SQUHT50 350 EC 1 Qube High Temperature Centrifugal Box Fan Single Phase EC 350mm

The Elta Qube SQUHT50/350-EC-1 is a high temperature centrifugal box fan with a 350mm backward curved impeller in a 500mm cube casing, rated by Elta for operating temperatures up to +120°C in the duct. It moves up to 3510 m³/h at free air on full (10V) speed and 2239 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, 4-20mA, PWM or potentiometer speed signal. 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. 1 Phase EC Motor Up to 3510 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 restaurant or school kitchen, a college workshop, a shop back of house or a changing room block. Elta list kitchens, restaurants, schools, colleges, shops, shower rooms and factories as typical uses. It moves 3510 m³/h free air and 3118 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 2527 m³/h free air and at 5V 1555 m³/h, so one fan can be commissioned to the exact duty.For less air, the Elta SQUHT50/315-EC-1 gives 2398 m³/h free air. For more, the Elta SQUHT67/450-EC-1 gives 7027 m³/h. If the air will stay below 50°C, the Elta SQU50/350-EC-1 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 35 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 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 maximum control cable lengths of 30m for a voltage signal and 10m for PWM. 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 SQUHT50/350-EC-1 Type High temperature centrifugal box fan, EC, motor out of airstream Size 350mm impeller, 500mm box Max airflow 3510 m³/h Static pressure 500 Pa Motor Single phase EC, 220-277V 50/60Hz, 1810 rpm at 10V Power 0.574 kW at 10V (4.14 A peak at 230V) Noise 57 dB(A) inlet, 59 dB(A) outlet, 48 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 3323 m³/h Airflow at 200 Pa 3118 m³/h Airflow at 7.5V / 5V 2527 / 1555 m³/h free air Speed control Integrated drive: 2-10V, 4-20mA, PWM or potentiometer Inlet / outlet 430mm / 440mm Box dimensions 500 x 500 x 500mm Overall efficiency 59.7% Wiring diagram Elta 152-733 Weight 35 kg Manuals & Guides Elta Qube SQUHT Datasheet Elta Qube SQUHT Installation and Maintenance Manual