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Performance certified is for installation type B: Free inlet, Ducted 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 1.5 m (5 feet) in a hemispherical free field calculated per AMCA International Standard 301. Values shown are
for installation type B: free inlet hemispherical sone levels.
42
BSQ 300HP - Belt Drive
38
(965)
46
(1168)
41
7
⁄8
(1064)
46
(1168)
1
1
⁄2 (38)
*18
(457)
*22
(559)
*34
(864)
Damper size = 42 x 42 (1067 x 1067)
Unit weight** = 537 (244)
Housing thickness = 16 ga
Model
Number
Motor
HP
Fan
RPM
CFM / Static Pressure in Inches wg
0.500 0.750 1.000 1.250 1.500 1.750 2.000 2.500 3.000 3.500
300HP
300HP-
15
1
1
⁄2
620
CFM 5642 4823
BHP 1.06 1.10
Sones 14.4 14.0
694
CFM 6610 6001 5168 3452
BHP 1.44 1.51 1.53 1.36
Sones 16.5 16.1 15.8 16.3
300HP-
20
2
725
CFM 6998 6436 5729 4747
BHP 1.63 1.71 1.75 1.71
Sones 17.5 17.2 16.8 16.6
777
CFM 7641 7151 6556 5799 4740
BHP 1.98 2.07 2.13 2.15 2.07
Sones 19.3 19.1 18.5 18.4 18.2
300HP-
30
3
829
CFM 8265 7830 7317 6701 5940 4535
BHP 2.36 2.47 2.56 2.61 2.61 2.40
Sones 21 21 21 20 20 20
934
CFM 9492 9142 8746 8281 7752 7130 6393
BHP 3.29 3.44 3.56 3.65 3.72 3.74 3.71
Sones 26 26 26 25 25 25 24
300HP-
50
5
987
CFM 10105 9788 9417 9012 8564 8027 7411 5200
BHP 3.85 4.02 4.14 4.25 4.34 4.40 4.41 3.99
Sones 27 27 27 26 26 25 25 25
1039
CFM 10702 10401 10067 9711 9292 8847 8323 7028
BHP 4.45 4.63 4.78 4.90 5.00 5.09 5.14 5.09
Sones 28 27 27 27 26 26 26 25
1091
CFM 11297 11010 10710 10371 10006 9601 9149 8055 6257
BHP 5.11 5.30 5.48 5.61 5.73 5.83 5.91 5.95 5.57
Sones 29 28 28 28 27 27 26 26 26
300HP-
75
7
1
⁄2
1144
CFM 11900 11626 11353 11036 10713 10336 9950 9020 7832
BHP 5.86 6.05 6.25 6.40 6.54 6.65 6.76 6.88 6.82
Sones 29 29 29 29 29 28 27 27 26
1196
CFM 12489 12228 11966 11681 11372 11047 10677 9853 8840 7545
BHP 6.65 6.86 7.06 7.24 7.39 7.53 7.64 7.81 7.85 7.63
Sones 30 30 30 30 30 29 28 28 28 27
MAX Bhp AT A GIVEN RPM = (rpm/602)
3
MAXIMUM RPM = 1196
TIP SPEED (ft/min) = rpm x 7.984
MAX NEMA MOTOR FRAME SIZE = 215T
OUTLET VELOCITY (ft/min) = 0.0826 x cfm
0 2 4 6 8 10 12 14 16 18 20 22
0
100
200
300
400
500
600
700
800
900
1000
1100
D
O
N
O
T
S
E
L
E
C
T
T
O
T
H
E
L
E
F
T
O
F
T
H
I
S
S
Y
S
T
E
M
C
U
R
V
E
0 2 4 6 8 10 12 14
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
Static Pressure in. wg
cfm X 1000
m
3
/hr X 1000
Static Pressure Pa
1 1/2 hp
2 hp
3 hp
5 hp
7 1/2 hp
1196
RPM
HP
Density 0.075 lb/ft
3
1040
880
770
560
400
Dimensions shown in inches (millimeters) and weight is shown in pounds (kilograms).
*Motor cover is optional. Size may be greater depending on motor.
**Weight shown is largest cataloged Open Drip Proof motor.