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281DL/DM Performance Curve 281DH/DS Performance Curve
ETRI, Inc., 1503 Rocky River Road North • Monroe, NC 28110 • Tel. 704.289.5423 • Fax 704.283.7170
Model 281
DC Fans
Size: 60 mm x 25 mm (2.36” x 1”)
Part Number Bearings Voltage Voltage Range Current(mA) Input(watts) Noise(dBA) Speed(rpm) Airflow(cfm) Air Pressure (In H20)
281DS-1LP11-000 Ball 12 7.0-13.8 180 2.16 33 5000 23 0.27
281DS-2LP11-000 Ball 24 14.0-27.6 90 2.16 33 5000 23 0.27
281DH-5LP11-000 Ball 5 4.5-5.5 310 1.55 28 4250 19.4 0.19
281DH-1LP11-000 Ball 12 7.0-13.8 120 1.44 28 4250 19.4 0.19
281DH-2LP11-000 Ball 24 14.0-27.6 80 1.92 28 4250 19.4 0.19
281DM-5LP11-000 Ball 5 4.5-5.5 220 1.10 24.5 3600 16.2 0.14
281DM-1LP11-000 Ball 12 7.0-13.8 80 0.96 24.5 3600 16.2 0.14
281DM-2LP11-000 Ball 24 14.0-27.6 60 1.44 24.5 3600 16.2 0.14
281DL-5LP11-000 Ball 5 4.5-5.5 150 0.75 22.5 3100 14.1 0.10
281DL-1LP11-000 Ball 12 7.0-13.8 60 0.72 22.5 3100 14.1 0.10
281DL-2LP11-000 Ball 24 14.0-27.6 50 1.20 22.5 3100 14.1 0.10
Optional frequency generator or rotation detector versions available. Consult factory.
9-11, rue de Moulin des Bruyères
92400 Courbevoie FRANCE
Tel: (33-1) 49 04 92 00
Fax: (33-1) 47 89 09 38
1503, Rocky River Road North
Monroe, NC 28110 USA
Tel: 704.289.5423
Fax: 704.283.7170
W ebsite: http://www.etrinet.com Email: sales@etrinet.com
PANEL CUT-OUT
ETRI Model 281 DC FANS
Size: 60 mm x 25 mm (2.36” x 1”)
Specifications subject to change without notice.
ETRI fans are available with a wide range
of accessories, from finger guards to filter
assemblies to special termination. Request our accessories brochure or call
your nearest distributor for complete details.
ACCESSORIES
ELECTRICAL SPECIFICATIONS
Item Specification Conditions/Tolerances
Motor type DC brushless
Input current at nominal voltage ±10%
Input power at nominal voltage ±10%
Max air flow / Back pressure All tested in submerged orifice chamber ±4% cfm/±8% pressure
Dielectric strength 5 mA leakage @ 500 VAC, 60 hz. 1 minute between frame and (+) terminal
Electrical connection UL 1007 awg 24 305 mm (12”), (+) red (-) black
Speed at nominal voltage ±4%
Item Specification Conditions/Tolerances
Life expectancy 50,000 hours continuous operation @ 25°C, 65% relative humidity
Bearing ball bearing top and bottom
Airflow direction air intake over impeller
Housing material PBT plastic - 30% glass fiber UL 94V-0
Mounting type flange
Impeller PBT plastic - 20% glass fiber UL 94V-0
Weight .077 kg (2.72 oz.)
Rotation clockwise viewed from nameplate
Item Specification Conditions/Tolerances
Operating temperature - 10 o + 70°C
Storage temperature - 40 to + 75°C
Drop test one drop ea. 3 faces 30 cm height onto 10 mm thick wooden board
Shock test 50 g peak acceleration duration - 11 ms
Vibration test x,y,z direction, 1 hour frequency - 10-55-10 Hz, amplitude - 0.75 mm
Acoustical anechoic chamber at free air microphone - 1 meter away
Item Specification Conditions/Tolerances
Locked rotor impedance protected 72 hours @ rated voltage
Polarity protected will withstand pos and neg lead reversal
Insulation class UL class A
Auto restart automatic restart by timer locked rotor condition
Agency approvals UL, CSA, VDE, CE
Warranty 3 years
PROTECTION
ENVIRONMENTAL SPECIFICATIONS
MECHANICAL SPECIFICATIONS
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