1. Compact structure
2. Professional design
3. Fine process control
4. Easy installation
5. Efficient and low noise
6. Long service life

　Axial fan with external rotor motor YWF300 　　—The diameter of the fan blade: 300 mm　　—Material: Guard Grille: steel, phosphated and coated in black plastic　　Wall ring: sheet steel, re-galvanised and coated in black plastic　　blades: sheet steel　　Rotor: coated in black plastic　　—Number of blades: 5　　—Direction of rotation: direction of air flow “S” counter-clockwise, direction of air flow “B” clockwise seen on rotor　　—Type of protection: IP54 or IP44 rating for protection against dust and water　　—Approvals: UL, CE, CCC approval　　—Insulation class: B or F　　—Mode of operation: Continuous operation (S1)　　—Bearings: Maintenance- free ball bearings　　—Motor protection: Design with thermal protection device　　 —Cable exit: lateral　　—Protection class: IFor more information about the installation ways, please refer to .

1. performance parameters

2. shape and the size of installation

3.air volume and static pressure curve