Duct fan EZR 20/2 B

high-performancereversibleaxial

EZR 20/2 B - short description Axial duct fan, DN 200, alternating current EZR 20/2 B - Product description Features Duct sleeve made of galvanised sheet steel, with flanges on both sides. 8-blade impellers made of glass-fibre filled polyamide. Dynamically balanced at two levels, in accordance with performance level 6.3, DIN ISO 1940, Part 1. Flange holes in accordance with DIN EN 12220:1998. DZR 56/6 B and DZR 56/4 B: Flange holes in accordance with DIN EN 12220:1998. To avoid transmission of vibrations to the duct system: Use flexible couplings, feet and vibration dampers. High degree of protection IP 55. Exception EZR/DZR... D IP 54. Can be fitted in any position. Motor Asynchronous motor, speed controllable. Exception: Type DZR 40/2 B. Not suitable for ventilating steam-saturated air. Air flow direction is indicated on the unit with direction of rotation and air flow direction arrows. Reversing mode: The volumetric flow is reduced by approx. 35 % with abnormal air flow direction. AC motor EZR model series. Rated voltage 230 V, 50 Hz. Capacitor motors with operating capacitor ready for use in terminal box. Thermal overload protection as a standard feature. Potential-free terminal connections, which must be connected to e.g. an MVE 10 full on motor protection switch (not suitable for EZR 25/4 D, EZR 30/6 B and EZR 35/6 B) or the control circuit of a contactor. Electrical connection Terminal box with cable sleeves fitted on the outside. Safety instructions The fan may be operated only if the protection against accidental contact with the impeller is guaranteed to be in accordance with DIN EN 13857.