250mm Centrifugal Fan EC 110V 230V Plastic Telecom Backward Centrifugal Blower Fan High Pressure EC Centrifugal Fan

Products Description Types 133-500mm EC 110V/230V plastic telecom backward centrifugal blower fan high pressure EC centrifugal fan Mainly Applications AIR PURIFIER / Server Cooling & Ventilation / Grow Tent /Ventilation SYSTEM/ Equipments Cooling /Refrigerator ,etc;ventilation fan cooling;ventilation exhaust fans. Voltage Ranges 110V/230V Frequency 50/60 Hz Diamter 133-500mm ( impeller diameters ) Motor Types External Rotor Motor Max.ambient Temp -25℃～ 60℃ ;Applicable altitude range：＜1000m Certificating CE ,RoHS, ISO19001,ISO 14001 Protection Level IP54 Electronic Protection Current limiting protection, Over-temperature protection,Over-current protection,Locked-rotor protection,Soft start 1.Could we ask for samples and catalogs? Yes, our catalogs are available on the website: www.demma.com.cn, and we can provide free of charge samples for testing before mass order.2.ls the price negotiable? Yes, it is negotiable, but it is subject to your order quantity3.How should I pay for the order? Pay by trade assurace through alibaba, pay by Paypal, WesternUnion, TT are acceptable.4.Could we make our own brand ? Yes, we are flexible in OEM labeling and we can give design support.5.How long is the production time? Usually, it takes about 2-3 weeks upon receipt of order advance payment.