OPERATING TEMPERATURE : Sleeve Bearing:- 10°C to + 70°C BALL BEARING: - 30°C to + 75°C INSULATION RESISTANCE :10 meg Ohms Min. @ 500 VDC (Between Frame and Terminal) DIELECTRIC STRENGTH : 5 mA Max. at 500 VAC 60 Hz for 1 minute (Between Frame and Terminal) WEIGHT : 59g (2.08 oz.) Sofasco D8020 AC Axial Fan - Size 3.15"x3.15"x0.78" (80x80x20mm) Additional Details ------------------------------ Product description: OPERATING TEMPERATURE : Sleeve Bearing:- 10°C to + 70°C BALL BEARING: - 30°C to + 75°C INSULATION RESISTANCE :10 meg Ohms Min. @ 500 VDC (Between Frame and Terminal) DIELECTRIC STRENGTH : 5 mA Max. at 500 VAC 60 Hz for 1 minute (Between Frame and Terminal) WEIGHT : 59g (2.08 oz.)