SQU67 450 EC 1 Qube Centrifugal Box Fan Single Phase EC 450mm

The Elta Qube SQU67/450-EC-1 is a centrifugal box fan with a 450mm backward curved impeller in a 670mm cube casing, for supply or extract air up to +50°C. It moves up to 7132 m³/h at free air on full (10V) speed and 5126 m³/h at 500 Pa, the highest pressure in Elta's performance table for this model.The single phase IE6 EC motor (220-277V 50/60Hz) is IP55, has a built in variable speed drive with protection against overload, over temperature and locked rotor, and takes a 2-10V, PWM or potentiometer speed signal. The impeller is EN-AW 5754 aluminium, non-overloading and balanced to G6.3, inside an extruded aluminium frame with 25mm double skinned, mineral wool filled panels that can be moved to give a 90° or straight through airflow. Elta give a 24 month warranty. 1 Phase EC Motor Up to 7132 m³/h Speed Controllable What it is best used forGeneral supply or extract on a ducted system: a sports hall, a factory bay, a large retail unit or supply air for a large kitchen. Elta list kitchens, schools, colleges, shops, sports halls, factories, industrial units and warehousing among typical uses. It moves 7132 m³/h free air and about 6318 m³/h against 200 Pa; at that 200 Pa figure it gives roughly 10 air changes an hour in a space of about 630 m³.It is the wrong fan for hot extract: the Qube SQU is for an airstream up to +50°C, and Elta state it is not suitable for corrosive or explosive atmospheres. For hot or grease laden kitchen canopy extract, choose a Qube SQUHT high temperature box fan, which keeps the motor out of the air stream and is rated to +120°C in the duct.Why choose this over alternativesAn EC Qube needs no separate inverter: the drive is built into the motor, so speed is set from a simple potentiometer or a 2-10V BMS signal, and turning it down saves energy. At 7.5V this model gives 5245 m³/h free air and at 5V 3168 m³/h, so one fan can be commissioned to the exact duty. The Elta SQU67/400-4-3 is the AC version in the same box size, which runs at fixed speed or from a separate inverter.For less air, the Elta SQU50/350-EC-1 gives 3586 m³/h free air. For more, the Elta SQU82/560-EC-1 gives 9302 m³/h. For hot or greasy air up to +120°C, the Elta SQUHT67/450-EC-1 is the high temperature version with the same box and impeller size.Installation notes The fan can be mounted at any angle. It arrives set up for 90° airflow; move the panels to make it straight through if your duct runs in line. Make sure it is adequately supported, as it weighs 70 kg. Leave access to the panels: they are fixed with multi thread U nuts and lift off for cleaning and maintenance. Elta recommend an inspection at least every 12 months. Wire to Elta diagram 152-733 or 152-736 (see product label) with a means of isolation. For external speed control from the 149-POT-10-MI or a BMS, remove the jumper on the control board. The label shows which of the two diagrams applies, and the maximum control cable lengths differ between them, so check before running long control cables. Disconnect the fan before any insulation resistance testing, as the test can damage the EC electronics and that is not covered by warranty. The motor has an auto reset thermal contact, so isolate the supply before working on it because it can restart once cool. Elta rate the Qube for ambient temperatures of -20°C to +50°C and up to 95% relative humidity. Site the discharge so it cannot pull flue gases back from any open flued appliance. You'll also need Elta EC Electronic Controller 149-POT-10-MI for manual speed control (Elta's listed controller for this fan). Elta electric heater battery 018-RH80/50-18-3TP, if you need to temper supply air. Available to order, ask us. Browse more commercial box fans, commercial extractor fans or Elta fans, or call us for help choosing the right fan.Specifications Model SQU67/450-EC-1 Type Centrifugal box fan, EC Size 450mm impeller, 670mm box Max airflow 7132 m³/h Static pressure 500 Pa Motor Single phase EC, 220-277V 50/60Hz, 1655 rpm at 10V Power 1.289 kW at 10V (8.28 A peak at 230V) Noise 60 dB(A) inlet, 63 dB(A) outlet, 50 dB(A) breakout at 3m IP rating IP55 motor Warranty 2 Year Manufacturer Max air temperature +50°C airstream Airflow at 100 Pa 6739 m³/h Airflow at 200 Pa 6318 m³/h Airflow at 7.5V / 5V 5245 / 3168 m³/h free air Speed control Integrated drive: 2-10V, PWM or potentiometer Straight through airflow 6718 m³/h free air at 10V (figures above are 90° configuration) Inlet / outlet 600mm / 610mm Box dimensions 670 x 670 x 670mm Overall efficiency 67.7% Wiring diagram Elta 152-733 or 152-736 (see product label) Weight 70 kg Manuals & Guides Elta Qube SQU Datasheet Elta Qube SQU Installation and Maintenance Manual