SCP250 4 1AC Compact Plate Axial Fan Single Phase AC 250mm

The Elta SCP250/4-1AC is a 250mm Compact SCP plate mounted axial fan with a single phase 4 pole AC motor, moving up to 954 m³/h in free air and working against static pressures up to 50 Pa. It is built for moving large volumes of air against low resistance, straight through a wall, panel or bulkhead.The 220-240V induction motor runs at 1445 rpm with greased for life ball bearings, drawing 80 W and 0.38 A. The Series 1 impeller has adjustable pitch GRP aerofoil blades, the mild steel plate and motor are powder coated and the guards epoxy coated, an IP55 terminal box is fitted on 550mm of flexible conduit, and Elta give a 12 month warranty. 1 Phase AC Motor Up to 954 m³/h Speed Controllable What it is best used forThrough-wall extract or supply on a single phase supply in plant rooms, stores, small workshops, garages and back of house rooms in shops. At 954 m³/h it gives about 6 air changes an hour in a space of roughly 165 m³, for example 11m x 5m with a 3m ceiling.It is a low pressure fan. The datasheet shows airflow only up to 50 Pa, so it is the wrong choice for ducted systems or heavy louvres; use a cased axial or inline mixed flow fan there. When speed controlled Elta limit the air temperature to +50°C (+70°C at fixed speed), and it is not suitable for corrosive or explosive atmospheres.Why choose this over alternativesIf you have a three phase supply, the Elta SCP250/4-3AC is the same size (1188 m³/h, up to 50 Pa, 90 W, 42 dB(A)). The single phase Elta SCP250-1EC uses an EC motor with built in speed control and gives 868 m³/h, up to 75 Pa, 58 W, 45 dB(A), so it suits sites that need more pressure or BMS control. Elta's Raptor Elta SPA250/4-1AC is the alternative 250mm single phase plate fan with a Ziehl-Abegg impeller (983 m³/h, up to 50 Pa, 46 W, 37 dB(A)).Installation notes Mount the 370 x 370mm fan plate securely at any angle using the four 10mm holes on 320mm centres. Make sure the structure can carry its 5 kg and leave access for maintenance. The motor is prewired to an IP55 terminal box on 550mm of 20mm flexible conduit. Wire to Elta diagram 152-500 and make all earth connections; the thermal cut-out must be wired into the starter or controller control circuit. For speed control Elta list the 149-TC12 five step transformer controller (2 A). Diagram 152-500 also shows connection to the 149-EL31TK and 149-EL61TK electronic controllers; choose one rated above the motor current. Fit a local means of isolation, but do not use the isolator for day to day on and off control. Elta warn this shortens motor life; use a controller or switch instead. At first start check rotation, airflow direction and that the running current does not exceed the rating plate. Inspect and clean blades and guards at least every 12 months. You'll also need Elta 149-TC12 five step transformer controller (2 amp) available to order, ask us Elta 064-0250-C louvre shutter available to order, ask us Elta 078-0250-C impeller side guard available to order, ask us Elta SWC25/31 wall cowl available to order, ask us Browse more plate axial fans, axial fans or Elta fans, or call us for help choosing the right fan.Specifications Model SCP250/4-1AC Type Plate mounted axial fan Diameter 250mm Max airflow 954 m³/h Static pressure 50 Pa Motor Single phase AC, 220-240V 50Hz, 4 pole, 1445 rpm Power 80 W (0.38 A) Noise 42 dB(A) at 3m IP rating IP55 terminal box Warranty 1 Year Manufacturer Airflow at 50 Pa 670 m³/h Overall efficiency 12.0% FMEG Not applicable (under 125 W) Plate size 370 x 370mm Fixing centres 320mm, 4 holes 10mm Weight 5 kg Operating temperature -20°C to +70°C fixed speed, -20°C to +50°C speed controlled Wiring diagram 152-500 Manuals & Guides Elta Compact SCP Datasheet Elta Compact SCP Installation Manual