1)Size: 253x89mm 2)Voltage:115--240v 50/60Hz 3)Bearing: sleeve or ball availible 4)Aluminium frame 5)UL TUV CE CSA Specifications:Frame size(mm)Φ254x89mmBearing typeball bearing/sleeveRated voltage115V-240V 50/60HzRated speed2100/1900RPMMax air flow650/585CFMMax pressure0.35/0.311inch-H2OMax noise62/60dBSafety approvalsCE ROHSDielectric Strength 5mA max at 1500VAC for 1 min between lead wire and ...