Factory 175*68.5mm Waterproof IP55 Ec-AC Backward Curved Centrifugal Fan

Factory 175*68.5mm Waterproof IP55 Ec-AC Backward Curved Centrifugal Fan. IP55 Waterproof Rating: High protection level IP55 ensures reliable operation in humid or wet environments. 5-Year Warranty: Comprehensive five-year warranty coverage for all EC fan products. 0-10V/PWM Speed Control: Precise speed regulation via 0-10VDC or PWM signals with tach output. Multiple Certifications: Certified by CE, RoHS, CCC, and UL for global market compliance. Fast Sample Delivery: Sample production completed within 3 days for quick testing. Customization Options: Supports full customization, minor customization, and design-based options. High Air Flow Performance: Delivers 411.95 CFM (700 m3/H) with 3.2 inH2O static pressure.