SDA450 46 3AC Raptor Case Mounted Axial Fan Three Phase AC 450mm

The Elta SDA450/46-3AC is a 450mm Raptor SDA short cased axial fan for fitting in 450mm ductwork. It moves up to 7182 m³/h in free air, 5461 m³/h at 100 Pa and still 4615 m³/h at 150 Pa, the highest pressure in Elta's published table for this model. On low speed (star) it moves 5713 m³/h for quieter running.The 4/6 pole three phase AC external rotor motor (380-415V 50Hz) runs at 1377 rpm in delta and 1111 rpm in star, drawing 538 W and 1.07 A on high speed. It is insulated to Class F with integral thermal overload protection. 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. 3 Phase AC Motor Up to 7182 m³/h Speed Controllable What it is best used forDucted extract or supply on 450mm duct for sports halls, school kitchens, retail units, workshops and factory areas. At 50 Pa it moves 6318 m³/h, roughly 6 air changes an hour in a space of about 1050 m³.Above 150 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. It needs a 380 to 415V three phase supply.Why choose this over alternativesThere are 4 Raptor SDA models in the 450mm case, and the choice comes down to supply, noise and control. This three phase version has two built in speeds from star/delta switching and draws only 1.07 A per phase on high speed. In the same size there is also the Elta SDA450/4-1AC (4 pole single phase, 6674 m³/h, 50 dB(A)), the Elta SDA450/6-1AC (6 pole single phase, 4536 m³/h, 42 dB(A)) and the Elta SDA450/4-1EC (single phase EC, 4903 m³/h, 56 dB(A)).If you need more air, the Elta SDA500/46-3AC moves 8813 m³/h in free air. If the fan will sit in a wall or panel rather than in a duct, the Elta SPA450/46-3AC 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 300mm long with 12 holes of 10mm on a 487mm PCD at each end for Elta matching flanges 061A-0450-C, and mounting feet 060A-0450-C are available. Wire to Elta diagram 152-108: delta connection gives high speed, star gives low speed, and a star/delta switch can select between them. Swap any two supply phases to reverse rotation. For variable speed Elta pair it with the 149-TC33 three phase transformer controller. Wire the thermal contacts (TB TB) into the starter or controller circuit so the motor is protected. 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-TC33 three phase five step transformer controller available to order, ask us Elta ancillary pack APK450SCD/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 SDA450/46-3AC Type Cased axial fan, short case, two speed Diameter 450mm Max airflow 7182 m³/h Static pressure 150 Pa Motor Three phase AC, 380-415V 50Hz, 4/6 pole, 1377/1111 rpm Power 538 W (1.07 A peak) high speed Noise 50 dB(A) inlet, 49 dB(A) outlet at 3m IP rating IP54 motor, IP55 terminal box Warranty 1 Year Manufacturer Airflow at 50 Pa 6318 m³/h Airflow at 100 Pa 5461 m³/h Low speed airflow (star) 5713 m³/h Low speed power 381 W (0.68 A) Low speed noise 45 dB(A) at 3m Overall efficiency 34.0% at best efficiency point FMEG 42 Case 300mm long, 450mm internal diameter, 521mm flange diameter Flange fixings 12 holes 10mm on 487mm 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 18.5 kg Wiring diagram 152-108 Manuals & Guides Elta Raptor SDA Datasheet Elta Raptor SDA Installation Manual