ETXSSERIES FAN (centrifugal shutter ventilator) Model Blade DiameterBlade NORPMAir VolumePowerOuter Size(mm)VoltageETXS-10001000 mm656035000 m³/h0.75 KW1100×1100×400380 VETXS-12501250 mm643942000 m³/h1.1 KW1380×1380×400380VETXS-14001400 mm642055800 m³/h1.5 KW1536×1536×400380V Product features Shutter: with a centrifugal system which can ensure it open and close automatically, and dust/water proof. Motor: high-effiency, energy-saving. Protection Grade: IP55. Insulation Class: F. Belt: the automatic tensioner instrument is adopted to prevent it loosingor dropping off. motor: the high efficient and energy saving motor passed the national 3C certificate. Contact: Ben Scofield