6
Performance Data
MODEL NUMBER RPM HP
MAX
BHP
SONES @
0.125
CFM / STATIC PRESSURE IN INCHES W.G.
0.000 0.125 0.250 0.375
ESRMD-24-420-B3 1160 1/3 0.37 20 4733 4023 2810
ESRMD-24-430-B5 1160 1/2 0.60 22 5525 4589 3109
ESRMD-24-415-A7 1750 3/4 0.89 33 6096 5700 5244 4685
ESRMD-24-420-A10 1750 1 1.26 42 7140 6711 6213 5659
ESRMD-24-622-A15 1750 11⁄2 1.77 43 8005 7747 7327 6921
ESRMD-30-427-C5 870 1/2 0.55 18.0 7595 5735 3303
ESRMD-30-418-B7 1160 3/4 0.85 29 8995 7945 6448 4393
ESRMD-30-425-B10 1160 1 1.15 30 9965 8698 7195 5192
ESRMD-30-625-B15 1160 11⁄2 1.59 35 11325 10326 9026 6757
ESRMD-30-415-A20 1750 2 2.30 59 12005 11398 10695 9985
ESRMD-30-420-A30 1750 3 3.23 61 14054 13328 12576 11768
ESRMD-30-625-A50 1750 5 5.46 73 17085 16463 15782 15046
ESRMD-36-410-C5 870 1/2 0.55 23 7899 5850 3156
ESRMD-36-614-C7 870 3/4 0.88 25 10062 8676 6800
ESRMD-36-620-C10 870 1 1.37 26 11554 10164 7440
ESRMD-36-626-C15 870 11⁄2 1.73 28 13424 11956 9487
ESRMD-36-615-B20 1160 2 2.39 45 13966 12858 11454 9974
ESRMD-36-623-B30 1160 3 3.66 46 17261 15948 14605 13369
ESRMD-42-413-C10 870 1 1.14 26 13175 11069 7950 4200
ESRMD-42-615-C15 870 11⁄2 1.73 27 16063 14358 12205 9001
ESRMD-42-620-C20 870 2 2.29 33 18275 16513 14260 11465
ESRMD-42-629-C30 870 3 3.38 35 21264 19373 17171 13941
ESRMD-42-621-B50 1160 5 5.63 55 24776 23430 22078 20377
ESRMD-48-618-F15 680 11⁄2 1.71 26 19446 16442 11939
ESRMD-48-616-F20 680 2 2.20 28 20886 18974 16481
ESRMD-48-623-F30 680 3 3.56 32 24368 22235 17320 14516
ESRMD-48-612-C20 870 2 2.31 38 20218 17864 15156 11386
ESRMD-48-617-C30 870 3 3.29 41 23020 20817 17930 14322
ESRMD-48-619-C50 870 5 5.66 45 28511 26885 25194 23287
ESRMD-48-618-B75 1160 71⁄2 8.52 66 32435 29892 29139 27139
ESRMD-48-620-B100 1160 10 11.85 74 36151 35143 34085 32966
ESRMD-54-615-F20 680 2 2.34 35 23198 19758 13768
ESRMD-54-620-F30 680 3 3.49 37 25875 22129 17205 11627
ESRMD-54-429-F50 680 5 5.70 44 32002 28710 24070 19075
ESRMD-54-614-C50 870 5 5.75 58 32687 30673 28684 26153
ESRMD-54-422-C75 870 71⁄2 8.39 60 37995 35786 33443 30137
ESRMD-54-624-C100 870 10 11.92 63 42762 40340 38331 35529
Shading indicates sound levels in excess of 50 sones (85 dBA) and are subject to OSHA regulations.
This catalog shows fan performance ratings with BHP's as much as 20% over the motor's nameplate horsepower. Motor life
is dependent on the operating temperature of the motor. Motors provided are sufficiently cooled to allow operation up to 20%
above their horsepower ratings. This does not reduce motor life or performance and therefore is economically desirable.
The model numbering system is designed to completely identify the fan. The correct code letters and numbers must be specified
to designate function, size, no. of blades, pitch, RPM & HP.
Model Number Code
Propeller Diameter
ESRMDF - 24 - 624 - B3
Model
Filter
(Optional)
Motor HP
4 = 1/4 7 = 3/4 30 = 3 100 = 10
3 = 1/3 10 = 1 50 = 5
5 = 1/2 20 = 2 75 = 7
1
⁄2
Number of Blades
Motor RPM
A = 1725 C = 870
B = 1140 F = 680
Propeller
Pitch