DC Fans Model 272 Size: 60 mm x 20 mm (2.36" x .79") Part Number Bearings Voltage Voltage Range Current(mA) Input(watts) Noise(dBA) Speed(rpm) Airflow(cfm) Air Pressure (In H20) 272DS-1LP11-000 Ball 12 7.0-13.8 150 1.80 31 4400 18.4 0.23 272DS-2LP11-000 Ball 24 14.0-27.6 70 1.68 31 4400 18.4 0.23 272DH-5LP11-000 Ball 5 4.5-5.5 240 1.20 28 4000 16.6 0.19 272DH-1LP11-000 Ball 12 7.0-13.8 110 1.32 28 4000 16.6 0.19 272DH-2LP11-000 Ball 24 14.0-27.6 50 1.20 28 4000 16.6 0.19 272DM-5LP11-000 Ball 5 4.5-5.5 190 0.95 26 3600 14.8 0.15 272DM-1LP11-000 Ball 12 7.0-13.8 90 1.08 26 3600 14.8 0.15 272DM-2LP11-000 Ball 24 14.0-27.6 40 0.96 26 3600 14.8 0.15 272DL-5LP11-000 Ball 5 4.5-5.5 140 0.70 24 3200 13.1 0.12 272DL-1LP11-000 Ball 12 7.0-13.8 70 0.84 24 3200 13.1 0.12 272DL-2LP11-000 Ball 24 14.0-27.6 30 0.72 24 3200 13.1 0.12 Optional frequency generator or rotation detector versions available. Consult factory. 272DL/DM Performance Curve 272DS/DH Performance Curve 272 DM 272 DL ETRI, Inc., 1503 Rocky River Road North * Monroe, NC 28110 * Tel. 704.289.5423 * Fax 704.283.7170 12 ETRI Model 272 DC FANS Size: 60 mm x 20 mm (2.36" x .79") ELECTRICAL SPECIFICATIONS Item Motor type Input current Input power Max air flow / Back pressure Dielectric strength Electrical connection Speed Specification DC at nominal voltage at nominal voltage All tested in submerged orifice chamber 5 mA leakage @ 500 VAC, 60 hz. UL 1007 awg 24 at nominal voltage Conditions/Tolerances brushless 10% 10% 4% cfm/8% pressure 1 minute between frame and (+) terminal 305 mm (12"), (+) red (-) black 4 MECHANICAL SPECIFICATIONS Item Life expectancy Bearing Airflow direction Housing material Mounting type Impeller Weight Rotation Specification 50,000 hours ball bearing air intake over impeller PBT plastic - 30% glass fiber rib PBT plastic - 20% glass fiber .062 kg (2.18 oz.) clockwise viewed from nameplate Conditions/Tolerances continuous operation @ 25C, 65% relative humidity top and bottom UL 94V-0 UL 94V-0 ENVIRONMENTAL SPECIFICATIONS Item Operating temperature Storage temperature Drop test Shock test Vibration test Acoustical Specification - 10 to + 70C - 40 to + 75C one drop ea. 3 faces 50g peak acceleration x,y,z direction, 1 hour anechoic chamber at free air Conditions/Tolerances 30 cm height onto 10 mm thick wooden board duration - 11 ms frequency - 10-55-10 Hz, amplitude - 0.75 mm microphone - 1 meter away PROTECTION Item Locked rotor Polarity protected Insulation class Auto restart Agency approvals Warranty Specification impedance protected will withstand pos and neg lead reversal UL class A automatic restart by timer UL, CSA, VDE, CE Conditions/Tolerances 72 hours @ rated voltage locked rotor condition 3 years PANEL CUT-OUT 1503, Rocky River Road North Monroe, NC 28110 USA Tel: 704.289.5423 Fax: 704.283.7170 Website: http://www.etrinet.com 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 9-11, rue de Moulin des Bruyeres 92400 Courbevoie FRANCE Tel: (33-1) 49 04 92 00 Fax: (33-1) 47 89 09 38 Email: sales@etrinet.com Specifications subject to change without notice. 13