• Model:SQS400-1ECL

Quietflow SQS400-1ECL - Centrifugal Box Fan

£ 2,284.66 (excl. VAT)

£ 2,741.59 (inc. VAT)


Quietflow SQS400-1ECL - Centrifugal Box Fan

• Standard size 400 mm
• Air volume flow rates up to 1.051 m3/s
• Static pressures up to 839 Pa
• Suitable for operating temperatures up to +60℃
• Robust galvanised sheet steel casing
• Available in EC
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.

2 x Elta Variable Speed Drive IP66 - 7.5KW1 x Frequency converter RUCK - FU 075 202 x Elta Variable Speed Drive IP66 - 4.0KW1 x Frequency converter FU 075 14 - IP662 x Elta Variable Speed Drive IP66 - 0.75KW1 x FU 22 25 Frequency Inverter1 x FU 075 52 Frequency Inverter (IP20)1 x Helios VDS-7 Three Phase Transformer 5-Step1 x FRQ5-4A V2 Inverter Speed Controller1 x Helios TSD 5.5 Transformer Speed Control (400v)1 x FRQ-10A V2 Inverter Speed controller1 x FU 15 40 Frequency Inverter1 x Helios - FIUK-11KW 24.0A - FREQUENCY INVERTER1 x FU 075 04 Frequency Inverter (IP20)1 x Frequency converter RUCK - FU 075 211 x ELTA - Three Phase Transformer 10amps1 x Elta 10 Amp Electronic single phase speed controller.1 x ELTA - Three Phase Transformer 3amps1 x Elta Variable Speed Drive IP66 - 2.2KW (1ph to 3ph)1 x FRQ5-10A Inverter Speed controller1 x FU 15 16 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 1.5KW1 x NKS-D swirl diffuser v-300 x 300mm1 x Circular Ceiling Diffuser - TST 1252 x ELTA - Single Phase Transformer 2amps1 x Circular Ceiling Diffuser - TST 2001 x Circular Ceiling Diffuser - TST 1001 x Electronic extractor fan speed controller - FSC 1.51 x PCA Diffuser - PCA-3151 x Balance S Diffuser - NO RING - 125mm1 x JSR 200 Painted RAL50181 x Round ceiling diffuser 400mm1 x Curved Blade Grille 600x600 (2way blow)1 x EC6H - Reversible Group Fan Electronic Controller1 x Elta 3 Amp Electronic single phase speed controller.1 x Airvent ceiling fan controller1 x Elta 6 Amp Electronic single phase speed controller with TK1 x ELTA - Single Phase Transformer 8amps1 x EFSC-3N- Single Phase Speed Control1 x ELTA - Single Phase Transformer 16amps1 x Versio Square Ceiling Diffusers - RS141 x Elta 3 Amp Electronic single phase speed controller with TK1 x Circular Ceiling Diffuser - TST 1601 x Elta 2 Amp Electronic single phase speed controller.1 x ELTA - Single Phase Transformer 4amps1 x AIRVENT speed control - AIR4019611 x Round ceiling diffuser 200mm1 x ELTA - Single Phase Transformer 12amps1 x Balance S Diffuser - NO RING - 100mm1 x Elta Variable Speed Drive IP66 - 0.75KW (1ph to 3ph)1 x Round ceiling diffuser 250mm1 x EFSC-6N- Single Phase Speed Control1 x Elta Variable Speed Drive IP66 - 0.37KW (1ph to 3ph)1 x COM-31 x Round ceiling diffuser 300mm1 x PCA Diffuser - PCA-2501 x Round ceiling diffuser 350mm1 x Elta 6 Amp Electronic single phase speed controller.1 x Elta Variable Speed Drive IP66 - 1.5KW (1ph to 3ph)1 x ELTA - Single Phase Transformer 10amps2 x Run On Timer - 5s - 4hrs - RT5A2 x Remote Timer Control - 13511 x Helios ZNE Electronic Fan Overrun Timer1 x Push Timer Switch - ZA41 x Time Delay Unit - DT20B2 x Multi Input Run On Timer - 0 - 20min - CFCU1 x 7 Day Programmable TIMECLOCK1 x TTC-2000 Three phase electric heater controller1 x ACOAS/ AC/EC Auto Changeover 8Amp1 x ACO8AC/EC AutoChangeover panel1 x EC-Vent control board1 x EM30-24 Electro-Mechanical Control Panel1 x CONTROL ECOWATT - Basic1 x ACO 149-ACO1/EDV2 x Systemair Save Connect 2.0 Internet Module1 x EC-Vent Room Unit1 x U-EK plastic housing IP65 - for use with the U-EK230E Motor Protection1 x Elta ACO Panel 149-ACO18B1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6301 x EM30-24 Control Panel Commissioning Service1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5001 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3551 x Elta Wall Cowl SWC56/631 x GRA-100 External Grill by S&P1 x Elta Wall Cowl SWC25/311 x Elta Wall Cowl SWC35/401 x Elta Louvre Shutter - 400mm1 x Elta Wall Cowl SWC45/501 x Jet Cowl - 315mm1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 7101 x Egg Crate Grille with G2 Dust panel filter 1 inch- 300x3001 x Egg Crate Grille with Dust panel filter 1 inch- 595x5951 x Non Vision 150mm x 150mm (Air Transfer) Grille - With Flange - MILL FINISH1 x Mini Diffuser - 100mm1 x Egg Crate Grille with Dust panel filter 1 inch- 300x3001 x Elta Variable Speed Drive IP66 - 2.2KW1 x 100mm Round Connector with Damper1 x Vent Axia ACM 150 inline mixed flow duct fan1 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)1 x Vent Axia T-Series Controller1 x Transformer (silent) speed controller - RE 3.0 Amp1 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted1 x Easy-fix termination kit - High Rise Ventilator - EFT1 x Quietflow SQS400-1ECL - Centrifugal Box Fan1 x QPTW 250C Acoustic Twin Fan with Controller1 x Transformer (silent) speed controller - RE 1.5 Amp1 x Speed Controller - REB31 x Transformer Speed Control - RTRE- 5.0Amp1 x Speed Controller - REB101 x Transformer Speed Control - RTRE- 7.0Amp1 x CBM 9-9 550w 4P VR (Open Motor)1 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt CVR1 x RDH FLEX-SQUARE - ADH/RDH 04501 x Vent Axia Silent 100T (TIMER)1 x DEF-CBM-RE-7 - Protection Guard1 x FFR 355 Filter Cassette1 x UB47- Universal Insulated Terminal1 x LFBR 315 G4 - Helios Inline Filter Box - 315mm1 x Vertical Cowl and Fan (Single Phase) - RAV400-4-11 x CBS-100 Outlet Flange for CBT-1001 x CBT-80N Centrifugal1 x Quietflow Twin SQTDCV250-1ECL1 x Biflow SB315-CON4-3 - High Temperature Bifurcated Fan1 x Elta SCP400/4-1AC - IP551 x Flat Roof Terminal -OFT 5 - Asphalt1 x ACO3TO-ADS-VFC-7.1A1 x DDMP 10-10 1F 1000W M6A2 DA51 x Biflow SB250-CON4-3 - High Temperature Bifurcated Fan1 x DDMP 07/07 Mounting Flange1 x Duct Termination with Mesh - 150mm1 x CAD-COMPACT 900 ADVANCED N8 - MVHR unit1 x KBA- Inlet Mounting 1801 x DPD 12PM Delivery Surcharge1 x Duct Termination with Mesh - 450mm1 x CBM 7/7 147w 4P RE-VR1 x CBB-60N Centrifugal1 x Ancillary Pack for SLC-900 for SLC900/4A-3AC and SLC900/8-3AC1 x CBM Low Pressure Centrifugal Fan - CBM 12/9 6 Pole 736watt C1 x 125mm Round Connector with Damper1 x KRJ - 120 Inlet Guard for CBB/CBT fans1 x Elta HXP 800mm 6-Pole (Three Phase)1 x Duct Termination with Mesh - 400mm1 x Duct Termination with Mesh - 250mm1 x Biflow SB500-CON2-3 - High Temperature Bifurcated Fan1 x Chaysol Da 12/12 CMAL - 1100W 6 Pole - Closed Motor - Three Phase1 x TecFire Intumescent Damper - Rectangular 400x400mm1 x TD160-NT Mixvent - 100mm - TD160 Timer1 x GENIOX 11 Internal Mounted Unit1 x Binks Bullows - Spray Booth Filter1 x Slimline 150 High Efficiency, Low Profile Heat Recovery Unit1 x ADH E0-450 Flange - 0450 ADHE/RDHE1 x MEV Spider Additional Spigots1 x Chaysol Da 15/11 CMAL - 2200W 6 Pole - Closed Motor - Three Phase1 x D2E-146-AP47-751 x Elta SCP315/4-1AC - IP551 x EX 140A-2 (Three Phase) Centrifugal Fan (ATEX)1 x Elta Standard Ambient Flexible Connector - 800mm1 x Purlin Box 630/710 for RAW Cowls1 x FAST-TRACK RANGE 75mm - Seal Ring (1 bag of 10)1 x CBM 9/7 4p 420W RE-VR1 x Elta SLC500/4B-1AC - IP551 x Helios VARW 450/4 - TK1 x CAD-COMPACT 500 ADVANCED N8 - MVHR unit1 x CBS-160 Outlet Flange for CBT-1601 x Elta SLC560/4C-3AC - IP551 x Contra Rotating TCBBx2-630 Cased Axial - Single Phase - IP65 - Soler & Palau1 x Chaysol DA 9/9 3 speed1 x CBM 12/9 CM/AL 1100W 6PT - Closed Motor1 x TD ECOWATT 2000/315 Inline Duct Fan - TD-ECOWATT1 x Elta Skyflow SSRL710-1EC1 x Elta Turboflow-TF - 450mm - Single phase1 x Spare filter for Energi Sava 380 HR unit
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