254 x 89mm (10.0” x 3.5”) OA254 Series 4.6±0.2 DIA. (0.181") HOLE THRU BOTH WALLS (16 PLACES) 3.68 (0.145") 3 (0.12") 8 (0.315") 7.94 (0.312") +1.0-0.5 254 GRD 0.7 (0.03") (ÿ10.00") N 45 Degrees TIO ROT A AIR FLOW 89±0.5 246 (9.685") BOLT HOLE CIRCLE (3.50") M4 GROUND HOLE Frame Diecast Aluminum Impeller PBT, UL94V-O plastic Connection 2x Lead Wires or Terminals Motor Capacitor drive, thermally protected Bearing System Dual ball Insulation Resistance >100M ohm between leadwire and frame (500VDC) Dielectric Strength 1 min at 1500 VAC, 50/60Hz Operating Temperature Ball Bearing -20C ~ +80C Life Expectancy Ball Bearing 60,000 hours (L10 at 40C) Approvals UL/cUL: E170149 TUV: R50133700 CE m2 Part Number OA254AP-11-1 * OA254AP-22-1 * Nominal Voltage 115VAC 230VAC Rated Power (50/60 Hz) 31/35 W - (0.30 / 0.29 A) 31/35 W - (0.30 / 0.29 A) Voltage Range Rated Speed (50/60 Hz) Airflow - CFM (50/60 Hz) Noise Level - dB (50/60 Hz) Max. Static Pressure (50/60 Hz) 80 ~ 130VAC 1400 / 1650 460 / 547 160 ~ 260VAC 1400 / 1650 460 / 547 52 / 55 52 / 55 0.32 / 0.39” H2O 0.32 / 0.39” H2O * Indicate “TB” for terminal type or “WB” for Wire leads (300mm) Knight Electronics, Inc. 10557 Metric Drive Dallas, Texas 75243 214-340-0265 Orion Fans RoHS Compliant 22 Information and data is subject to change without prior notification.