metal blades AC Axial fan

Motor Structure: External rotor shaded Pole motor, with impedance protection. Motor protection: Thermal protection automatic switch Blades: Pressed from metal armor plate, blades are welded to motor rotor directly and surface is oven baked printed. Frame material: Die-casting Aluminum Alloy with anti-corrosion treatment. Bearing Type: Double NMK ball bearing Insulation Isolation Grade: F Protection Grade: IP 55Dielectric Withstand Voltage: AC2,000V, at 0.5mA, 50/60HzAllowable Ambient Temperature: -25 to +75 Centigrade degree (ball bearing) (Under unconcretionary)Noise Lever: 48/52dB at normal operation (Varies to other specifications)Life: 45,000hours Connection way: UL3266 wire connection Unit weight:1.1kg Contact with us for more details of specification.