SQUHT67 450 EC 3 Qube High Temperature Centrifugal Box Fan Three Phase EC 450mm

The Elta Qube SQUHT67/450-EC-3 is a high temperature centrifugal box fan with a 450mm backward curved impeller in a 670mm cube casing, rated by Elta for operating temperatures up to +120°C in the duct. It moves up to 7560 m³/h at free air on full (10V) speed and 5162 m³/h at 500 Pa, the highest pressure in Elta's performance table for this model.The three phase IE6 EC motor (380-480V 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 or potentiometer speed signal, with volt free fault contacts for a BMS. The motor sits out of the air stream, so heat, grease and contaminants in the extract do not reach it. 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 12 month warranty. 3 Phase EC Motor Up to 7560 m³/h Speed Controllable What it is best used forHot, greasy or contaminated extract inside the building where the fan sits in the duct run, typically above a ceiling or in a plant room: a large commercial or college kitchen, a factory process line or a busy bakery. Elta list kitchens, restaurants, schools, colleges, shops, shower rooms and factories as typical uses. It moves 7560 m³/h free air and 6581 m³/h against 200 Pa, which is enough for a canopy, grease filters and a reasonable duct run.It is not a smoke extract fan. The +120°C figure is a continuous in-duct running rating, and Elta's datasheet gives no smoke or fire temperature/time rating, so use a certified smoke fan where the design calls for one. It is also not suitable for corrosive or explosive atmospheres. If the air stays below 50°C, the standard Qube SQU range covers the same box sizes without the high temperature build.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 5504 m³/h free air and at 5V 3366 m³/h, so one fan can be commissioned to the exact duty. The Elta SQUHT67/450-4-3 is the AC version in the same box size, which runs at fixed speed or from a separate inverter.For more, the Elta SQUHT82/500-EC-3 gives 9007 m³/h. If the air will stay below 50°C, the Elta SQU67/450-EC-3 is the standard 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 152-734 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. Elta give a maximum control cable length of 30m for the 2-10V signal; NC and NO fault contacts are provided for a BMS or alarm. 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 warn that the bulkhead and frame can get hot when the fan is handling air at higher temperatures, so keep it clear of anything that could be damaged by heat and guard against contact. The EC motor may also slow itself down automatically under excessive load or temperature. You'll also need Elta EC Electronic Controller 149-POT-10-MI for manual speed control (Elta's listed controller for this fan). Browse more high temperature fans, commercial box fans or commercial kitchen extractor fans, or call us for help choosing the right fan.Specifications Model SQUHT67/450-EC-3 Type High temperature centrifugal box fan, EC, motor out of airstream Size 450mm impeller, 670mm box Max airflow 7560 m³/h Static pressure 500 Pa Motor Three phase EC, 380-480V 50/60Hz, 1810 rpm at 10V Power 1.668 kW at 10V (3.61 A peak at 400V) Noise 62 dB(A) inlet, 65 dB(A) outlet, 52 dB(A) breakout at 3m IP rating IP55 motor Warranty 1 Year Manufacturer Max air temperature +120°C in duct, operating (not smoke rated) Airflow at 100 Pa 7063 m³/h Airflow at 200 Pa 6581 m³/h Airflow at 7.5V / 5V 5504 / 3366 m³/h free air Speed control Integrated drive: 2-10V or potentiometer, fault relay contacts Inlet / outlet 600mm / 610mm Box dimensions 670 x 670 x 670mm Overall efficiency 51.3% Wiring diagram Elta 152-734 Weight 70 kg Manuals & Guides Elta Qube SQUHT Datasheet Elta Qube SQUHT Installation and Maintenance Manual