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LB/LBP 30
Belt Drive
LB Dimensions
50
(1270)
1
⁄
3
4
40
(44)
(1016)
LBP Dimensions
46
(1168)
40
1
3
⁄
4
(1016)
(44)
Model
Motor
Number
HP
LB/LBP-30-3
1/3
LB/LBP-30-5
1/2
LB/LBP-30-7
3/4
LB/LBP-30-10
1
LB/LBP-30-15
1
1
⁄
2
LB/LBP-30-20
2
LB/LBP-30-30
3
LB/LBP-30-50
5
Performance certified is for installation type A: Free inlet, Free outlet. Power rating (Bhp) does not include transmission losses. Performance ratings include the effects of a
birdscreen in the airstream. The sound ratings shown are loudness values in fan sones at 5 feet (1.5 m) in a hemispherical free field calculated per AMCA Standard 301. Values
shown are for installation type A: Free inlet hemispherical sones.
18
63
29
1
⁄
(1600)
2
(749)
8
1
⁄
2
40
(216)
(1016)
58
23
(1473)
(584)
40
(1016)
Fan
RPM
0
0.25
CFM
3910
230
BHP
0.076
Sones
8.0
CFM
6221
4729
366
BHP
0.31
0.37
Sones
8.7
5.9
CFM
6697
5354
394
BHP
0.38
0.45
Sones
9.0
6.5
CFM
7156
5939
421
BHP
0.47
0.54
Sones
9.7
7.4
CFM
8210
7196
483
BHP
0.7
0.8
Sones
12.0
10.7
CFM
8992
8079
529
BHP
0.92
1.04
Sones
13.8
12.9
CFM
9638
8797
567
BHP
1.14
1.27
Sones
15.3
14.2
CFM
10284
9507
605
BHP
1.38
1.53
Sones
16.8
15.7
CFM
11338
10639
667
BHP
1.85
2.02
Sones
19.8
18.6
CFM
11950
11287
703
BHP
2.17
2.34
Sones
22
20
CFM
14194
13635
835
BHP
3.63
3.84
Sones
27
26
2.0
400
1.5
26
5
⁄
8
300
(676)
1.0
200
0.5
100
0
0.0
0
0
26
1
⁄
Hood Thickness
2
(673)
Cover Thickness
Louver Thickness
Curb Cap Thickness
Damper Size Square
Roof Opening Square
Weight*
All dimensions are in inches (millimeters). Weight in pounds
(kilograms). *Weight shown is the largest cataloged
Open Drip Proof motor. See page 8 for severe duty LBP
dimensions.
CFM / Static Pressure in Inches wg
0.375
0.5
0.625
0.75
MAX. BHP AT A GIVEN RPM - (rpm/512)
MAXIMUM FRPM = 835
TIP SPEED = rpm x 7.985
MAX. MOTOR FRAME SIZE = 184T
4290
0.44
6.0
5076
0.55
6.7
6567
5777
0.83
0.83
9.7
8.8
7559
6946
6162
1.07
1.1
1.09
12.1
11.4
10.3
8334
7786
7174
6410
1.31
1.34
1.36
1.33
13.6
13.0
12.3
11.2
9073
8605
8068
7434
1.57
1.61
1.64
1.64
15.2
14.6
14.1
13.3
10257
9863
9419
8933
2.07
2.12
2.16
2.19
17.9
17.5
17.1
16.6
10935
10562
10184
9722
2.41
2.46
2.51
2.54
19.5
19.1
18.7
18.3
13356
13062
12747
12432
3.95
4.03
4.09
4.14
25
25
24
24
RPM
HP
Density 0.075 lb/ft
2
4
6
8
10
12
cfm X 1000
5
10
15
20
3
m
/hr X 1000
LB-30
LBP-30
22 ga
-
-
0.064
(0.029)
-
0.081
(0.036)
0.064
0.064
(0.029)
(0.029)
30
30
(762)
(762)
32
1
⁄
32
1
⁄
(826)
2
2
Galvanized,
Aluminum,
249
318
(113)
(144)
1
1.25
1.5
1.75
3
7737
2.17
14.9
8701
7032
2.57
2.41
17.0
14.2
11728
10951
9965
8478
4.24
4.33
4.29
4.06
23
22
21
18.2
3
14
16
25
(826)
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