• Model:SQS250-1ECL

Quietflow SQS250-1ECL - Centrifugal Box Fan

£ 1,177.00 (excl. VAT)

£ 1,412.40 (inc. VAT)


Quietflow SQS250-1ECL - Centrifugal Box Fan

• Standard size 250 mm
• Air volume flow rates up to 0.347 m3/s
• Static pressures up to 841 Pa
• Suitable for operating temperatures up to +60℃
• Robust galvanised sheet steel casing
Acoustically lined single in-line centrifugal fans, suitable for internal duct mounting. The Quietflow incorporates advanced backward curved impellers, with three ndimensional profiled blades.

Low Noise
Each unit is acoustically lined internally with Class O rated (BS 476 Parts 6 and 7) fire resistant acoustic foam lining minimising breakout noise levels.

Easy Installation
New multi-mount brackets allow easy mounting in a range of orientations.

Easy Commissioning
Integrated commissioning control allowing single speed selection and also limiting maximum speed if used with an external potentiometer.

Efficient Performance
High efficiency low tonal noise backward curved centrifugal impellers are directly driven by an EC external rotor motor, provide low specific fan powers and stepless speed control without tonal noise generation.

Weather Resistance
Units can be weatherproofed in the factory to allow external installation.

PDF Files


SQS250-1ECL Specification Sheets

2 x 204x60mm Flat Channel Clip (Pack of 5)1 x Circular Ceiling Diffuser - TST 1601 x 110 x 54mm Low Profile Plastic Ducting - 1 Meter1 x 204x60mm 90 Degree Horizontal Bend1 x HCFB/4-560-H-A1 x EuroSeries (ESP) - Plate Mounted Axial Fans 560-34-B1 x EB-100N T - Centrifugal Fan with Timer1 x Bathroom Fan -Envirovent- Silent 100 S (Standard Model)1 x AL 1000 D4 02 - High Performance Long Cased Axial Fan1 x Elta SCP250/4-1AC - IP551 x 125mm Round Connector1 x Elta SPA500/4-1AC - IP541 x AL 710 D4 mounting Feet (Pair)1 x HCFT/4-5001 x Manual Overide Switch - MOS1 x DOL Starter with Isolator - Three phase1 x GB-WK Wall Bracket For Giga Box Fans - 400-630mm1 x Isolator Relay Controller - 4420301 x 7-Day Digital Time Switch - TCK7D-6A1 x Helios HQW-500/4 - IP551 x 1mtr Round Ducting - 150mm1 x Balance S Diffuser - NO RING - 100mm1 x CFI In-line 3000 - Carbon Filter1 x MPS Weather Housing1 x Elta SLC355/4-3AC - IP551 x Raptor SDA350/4-1AC1 x Metal Inline Fan - VENT-125NK1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5001 x AL 355 D2 01 - High Performance Long Cased Axial Fan1 x CTI CVA-N 500/560 Outdoor cover for CVAB/T Fans1 x Soler & Palau TCBT/4-355/H - IP441 x HEATER BATTERY+CONTROLS 315 DIA 1 PHASE 4/8kW1 x CBMT/Q 200-54 1 HEATER KIT1 x Air Trak Heater-100mm1 x Kitchen Grease Filter - Mesh Type Non standard : 381 x 355 x 47mm1 x CBMT/Q 100-06 1 HEATER KIT1 x CBMT/Q 500-17 3 HEATER KIT1 x VBK 65 - Water heating battery1 x Synthetic Air Filter Media - 15mm x 1000mm x 1000mm1 x Acoustic Commercial Kitchen Inline Exhaust Fan - MPS (Three Phase) - 250mm1 x Compact SCD450/4-1AC1 x Elta Turboflow-TF - 450mm - Three phase1 x Soler & Palau TCBT/6-560/H - IP651 x MV EC 100 Multivent1 x Helios TSD 3.0 Transformer Speed Control (400v)1 x Soler & Palau - HXTR/12-800/28-A1 x ELTA - Three Phase Transformer 10amps1 x Dektite Combo Pipe Flashing - DC210REC1 x Euro Series - Case Axial - ESC500141 x Soler & Palau - HXBR-200 ECOWATT - IP441 x Soler & Palau HXM-200mm1 x JAA-560 Acoustic Upstand1 x Elta Quietflow Twin SQT500-3ECL1 x Purlin Box 350 for RAW Cowls1 x B-flow Impeller HCBB/T-450mm1 x Elta Unpodded Silencer Melinex 2D-1000mm Dia1 x Elta Turboflow-TF - 500mm(B) - Three phase1 x Elta 10 Amp Electronic single phase speed controller.1 x ELTA - Single Phase Transformer 2amps1 x Elta 6 Amp Electronic single phase speed controller.1 x HCFB/4-630mm plastic impeller plate fan1 x AW Sileo EC Plate Axial Fan - Three Phase - 630mm1 x HRT/4-630/25-APN C21 x Jetflow-HIT Metal inline - 200mm1 x ASSG/F 500-560 Flex. conn. DVG1 x Elta SCP630/4-1AC - IP551 x HRB/4-400-APN1 x Airvent Ceiling Sweep Fan - 48 inch - 4441231 x Airvent Ceiling Sweep Fan - 36 inch - 4441221 x Soler & Palau TCBT/4-400/H - IP441 x CBA-100 Inlet Flange for CBT-1001 x Air Quality Sensor - AQS1 x *VORT HRW 30 MONO Evo - Single Room Heat Recovery Unit,1 x 110 x 54mm Flat Channel Connector1 x Jetflow-HIT Metal inline - 100mm1 x Etaline 315mm - E2 03 (Low Power Version)2 x 100mm Round Wall Plate1 x Axial Roof mounted Extract/Supply Fan- -HCTT/4-1000-B 5.5kw1 x K 315 L Sileo Metal Tube Fan1 x Metal Inline Fan - VENT-355N1 x Ancillary Pack for SB-Biflow 315 model1 x Soler & Palau TCBB/2-250/H - IP541 x EM 150L-E2M 01- Etamaster-1501 x EM 200-E2M 01- Etamaster-2001 x Silent 100 Window Kit - windowS1 x ACO-TK-ADS Auto Changeover Panel - Single Phase1 x HD Series Control Damper - 1000mm X 1000mm1 x HIMF - Mixed Flow Fan 125mm Inline Fan1 x Carriage1 x HV Wall Mounted Belt Drive Fan 1000mm 220V to 240V / 50Hz 0.75kW - Single Phase1 x Woods 31JMV14/2/6/33 - Long Cased Axial Fan 315mm1 x JETLINE-160 - In Line Centrifugal Duct Fan1 x Anti Vibration Duct Suspension Rings - 160mm1 x Soler & Palau - HCBT/4-1000/L - IP551 x 100mm Round 90 Degree Bend1 x Same Day Shipping Surcharge1 x DV-ROF-V-225 Roof mounted unit1 x Gorilla HVLSX401 x Spigot plate - 800mm1 x Flanged Spigot - 100mm1 x HRST/6-910/30-BZ1 x BDB 630 TL D50 VE - High Pressure Centrifugal Fan1 x Lo-Carbon PUREAIR HOME WITH HEATER BOXED ASSY1 x Ducting 15 Degree Bend - 1000mm1 x Capacitor 6uf for use with the EBM D4E range1 x Versio Square Ceiling Diffusers - RS141 x AMCL1002 - LPHW coil only1 x Connection Lead for Td ecowatt & PIR sensor1 x Gorilla HVLSX601 x Spiral Ducting 3 Meters - 1000mm1 x ES9G Window Fan Systemair1 x CBM 12/9 515W RE-VR1 x Ducting Y Piece - 1000mm1 x MEV 160 & 300 Additional Spigots1 x HA-600 SLIM Cooker Hood - Stainless Steel1 x Ducting Y Piece - 200mm1 x Duct Suspension Rings - 200mm1 x Ducting Y Piece - 125mm1 x Ducting T Piece Equal - 250mm
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