1. 4" 100mm
2. IP44 protection level.
3. Environmental protection material.
4. Easy installation and maintenance.
5. With CE certification.
6. EC motor, high air volume, low power.
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1. The fan casings are manufactured from heavy galvanised sheet steel, low sound level.
2.All models incorporate DC variable frequency motor (permanent magnet synchronous motor) for lower energy consumption, with forward curved centrifugal impeller, comply with the efficiency requirements of the ErP Directive.
3. Free speed control: 1~10V voltage speed control and PWM signal speed control.
4. Stable performance: overcurrent protection, overvoltage protection, over temperature protection, overload protection and shockproof.
5. Designed for excellent airflow: golden 45 degree runner design with Archimedes spiral centrifugal force.
6. Portable disassembly for easier installation and maintenance.
7. All models are IP44, class F insulation.
8. Working temperature range: -20ºC to +60ºC.
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