SDA400 4 1AC Raptor Case Mounted Axial Fan Single Phase AC 400mm

The Elta SDA400/4-1AC is a 400mm Raptor SDA short cased axial fan for fitting in 400mm ductwork. It moves up to 3611 m³/h in free air, 3236 m³/h at 50 Pa and still 2725 m³/h at 100 Pa, the highest pressure in Elta's published table for this model.A 4 pole single phase AC external rotor motor (220-240V 50Hz) runs at 1359 rpm and draws 234 W at best efficiency (1.04 A peak). It is insulated to Class F with integral thermal overload protection and suits speed control. 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 IP54, and Elta give a 12 month warranty. 1 Phase AC Motor Up to 3611 m³/h Speed Controllable What it is best used forGeneral ducted ventilation on 400mm duct in school kitchens, retail units, classrooms, squash courts and workshops. At 50 Pa it moves 3236 m³/h, roughly 6 air changes an hour in a space of about 540 m³.Above 100 Pa Elta publish no figures, so for long duct runs with filters, heater batteries or attenuators an inline mixed flow or centrifugal box fan is the safer choice. 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 400mm case, and the choice comes down to supply, noise and control. This 4 pole single phase version runs from a standard 230V supply at 1359 rpm. In the same size there is also the Elta SDA400/4-1EC (single phase EC, 5076 m³/h, 58 dB(A)).If you need more air, the Elta SDA450/4-1AC moves 6674 m³/h in free air. For a smaller duct the Elta SDA350/4-1AC gives 2570 m³/h. If the fan will sit in a wall or panel rather than in a duct, the Elta SPA400/4-1AC 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 205mm long with 12 holes of 10mm on a 438mm PCD at each end for Elta matching flanges 061A-0400-C, and mounting feet 060A-0400-C are available. Wire to Elta diagram 152-104B through the fitted IP55 terminal box (21mm cable entry), and connect the thermal cut-out leads (TB TB) into the control circuit so the motor is protected. For speed control Elta list the 149-EL31TK or 149-TC14 for this model; check the controller amp rating against the 1.04 A peak current. 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 149-EL31TK 3 amp electronic speed controller (listed by Elta for this fan) Elta 149-TC14 4 amp five step transformer controller (listed by Elta for this fan) Elta ancillary pack APK400SCD/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 SDA400/4-1AC Type Cased axial fan, short case Diameter 400mm Max airflow 3611 m³/h Static pressure 100 Pa Motor Single phase AC, 220-240V 50Hz, 4 pole, 1359 rpm Power 234 W (1.04 A peak) Noise 49 dB(A) at 3m IP rating IP54 motor, IP55 terminal box Warranty 1 Year Manufacturer Airflow at 50 Pa 3236 m³/h Overall efficiency 31.1% at best efficiency point FMEG 41 Case 205mm long, 400mm internal diameter, 466mm flange diameter Flange fixings 12 holes 10mm on 438mm 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 10 kg Wiring diagram 152-104B Manuals & Guides Elta Raptor SDA Datasheet Elta Raptor SDA Installation Manual