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SB-30 Belt Drive
Performance certified is for Model SB for installation type A: free inlet, free outlet . Power rating (BHP) does not include transmission losses . Performance ratings do not include
the effects of appurtenances (accessories) . The sound ratings shown are loudness values in fan sones at 5 ft (1 .5 m) in a hemispherical free field calculated per AMCA Standard 301 .
Values are for installation type A: free inlet hemispherical sone levels .
*Sones shown apply to the highest cataloged CFM in black type at each fan RPM. For selections at other CFM and static
pressure points, refer to CAPS, the Computer Aided Product Selection Program.
Model Number
Motor
HP
Fan
RPM
Max
BHP *Sones
CFM / Static Pressure in Inches WG
0.00
0.10
0.125
0.15
0.20
0.25
0.30
0.375
0.50
0.625
0.75
1.00
Level 1 Performance
Max RPM L - 696 H - 882
Max Motor Frame Size - 56
TS = RPM x 7.854
SB-1L30-4
1/4
390
0.16
9.5
6453
448
0.25
10.9
7413
5790
475
0.30
11.6
7860
6394
5880
SB-1H30-4
1/4
503
0.17
9.4
5747
4619
4164
577
0.25
11.8
6593
5682
5389
5018
610
0.30
12.6
6970
6129
5860
5559
4743
SB-1L30-3
1/3
491
0.33
12.1
8125
6742
6249
523
0.40
13.0
8654
7427
6970
6503
SB-1H30-3
1/3
631
0.33
13.1
7210
6396
6156
5888
5163
675
0.41
14.1
7713
6950
6763
6515
5939
5160
SB-1L30-5
1/2
564
0.50
14.3
9333
8261
7862
7436
598
0.60
15.5
9895
8898
8583
8185
7366
SB-1H30-5
1/2
725
0.50
15.5
8284
7571
7398
7213
6746
6145
769
0.60
16.9
8787
8112
7949
7785
7376
6876
6248
SB-1L30-7
3/4
645
0.75
17.2 10673 9766
9508
9190
8446
7562
685
0.9
18.7 11335 10496 10253 10009 9332
8622
SB-1H30-7
3/4
827
0.75
19.1
9450
8819
8667
8515
8188
7779
7279
6326
882
0.90
22
10078 9484
9342
9199
8914
8560
8174
7424
SB-1L30-10
1
696
0.94
19.2 11517 10696 10456 10217 9570
8874
Level 2 Performance
Max RPM L - 950 H - 1221
Max Motor Frame Size - 184T
TS = RPM x 7.854
SB-2L30-7
3/4
645
0.75
17.2 10673 9766
9508
9190
8446
7562
685
0.90
18.7 11335 10496 10253 10009 9332
8622
SB-2H30-7
3/4
827
0.75
19.1
9450
8819
8667
8515
8188
7779
7279
6326
882
0.90
22
10078 9484
9342
9199
8914
8560
8174
7424
SB-2L30-10
1
710
1.00
19.7 11748 10949 10714 10479 9872
9192
8383
754
1.20
21
12477 11736 11519 11298 10806 10175 9528
SB-2H30-10
1
917
1.00
23
10478 9906
9768
9631
9357
9049
8680
8012
968
1.20
26
11061 10519 10385 10255 9996
9736
9403
8847
7570
SB-2L30-15
1
1
⁄
2
812
1.50
24
13436 12749 12570 12364 11954 11426 10838 9893
864
1.81
27
14297 13650 13489 13309 12923 12522 11971 11132
SB-2H30-15
1
1
⁄
2
1048
1.50
29
11975 11474 11349 11227 10987 10747
10507 10029 9071
1110
1.80
31
12683 12211 12092 11974 11747 11521
11294 10901 10090 9019
SB-2L30-20
2
895
2.00
29
14810 14186 14030 13868 13496 13123 12633 11830
950
2.41
32
15720 15132 14985 14838 14503 14152 13790 13039 11760
SB-2H30-20
2
1152
2.00
33
13163 12708 12594 12480 12259 12041 11823
11483 10749 9811
1221
2.40
36
13951 13522 13414 13307 13095 12889 12683
12374 11734 10955 9980
Level 3 Performance
Max RPM L - 1100 H - 1432
Max Motor Frame Size - 184T
TS = RPM x 7.854
SB-3L30-20
2
824
1.51
23
13052 12289 12098 11898 11483 11006 10403 9137
905
2.01
26
14335 13640 13467 13293 12924 12540 12102 11263 9366
961
2.40
29
15222 14568 14404 14241 13905 13549 13167 12519 10795
SB-3H30-20
2
1076
1.53
30
11401 11026 10932 10833 10601 10369
10102 9652
8854
7967
6444
1182
2.04
35
12524 12182 12097 12012 11820 11609 11398
11026 10338 9590
8780
5817
1260
2.46
38
13351 13030 12950 12870 12708 12510 12312 12015
11376 10705 9980
8065
SB-3L30-30
3
1036
3.01
35
16410 15803 15651 15500 15196 14874 14544 13993 12801 11093
1100
3.61
41
17423 16852 16709 16566 16281 15991 15680 15201 14241 12775 11254
SB-3H30-30
3
1353
3.01
44
14336 14037 13963 13888 13739 13574 13390 13113
12580 11984 11343 9939
1432
3.53
49
15173 14891 14820 14750 14609 14468 14297 14036
13586 13022 12446 11176
CFM values shown
in black are the most
efficient selections.
Values shown in gray
are not recommended.
