0.78
0.73
0.73
0.71
0.62
0.62
0.61
95.8
96.0
96.0
95.5
95.7
95.7
94.5
94.7
94.7
14.00
15.50
17.50
2731
3202
3477
NG400 SH L2A6
NG400 SH L2B6
NG400 LH L2C6
NG400 LH L2D6
350
400
475
550
469
536
637
737
991
991
991
991
3373
3855
4578
5301
95
95
95
95
205
205
205
205
367
415
490
565
600*
600*
600*
600*
139
157
179
200
0.83
0.83
0.84
0.84
0.80
0.80
0.81
0.81
0.71
0.71
0.72
0.72
96.2
96.3
96.5
96.7
96.0
96.1
96.4
96.6
95.1
95.4
95.7
96.0
26.25
29.75
34.00
37.75
3797
3169
4793
4587
NG450 LH L2A6
NG450 LH L2B6
NG450 LH L2C6
575 771
675 905
800 1072
993
993
993
5535
6498
7701
70
70
80
205
205
205
575
670
812
600* 182
600* 243
600* 293
0.84
0.85
0.85
0.81
0.82
0.82
0.72
0.74
0.73
96.7
96.7
97.0
96.6
96.8
96.9
95.8
96.7
96.3
55.00
62.75
69.75
5637
5652
5943
Speed
rpm
NG315
lo
(A)
Output
kW
HP
NG315 SH L2A2
NG315 SH L2B2
NG315 SH L2C2
175
225
275
235
302
369
2974
2974
2974
562
723
884
100
100
100
NG355
Is/In
(%)
NG355
Efficiency
NG400
Power Factor
NG450
2 Pole
A/B/C/D/E
NG315
4 Pole
Design Reference
NG355
6 Pole
6
In
(A)
Item Code
Tn Ts/Tn Tmax/Tn
(%)
(N-m) (%)
L2 - 690V, 50Hz
M1 - 3300V, 50Hz
M2 - 6600V, 50Hz
NG400
Current
Voltage
NG450
Torque
5
NG355 SH L2A2
NG355 LH L2B2
NG355 LH L2C2
NG355 LH L2D2
300
330
375
450
402
442
503
603
2981
2981
2981
2981
962
1058
1202
1442
NG400 SH L2A2
NG400 SH L2B2
500
600
670
804
2978
2978
650 871
770 1032
200
240
275
'*' marked figures are inclusive of IEC/IS tolerance.
Insulation is suitable for Class F with temperature rise limited to Class B. Designed for ambient temperature of 40°C.
The above values are subject to IEC/IS tolerance. Motors are designed for continuous duty. Motors for other duties available on request. Stator winding is delta connected.
The above performance figures are indicative in nature. The commitments will be made after studying specific requirement of the application.
TEFC - 3 Phase Squirrel Cage Induction Motors
Performance Data - 3300V, 50Hz
Torque
50%
load
Rotor
Inertia
(kgm2)
Weight
(kg)
NG315
75%
load
200
225
250
268
302
335
2977
2976
2976
642
722
803
110
115
115
215
215
215
40
45
50
600*
600*
600*
8
8
10
0.92
0.91
0.92
0.91
0.91
0.91
0.87
0.87
0.88
95.1
95.4
95.7
94.8
95.1
95.4
93.5
94.0
94.3
3.75
3.75
4.25
2394
2408
2518
NG355
2 Pole
100%
load
NG355 SH M1A2
NG355 LH M1B2
NG355 LH M1C2
NG355 LH M1D2
275
315
355
380
369
422
476
509
2980
2980
2980
2980
882
1010
1138
1218
100
85
90
90
205
205
215
215
55
63
70
75
600*
600*
600*
600*
12
12
14
14
0.91
0.92
0.92
0.92
0.90
0.91
0.91
0.91
0.87
0.88
0.87
0.89
95.6
96.0
96.3
96.3
95.4
95.8
96.1
96.2
94.4
95.0
95.2
95.5
5.75
6.50
7.25
8.00
2508
3112
3233
3347
NG400
50%
load
NG400 LH M1A2
NG400 LH M1B2
NG400 LH M1C2
NG400 LH M1D2
425
475
515
580
570
637
690
777
2978
2978
2978
2978
1364
1524
1652
1861
75
75
75
75
215
215
215
215
84
93
100
113
600*
600*
600*
600*
16
17
17
19
0.92
0.92
0.93
0.93
0.91
0.91
0.92
0.92
0.88
0.88
0.89
0.90
96.3
96.6
96.6
96.8
96.2
96.5
96.6
96.8
95.5
95.8
96.1
96.3
10.25
11.50
12.75
14.25
3790
3976
4134
4366
NG450
75%
load
NG450 LH M1A2
NG450 LH M1B2
NG450 LH M1C2
625 838
700 938
750 1005
2984
2984
2984
2001
2241
2402
65
65
70
215
205
225
123
136
145
600*
600*
600*
24
25
25
0.92
0.92
0.93
0.91
0.91
0.92
0.88
0.88
0.89
96.8
96.9
97.0
96.5
96.7
96.8
95.7
96.0
96.2
11.25
12.75
14.00
4709
4847
5069
NG315
100%
load
NG315 SH M1A4
NG315 SH M1B4
NG315 SH M1C4
200
225
250
268
302
335
1487
1487
1487
1285
1446
1606
75
75
75
205
225
225
43
48
53
600*
600*
600*
15
18
18
0.85
0.85
0.86
0.82
0.82
0.83
0.74
0.73
0.75
95.4
95.6
95.9
95.2
95.4
95.7
94.2
94.4
94.9
7.80
8.75
10.00
2410
2456
2573
NG355
lo
(A)
NG315 SH M1A2
NG315 SH M1B2
NG315 SH M1C2
NG355 SH M1A4
NG355 LH M1B4
NG355 LH M1C4
NG355 LH M1D4
275
300
340
375
369
402
456
503
1487
1487
1488
1487
1767
1928
2183
2410
70
70
70
70
205
205
205
205
58
58
71
70
600*
600*
600*
600*
18
20
22
23
0.87
0.86
0.87
0.88
0.85
0.83
0.85
0.86
0.78
0.75
0.78
0.80
95.7
95.8
96.0
96.2
95.5
95.6
95.9
96.2
94.6
94.7
95.1
95.6
11.25
11.25
12.75
14.00
2621
3115
3230
3334
NG400 SH M1A4
NG400 SH M1B4
NG400 LH M1C4
NG400 LH M1D4
NG400 LH M1E4
420
500
550
600
625
563
670
737
804
838
1489
1489
1490
1490
1490
2695
3209
3527
3848
4008
70
70
70
70
70
205
205
215
215
215
87
103
114
123
126
600*
600*
600*
600*
600*
25
29
36
36
34
0.88
0.88
0.87
0.88
0.89
0.86
0.86
0.85
0.86
0.87
0.80
0.81
0.80
0.81
0.82
96.5
96.7
96.8
97.0
97.0
96.4
96.6
96.7
96.9
96.9
95.8
96.0
96.1
96.3
96.3
16.50
18.50
20.50
23.00
26.25
3496
3671
4146
4357
4593
NG450 LH M1A4
NG450 LH M1B4
NG450 LH M1C4
NG450 LH M1D4
NG450 LH M1E4
650 871
715 958
775 1039
815 1092
875 1173
1491
1491
1491
1491
1491
4165
4582
4967
5223
5607
60
60
60
60
60
215
215
215
215
215
133
146
157
166
176
600*
600*
600*
600*
600*
37
42
43
49
47
0.88
0.88
0.89
0.88
0.89
0.86
0.86
0.87
0.86
0.87
0.80
0.80
0.81
0.79
0.82
97.0
97.0
97.1
97.1
97.2
96.8
96.9
97.0
97.0
97.2
96.1
96.3
96.5
96.4
96.7
39.25
39.25
44.25
44.25
50.50
5073
5046
5330
5304
5628
NG315 SH M1A6
NG315 SH M1B6
155
180
208
241
988
988
1499
1741
125
125
225
225
34
40
600*
600*
14
16
0.83
0.83
0.79
0.78
0.69
0.68
95.0
95.1
94.7
94.9
93.7
93.9
11.50
12.75
2590
2684
NG355 SH M1A6
NG355 LH M1B6
NG355 LH M1C6
NG355 LH M1D6
200
240
275
315
268
322
369
422
990
990
991
991
1930
2316
2651
3037
100
100
100
100
205
205
205
205
45
55
62
72
600*
600*
600*
600*
19
25
28
32
0.81
0.80
0.81
0.80
0.76
0.75
0.76
0.73
0.66
0.64
0.65
0.64
95.6
95.8
95.7
95.9
95.4
95.6
95.4
95.6
94.5
94.8
94.4
94.7
14.00
15.50
17.50
20.00
2726
3327
3464
3660
NG400 SH M1A6
NG400 LH M1B6
NG400 LH M1C6
NG400 LH M1D6
NG400 LH M1E6
360
415
450
475
500
483
556
603
637
670
992
992
992
992
992
3468
3997
4334
4575
4816
95
95
95
95
90
205
205
205
205
205
79
92
97
103
108
600*
600*
600*
600*
600*
32
33
37
40
38
0.83
0.82
0.84
0.83
0.84
0.79
0.78
0.80
0.80
0.81
0.69
0.68
0.71
0.71
0.73
96.1
96.3
96.4
96.5
96.6
95.9
96.2
96.3
96.4
96.5
95.0
95.4
95.6
95.7
95.9
26.25
29.75
34.00
34.00
37.75
3742
4266
4552
4787
4787
NG450 LH M1A6
NG450 LH M1B6
NG450 LH M1C6
NG450 LH M1D6
NG450 LH M1E6
525 704
575 771
630 845
700 938
775 1039
993
993
993
993
993
5052
5533
6062
6736
7457
70
70
70
70
70
205
205
205
205
205
112
122
132
147
163
600*
600*
600*
600*
600*
42
46
49
47
56
0.85
0.85
0.86
0.86
0.86
0.81
0.82
0.83
0.84
0.83
0.72
0.72
0.75
0.77
0.75
96.5
96.8
96.8
97.0
97.0
96.3
96.4
96.6
96.8
96.8
95.5
95.7
96.0
96.2
96.2
49.00
55.00
62.25
69.75
69.75
5020
5267
5557
5885
5902
NG450
4 Pole
Is/In
(%)
NG400
In
(A)
NG315
Tn Ts/Tn Tmax/Tn
(%)
(N-m) (%)
NG355
6 Pole
Speed
rpm
Efficiency
NG400
Output
kW
HP
Power Factor
NG450
Item Code
Current
'*' marked figures are inclusive of IEC/IS tolerance.
Insulation is suitable for Class F with temperature rise limited to Class B. Designed for ambient temperature of 40°C.
The above values are subject to IEC/IS tolerance. Motors are designed for continuous duty. Motors for other duties available on request. Stator winding is star connected.
The above performance figures are indicative in nature. The commitments will be made after studying specific requirement of the application.
TEFC - 3 Phase Squirrel Cage Induction Motors
Performance Data - 6600V, 50Hz
Torque
Rotor
Inertia
(kgm2)
Weight
(kg)
NG315
50%
load
175
200
225
235
268
302
2976
2975
2974
562
642
723
100
110
110
205
205
205
18
20
22
600*
600*
600*
4
4
4
0.91
0.92
0.92
0.90
0.91
0.91
0.86
0.88
0.90
94.7
95.1
95.4
94.4
94.8
95.2
92.9
93.7
94.2
3.25
3.75
4.25
2248
2368
2479
NG355
75%
load
NG315 SH M2A2
NG315 SH M2B2
NG315 SH M2C2
NG355 SH M2A2
NG355 LH M2B2
NG355 LH M2C2
NG355 LH M2D2
250
280
320
380
335
375
429
509
2980
2980
2980
2980
802
898
1026
1218
80
80
85
85
205
205
205
215
25
28
32
37
600*
600*
600*
600*
5
6
6
7
0.91
0.92
0.92
0.92
0.90
0.91
0.91
0.91
0.86
0.88
0.88
0.88
95.5
95.8
96.0
96.2
95.2
95.6
95.8
96.1
94.1
94.6
95.0
95.4
5.75
6.50
5.00
8.00
2937
3090
3206
3417
NG400 SH M2A2
NG400 LH M2B2
NG400 LH M2C2
NG400 LH M2D2
425
475
525
580
570
637
704
777
2978
2978
2978
2978
1364
1524
1684
1861
80
80
80
80
205
205
205
205
42
47
51
56
600*
600*
600*
600*
9
9
9
10
0.92
0.92
0.93
0.93
0.91
0.92
0.92
0.92
0.88
0.89
0.89
0.90
96.2
96.4
96.7
96.8
96.1
96.4
96.6
96.8
95.4
95.8
96.0
96.3
10.25
11.90
12.75
14.25
3502
3947
4113
4330
NG450 LH M2A2
NG450 LH M2B2
NG450 LH M2C2
590
650
725
791
871
972
2984
2985
2984
1889
2081
2321
65
65
65
205
215
215
58
64
71
600*
600*
600*
11
11
13
0.92
0.92
0.93
0.91
0.91
0.92
0.88
0.88
0.89
96.7
96.8
97.0
96.5
96.7
96.8
95.7
96.0
96.2
11.25
12.75
14.00
4633
4806
5023
NG315 SH M2A4
NG315 SH M2B4
NG315 SH M2C4
180
200
230
241
268
308
1487
1487
1487
1157
1285
1478
75
75
75
225
225
225
20
21
24
600*
600*
600*
7
8
8
0.85
0.86
0.86
0.81
0.82
0.83
0.72
0.74
0.75
95.1
95.4
95.7
94.9
95.2
95.5
93.8
94.2
94.6
7.75
8.75
10.00
2343
2451
2554
NG355 SH M2A4
NG355 SH M2B4
NG355 LH M2C4
NG355 LH M2D4
NG355 LH M2E4
265
295
325
350
385
355
395
436
469
516
1488
1488
1488
1488
1488
1702
1894
2087
2247
2472
75
75
75
75
75
205
205
225
225
205
28
31
34
36
40
600*
600*
600*
600*
600*
9
11
11
11
12
0.87
0.86
0.87
0.88
0.88
0.84
0.83
0.84
0.85
0.86
0.77
0.75
0.76
0.78
0.8
95.6
95.8
96.0
96.1
96.3
95.4
95.6
95.8
96.0
96.2
94.5
94.7
95.0
95.2
95.5
11.50
11.50
12.75
14.00
15.80
2600
2921
3199
3302
3474
NG400 SH M2A4
NG400 SH M2B4
NG400 LH M2C4
NG400 LH M2D4
NG400 LH M2E4
420
450
500
560
600
563
603
670
751
804
1489
1489
1489
1489
1489
2695
2888
3209
3594
3850
70
75
75
75
75
205
205
205
205
205
44
46
51
57
61
600*
600*
600*
600*
600*
14
13
15
15
16
0.87
0.88
0.88
0.89
0.90
0.84
0.85
0.86
0.87
0.88
0.77
0.80
0.81
0.82
0.83
96.3
96.5
96.6
96.8
96.9
96.2
96.4
96.5
96.8
96.9
95.5
95.8
96.0
96.3
96.5
16.50
18.50
20.50
23.00
26.25
3483
3635
4088
4294
4554
NG450 LH M2A4
NG450 LH M2B4
NG450 LH M2C4
630 845
750 1005
875 1173
1491
1491
1491
4037
4806
5607
65
65
65
205
205
205
65
76
88
600*
600*
600*
19
21
24
0.88
0.89
0.89
0.86
0.87
0.87
0.82
0.81
0.82
96.9
97.0
97.2
96.7
97.0
97.2
96.1
96.4
96.6
39.25
44.25
50.50
5021
5248
5572
NG315 SH M2A6
NG315 SH M2B6
NG315 SH M2C6
160
175
195
214
235
261
988
988
988
1547
1692
1886
120
120
120
225
225
225
18
20
22
600*
600*
600*
8
9
9
0.81
0.81
0.83
0.75
0.76
0.78
0.64
0.66
0.68
94.8
95.0
95.1
94.5
94.7
95.0
93.4
93.7
94.1
10.30
11.50
12.70
2430
2533
2665
NG355 SH M2A6
NG355 LH M2B6
NG355 LH M2C6
NG355 LH M2D6
215
240
275
315
288
322
369
422
990
990
990
990
2075
2316
2654
3040
90
95
100
95
205
205
205
205
25
27
31
35
600*
600*
600*
600*
11
13
14
15
0.80
0.80
0.81
0.82
0.75
0.75
0.76
0.78
0.65
0.65
0.65
0.67
95.6
95.5
95.8
95.9
95.4
95.2
95.7
95.9
94.5
94.0
94.3
94.7
14.00
15.50
17.50
20.00
2704
3293
3521
3616
NG400 SH M2A6
NG400 SH M2B6
NG400 LH M2C6
NG400 LH M2D6
NG400 LH M2E6
320
355
400
450
500
429
476
536
603
670
991
991
991
991
991
3085
3423
3857
4339
4821
90
95
100
95
95
205
205
205
205
205
36
39
43
49
53
600*
600*
600*
600*
600*
14
17
17
19
20
0.82
0.82
0.84
0.84
0.85
0.78
0.78
0.8
0.81
0.82
0.68
0.68
0.70
0.71
0.73
95.9
96.1
96.2
96.4
96.5
95.7
95.8
96.0
96.1
96.4
94.8
94.9
95.2
95.3
95.8
23.80
26.30
29.75
34.00
37.75
3585
3727
4245
4506
4709
NG450 LH M2A6
NG450 LH M2B6
NG450 LH M2C6
NG450 LH M2D6
560 751
630 845
675 905
775 1039
993
993
993
993
5388
6062
6495
7457
70
75
75
80
205
205
205
225
59
66
71
82
600*
600*
600*
600*
21
22
25
31
0.86
0.86
0.86
0.85
0.83
0.83
0.83
0.82
0.75
0.76
0.75
0.73
96.6
96.7
96.7
96.9
96.5
96.6
96.6
96.8
95.8
96.0
96.0
96.1
55.00
62.80
69.80
69.80
5240
5559
5802
6103
4 Pole
2 Pole
100%
load
NG400
50%
load
NG450
75%
load
NG315
100%
load
NG355
lo
(A)
NG400
Is/In
(%)
NG450
In
(A)
NG315
Tn Ts/Tn Tmax/Tn
(%)
(N-m) (%)
NG355
6 Pole
Speed
rpm
Efficiency
NG400
Output
kW
HP
Power Factor
NG450
Item Code
Current
'*' marked figures are inclusive of IEC/IS tolerance.
Insulation is suitable for Class F with temperature rise limited to Class B. Designed for ambient temperature of 40°C.
The above values are subject to IEC/IS tolerance. Motors are designed for continuous duty. Motors for other duties available on request. Stator winding is star connected.
The above performance figures are indicative in nature. The commitments will be made after studying specific requirement of the application.
SERIES
IM-B3 Mounting
3300V / 6600V
690V
FRAME
POLE
A
B
C
D
E
H
HD
AD
AE
AE’
2
4-6
2
4-6
2
4-6
2
4-6
2
4-6
2
4-6
508
508
610
610
610
610
710
710
710
710
800
800
1000
1000
630
630
1120
1120
900
900
1250
1250
1250
1250
216
216
254
254
254
254
280
280
254
254
250
250
70
90
80
100
80
100
80
100
80
110
80
110
140
170
140
210
140
210
170
210
170
210
170
210
315
315
355
355
355
355
400
400
400
400
450
450
900
900
955
955
965
965
1050
1050
1040
1040
1120
1120
820
820
835
835
845
845
890
890
940
940
885
885
1500
1500
1535
1535
1550
1550
1635
1635
1615
1615
1670
1670
1210
1210
1250
1250
1275
1275
1430
1430
1400
1400
1400
1400
NG315S
NG355S
NG355L
NG400S
NG400L
NG450L
LD
1930
1960
1760
1840
2030
2100
1970
2015
2200
2245
2310
2350
L
2260
2280
2100
2180
2240
2310
2220
2260
2460
2500
2530
2570
All dimensions in mm
SERIES
IM-V1 Mounting
FRAME
M
N
P
S
D
E
T
AD
AE
L
315
600
550
660
24
90
170
6
950
1885
2200
355
740
680
800
24
100
210
6
975
1975
2125
400
940
880
1000
28
110
210
6
1050
2085
2530
450
1080
1000
1150
28
110
210
6
1110
2200
3075
All dimensions in mm
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Ref. - CG / LRM - India / 2013 / NG Series Leaflet / R00 / July’13
Due to continuous product improvements and its incorporation, CG reserves the right to change the design, technical specifications and dimensions without prior notice.
For more information: