SDA350 4 1EC Raptor Case Mounted Axial Fan Single Phase EC 350mm

The Elta SDA350/4-1EC is a 350mm Raptor SDA short cased axial fan for fitting in 350mm ductwork. It moves up to 4316 m³/h in free air, 3614 m³/h at 100 Pa and still 2758 m³/h at 200 Pa, the highest pressure in Elta's published table for this model.A single phase EC external rotor motor (200-277V 50/60Hz) with an integrated variable speed drive runs at up to 1952 rpm and draws 424 W at best efficiency (1.98 A peak), with internal electronic overload protection. Speed is set by a 0-10V signal or Elta's 149-POT-10-MI potentiometer. The Ziehl-Abegg FE2owlet aerofoil impeller has serrated trailing edges and winglets for lower noise, the mild steel case is powder coated in RAL 7045 with an IP55 terminal box, the motor is IP44, and Elta give a 12 month warranty. 1 Phase EC Motor Up to 4316 m³/h Speed Controllable What it is best used forDucted extract or supply on 350mm duct for classrooms, small retail units, squash courts and workshops. At 50 Pa it moves 3974 m³/h, roughly 6 air changes an hour in a space of about 660 m³.It still gives 2758 m³/h at 200 Pa, but Elta publish no figures for it beyond that, so very high resistance systems need a mixed flow or centrifugal fan. It is not suitable for corrosive or explosive atmospheres, and the air must stay between -20°C and +70°C.Why choose this over alternativesThere are 2 Raptor SDA models in the 350mm case, and the choice comes down to supply, noise and control. This EC version gives fully variable speed from a 0-10V signal with no separate controller needed for BMS control, and at 38.6% overall efficiency it is more efficient than the AC equivalent (24.0% for the SDA350/4-1AC). In the same size there is also the Elta SDA350/4-1AC (4 pole single phase, 2570 m³/h, 45 dB(A)).If you need more air, the Elta SDA400/4-1EC moves 5076 m³/h in free air. If the fan will sit in a wall or panel rather than in a duct, the Elta SPA350/4-1EC plate fan uses the same Raptor impeller and motor family on a square mounting plate.Installation notes Fit it in the duct run at any angle, securely supported, with access for maintenance. The case is 180mm long with 8 holes of 10mm on a 395mm PCD at each end for Elta matching flanges 061A-0350-C, and mounting feet 060A-0350-C are available. Wire to Elta diagram 152-00044 through the fitted terminal box (21mm cable entry). For variable speed connect a 0-10V signal or the 149-POT-10-MI potentiometer to the 10V, E1 and GND terminals. Disconnect the fan before any insulation resistance testing. Elta warn this can damage the EC electronics and is not covered by warranty. Fit a local means of isolation, and site the discharge so exhaust cannot be drawn back into a room through the open flue of a gas or fuel burning appliance. At first start check rotation, airflow direction and that the running current is within the rating plate. Inspect and clean the blades and guards at least every 12 months. You'll also need Elta EC electronic controller 149-POT-10-MI (the potentiometer controller Elta list for every EC Raptor SDA) Elta ancillary pack APK350SCD/001 (flexible connections, matching flanges, anti-vibration mounts and mounting feet) available to order, ask us Browse more cased axial fans, axial fans or Elta fans, or call us for help choosing the right fan.Specifications Model SDA350/4-1EC Type Cased axial fan, short case Diameter 350mm Max airflow 4316 m³/h Static pressure 200 Pa Motor Single phase EC, 200-277V 50/60Hz, 1952 rpm Power 424 W (1.98 A peak) Noise 57 dB(A) inlet, 58 dB(A) outlet at 3m IP rating IP44 motor, IP55 terminal box Warranty 1 Year Manufacturer Airflow at 50 Pa 3974 m³/h Airflow at 100 Pa 3614 m³/h Airflow at 150 Pa 3222 m³/h Airflow at 5V control signal 1998 m³/h, 41 dB(A) at 3m Speed control Integrated variable speed drive, 0-10V or potentiometer Overall efficiency 38.6% at best efficiency point FMEG 47 Case 180mm long, 356mm internal diameter, 421mm flange diameter Flange fixings 8 holes 10mm on 395mm PCD Impeller Ziehl-Abegg FE2owlet aerofoil with serrated trailing edges Finish Powder coated mild steel, RAL 7045 Operating temperature -20°C to +70°C, up to 95% RH Weight 8 kg Wiring diagram 152-00044 Manuals & Guides Elta Raptor SDA Datasheet Elta Raptor SDA Installation Manual