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Page Header
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 - 424 H - 533
Max Motor Frame Size - 145T
TS = RPM x 10.995
SB-1L42-3
1/3
250
0.24
9.4
11651
275
0.33
10.3 12816 8583
294
0.40
11.1 13701 10026
SB-1H42-3
1/3
314
0.25
9.4
10844
7332
345
0.33
11.1
11915
9126
7744
369
0.40
12.6
12744
10191 9283
SB-1L42-5
1/2
316
0.50
12.0 14726 11363 10252
335
0.60
13.0 15612 12415 11671 10248
SB-1H42-5
1/2
400
0.51
14.7
13814 11527
10841 9931
426
0.61
16.3
14712 12605
11980 11333
SB-1L42-7
3/4
362
0.75
14.5 16870 13939 13189 12422
385
0.92
15.8 17942 15273 14451 13804 11298
SB-1H42-7
3/4
460
0.78
18.5
15887 13987 13420
12834 11361
482
0.90
20
16646 14868 14327
13784 12592 10507
SB-1L42-10
1
398
1.00
16.8 18548 16016 15189 14528 12837
424
1.21
18.8 19759 17478 16705 15953 14777
SB-1H42-10
1
500
1.00
20
17268 15573 15060 14539
13448 11853
533
1.22
21
18408 16849 16388 15899
14900 13752 11887
Level 2 Performance
Max RPM L - 723 H - 907
Max Motor Frame Size - 184T
TS = RPM x 10.995
SB-2L42-10
1
398
1.00
16.8 18548 16016 15189 14528 12837
424
1.21
18.8 19759 17478 16705 15953 14777
SB-2H42-10
1
500
1.00
21
17268 15573 15060 14539
13448 11853
533
1.22
22
18408 16849 16388 15899
14900 13752 11887
SB-2L42-15
1
1
⁄
2
456
1.50
21
21251 19152 18532 17809 16577 15188
484
1.80
23
22555 20599 20064 19420 18117 17086 15458
SB-2H42-15
1
1
⁄
2
577
1.53
24
19927 18529 18109 17678 16773
15831 14681
608
1.81
26
20998 19701 19302 18903 18053
17182 16275 14193
SB-2L42-20
2
502
2.01
24
23394 21521 21006 20440 19128 18098 16824
532
2.40
27
24792 23046 22560 22074 20881 19757 18819 16579
SB-2H42-20
2
630
2.00
28
21758 20527 20142 19757 18951
18122 17251 15564
673
2.41
31
23243 22131 21771 21411 20682 19906
19122 17893
SB-2L42-30
3
575
3.01
32
26796 25212 24762 24312 23339 22193 21216 19836
611
3.65
31
28474 26984 26586 26162 25316 24279 23201 21952 18527
SB-2H42-30
3
721
3.00
36
24900 23864 23572 23236 22564 21861 21137
20017 17604
766
3.61
40
26455 25479 25235 24931 24298 23664 22982
21961 20125 16908
SB-2L42-50
5
681
5.08
36
31736 30400 30066 29712 28952 28192 27265 25814 23967 20093
723
6.00
39
33693 32435 32120 31805 31102 30386 29642 28275 26322 24165
SB-2H42-50
5
853
4.99
48
29459 28583 28364 28145 27603 27035 26466 25556
24003 22312 19563
907
5.95
56
31324 30500 30294 30088 29630 29095 28561 27738 26299
24797 22915
Level 3 Performance
Max RPM L - 762 H - 951
Max Motor Frame Size - 184T
TS = RPM x 10.995
SB-3L42-30
3
527
1.99
18.3 22520 20843 20397 19944 18862 17664 16166
606
3.00
24
25896 24438 24073 23695 22908 21971 20980 19316
640
3.61
26
27349 25968 25623 25278 24537 23737 22813 21321 17720
SB-3H42-30
3
657
1.99
24
19872 18805 18554 18303 17771 17180
16461 15333 13065
755
3.00
30
22836 21890 21671 21453 21016 20567 20053
19187 17554 15662
800
3.60
31
24197 23301 23090 22883 22471 22059 21605 20878
19377 17765 15725
SB-3L42-50
5
714
5.02
30
30512 29274 28964 28655 28028 27360 26666 25424 23169 19687
762
6.01
33
32563 31403 31113 30823 30243 29634 29008 27942 25934 23434
SB-3H42-50
5
893
5.01
37
27010 26207 26007 25816 25447 25078 24709 24107 22961
21608 20168 16141
951
6.00
43
28764 28010 27822 27634 27286 26939 26592 26072 25063
23863 22589 19606
SB-42 Belt Drive
CFM values shown
in black are the most
efficient selections.
Values shown in gray
are not recommended.
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.
