AC Fans

AC Fan Quick Reference Table

mm

inches

Series

Description

CFM

inH2O

dBA
254 x 89 10.0 x 3.5 RA2589-C High Air Flow 423-850 0.35-0.83 52-88
222 x 60 8.7 x 2.4 RA2260-C High Air Flow 430-485 0.71-0.94 59-62
172 x 51 6.8 x 2.0 RA1725-C High Air Flow 250-293 0.63-0.79 56-61
172 x 51 6.8 x 2.0 RA1725 Standard 133-187 0.15-0.55 45-55
172 x 150 x 51 6.8 x 5.9 x 2.0 RA1751-C High Air Flow 250-293 0.63-0.79 56-61
172 x 150 x 51 6.8 x 5.9 x 2.0 PM1751-7 Standard 186-240 0.22-0.37 48-53
172 x 150 x 51 6.8 x 5.9 x 2.0 PM1751-5 Low Air Flow 161-228 0.32-0.53 40-49
172 x 150 x 38 6.8 x 5.9 x 1.5 RA1738-C High Air Flow 166-198 0.66-0.77 57-61
162 x 150 x 55 6.8 x 5.9 x 2.2 RA1555-C High Air Flow 250-293 0.63-0.79 56-61
162 x 150 x 55 6.8 x 5.9 x 2.2 RA1555 Standard 123-181 0.14-0.52 45-56
162 x 150 x 38 6.8 x 5.9 x 1.5 RA1538-C High Air Flow 166-198 0.66-0.77 57-61
127 x 127 x 38 5.0 x 5.0 x 1.5 RA1278-C High Air Flow 117-151 0.28-0.51 42-49
127 x 127 x 38 5.0 x 5.0 x 1.5 RA1278 Standard 65-130 0.10-0.27 30-46
127 x 127 x 38 5.0 x 5.0 x 1.5 RA1278(P5B) Plastic Frame 65-121 0.10-0.27 30-46
120 x 120 x 38 4.7 x 4.7 x 1.5 RA1238-C High Air Flow 104-130 0.26-0.49 39-47
120 x 120 x 38 4.7 x 4.7 x 1.5 RA1238-C Reverse/High Air Flow 93-126 0.14/0.42 43-49
120 x 120 x 38 4.7 x 4.7 x 1.5 RA1238 Reverse/Standard 70-113 0.08/0.26 35-50
120 x 120 x 38 4.7 x 4.7 x 1.5 PM1238-7 Standard 85-108 0.17-0.28 38-45
120 x 120 x 38 4.7 x 4.7 x 1.5 PM1238-5 Low Air Flow 72-98 0.11-0.30 36-45
120 x 120 x 38 4.7 x 4.7 x 1.5 RA1238(5BM) Metal Blade 65-96 0.11-0.28 37-45
120 x 120 x 38 4.7 x 4.7 x 1.5 RA1238(P5B) Plastic Frame 61-94 0.11-0.35 36-44
120 x 120 x 25 4.7 x 4.7 x 1.0 RA1225-C High Air Flow 76-103 0.18-0.35 38-46
120 x 120 x 25 4.7 x 4.7 x 1.0 PM1225-7 Standard 51-67 0.10-0.17 31-38
92 x 92 x 38 3.6 x 3.6 x 1.5 RA9238-C High Air Flow 34-56 0.13-0.30 26-36
92 x 92 x 38 3.6 x 3.6 x 1.5 RA9238 Standard 38-50 0.15-0.24 26-35
92 x 92 x 25 3.6 x 3.6 x 1.0 RA9225-C High Air Flow 39-50 0.13-0.24 27-34
92 x 92 x 25 3.6 x 3.6 x 1.0 PM9225-7 Standard 24-29 0.10-0.10 20-24
80 x 80 x 38 3.2 x 3.2 x 1.5 RA8038-C High Air Flow 22-32 0.12-0.24 24-31
80 x 80 x 38 3.2 x 3.2 x 1.5 PM8038-7 Standard 17-26 0.06-0.16 19-30
80 x 80 x 25 3.2 x 3.2 x 1.0 RA8025-C High Air Flow 21-30 0.10-0.21 23-31
80 x 80 x 25 3.2 x 3.2 x 1.0 PM8025-7 Standard 12-19 0.05-0.11 20-27

Standard Specifications

OPERATION VOLTAGE: ±10% of rated voltage
STORAGE TEMPERATURE: -40°C to +80°C @65% relative humidity
INSULATION RESISTANCE: 100 Mohm Min @DC 500V
DIELECTRIC STRENGTH: AC 1500V for 3 sec (<0.5mA allowable between lead and frame).
NOISE: Measured at rated voltage at 1 meter distance in an anechoic chamber with a background noise of 16dBA max.
VIBRATION: JIS C0040 amplitude 1.5mm frequency 10-55Hz, 1 hr per axis: X, Z, Y.
SHOCK: JIS C0041 acceleration 100G, duration 6ms per axis: X, Z, Y.
LIFE: Life expectancy is 50,000 hours for ball bearings or 30,000 hours for sleeve bearings @°25C, 65% ±20% relative humidity continuous operation.
SAFETY: Designed to meet UL, cUL, TUV, and CE certification. RoHS compliant.
INSULATION: Class B

Static Pressure Conversion Table

Pa (=N/m2)

mmH2O = mmAq

inH2O

Kgf/cm2

bar
1 1.0197 x 10-1 4.017 x 10-3 1.0197 x 10-5 1 x 10-5
9.70665 1 3.939 x 10-2 1 x 10-4 9.80665 x 10-5
1.3332 x 102 1.3619 x 10 1 1.3595 x 10-3 1.3332 x 10-3
9.80665 x 104 104 3.937 x 102 1 9.80665 x 10-1
1 x 105 1.0197 x 104 4.018 x 102 1.01972 1

Air Flow Conversion Table

m3/min

CFM

L/s

L/min
1 3.531 x 10 1.666 x 10 1 x 103
2.831 x 10-2 1 4.720 x 10-1 2.831 x 10
6 x 10-2 2.118 1 6 x 10
1 x 10-3 3.531 x 10-2 1.666 x 102 1

Fahrenheit/Celsius/Kelvin Conversion Table

Fahrenheit to Celsius

Celsius to Fahrenheit

Celsius to Kelvin
°C = (5/9) * (°F-32) °F = (°C * (9/5)) +32 K = °C + 273.15

Value-Added Features and Benefits

Various products include additional features that provide value-added benefits to our customers that are not commonly found in competitive products:
  • unique multi-blade designs increase airflow
  • high quality bearings ensure quiet operation and longer life
  • impedance protection ensures safe operation at high temperatures
  • thermal protection reduces fan overheating at high temperatures
  • built-in locked rotor protection increases fan life
  • tachometer output monitors fan speed and reduces fan failure
  • rotation detection determines fan operation and reduces failure
  • weather resistant protection with proprietary conformal coating technology meets industry dust proof and water proof IP requirements.
 AC fans