• 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.

3 x Speed Controller - REB51 x Elta 3 Amp Electronic single phase speed controller with TK2 x Helios TSW MCB Amp Transformer speed controller3 x Electronic extractor fan speed controller - FSC 1.51 x KMBI 180 Connector rectangular/circular to install on the discharge of CMT1 x Helios HQW-630/4 - IP552 x Elta Variable Speed Drive IP66 - 2.2KW1 x Elta Variable Speed Drive IP66 - 7.5KW1 x FRQ5-4A V2 Inverter Speed Controller1 x FU 15 40 Frequency Inverter1 x FRQ-10A V2 Inverter Speed controller1 x FU 075 52 Frequency Inverter (IP20)1 x FU 22 25 Frequency Inverter1 x Frequency converter FU 075 14 - IP662 x Elta Variable Speed Drive IP66 - 0.75KW1 x Elta Variable Speed Drive IP66 - 1.5KW1 x Frequency converter RUCK - FU 075 201 x Elta Variable Speed Drive IP66 - 4.0KW1 x FU 15 16 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 5.5KW1 x Elta Variable Speed Drive IP66 - 2.2KW (1ph to 3ph)1 x FRQ5-10A Inverter Speed controller1 x ATEX rated 3-phase Speed Control - R-DK4 KT (EX)1 x ELTA - Three Phase Transformer 3amps1 x ELTA - Three Phase Transformer 10amps1 x FU 075 04 Frequency Inverter (IP20)1 x Frequency converter RUCK - FU 075 211 x FU 22 04 Frequency Inverter1 x Helios - FIUK-11KW 24.0A - FREQUENCY INVERTER1 x NKS-D swirl diffuser v-300 x 300mm1 x Circular Ceiling Diffuser - TST 1251 x PCA Diffuser - PCA-3151 x Balance S Diffuser - NO RING - 125mm1 x Circular Ceiling Diffuser - TST 2001 x Circular Ceiling Diffuser - TST 1001 x Round ceiling diffuser 400mm1 x Curved Blade Grille 600x600 (2way blow)1 x JSR 200 Painted RAL50182 x Circular Ceiling Diffuser - TST 1601 x Balance S Diffuser - NO RING - 100mm1 x Round ceiling diffuser 200mm1 x Round ceiling diffuser 300mm1 x Round ceiling diffuser 250mm1 x Round ceiling diffuser 350mm1 x PCA Diffuser - PCA-2501 x Remote Timer Control - 13511 x Run On Timer - 5s - 4hrs - RT5A3 x Push Timer Switch - ZA41 x Helios ZNE Electronic Fan Overrun Timer3 x Multi Input Run On Timer - 0 - 20min - CFCU1 x Time Delay Unit - DT20B1 x 7 Day Programmable TIMECLOCK2 x Vent Axia ACM 150 inline mixed flow duct fan2 x Three Phase Transformer controllers - RMT 1.5 Amp2 x Isolator Switch - ISOSW1 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)2 x COM-31 x MWS 1.5 – Transformer Controller With Motor Protection2 x BEAS-control module2 x Envirovent G4 Filter - SL-G4/F71 x CBS-60 Outlet Flange for CSB/CBT-602 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan2 x Transformer 5 Speed Controller - ATC1-12TK2 x CS2 Current Switch1 x TTC-2000 Three phase electric heater controller1 x ACOAS/ AC/EC Auto Changeover 8Amp1 x ACO8AC/EC AutoChangeover panel1 x Elta ACO Panel 149-ACO14E1 x EC-Vent control board1 x CONTROL ECOWATT - Basic1 x ACO 149-ACO1/EDV1 x U-EK plastic housing IP65 - for use with the U-EK230E Motor Protection1 x EC-Vent Room Unit3 x Systemair Save Connect 2.0 Internet Module1 x Elta ACO Panel 149-ACO18B1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5001 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6301 x EM30-24 Control Panel Commissioning Service1 x Easy-fix termination kit - High Rise Ventilator - EFT1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3551 x Transformer Speed Control - RTRE- 1.5Amp1 x Elta Wall Cowl SWC56/631 x Bathroom Fan -Envirovent- Silent 100 T (Timer Model)1 x MTS10- extractor fan 3 step switch1 x Envirovent 4 Way Remote Control Switch - SWHBKRF-41 x Remote controller FLEX - for VEKO INT1 x Helios TSW 7.5 Amp Transformer speed controller2 x Vent Axia ACM 200 inline mixed flow duct fan2 x Vent Axia ACM 125 inline mixed flow duct fan2 x Vent Axia ACM 100 inline mixed flow duct fan2 x Single phase speed controller by auto-transformer - RMB 1.5 Amp1 x TG-K Duct temperature sensor2 x Transformer (silent) speed controller - RE 3.0 Amp2 x TG-K3/NTC10-01 - Duct temperature sensor1 x FAST-TRACK RANGE 75mm - Click Ring (1 bag of 10)1 x MEV Spider Wireless boost Switch - MEV-SWH-W1 x CBM 9-9 550w 4P VR (Open Motor)1 x TG-R room temperature sensor1 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan1 x Transformer (silent) speed controller - RE 1.5 Amp1 x Transformer (silent) speed controller - RE 5.0 Amp1 x Vent Axia ACM 150 T (Timer Model) inline mixed flow duct fan1 x Elta Wall Cowl SWC35/402 x QPTW 250C Acoustic Twin Fan with Controller1 x Isolator Switch - EFF-ISO1 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt VR2 x Elta 6 Amp Electronic single phase speed controller with TK3 x MTP 10, 10K, Speed control1 x REB-CVF 0-10v Controller1 x Elta Louvre Shutter - 400mm1 x Elta Wall Cowl SWC45/501 x Speed Controller - REB1-N1 x Elta Wall Cowl SWC25/311 x Multiflow SMB550/4-1AC1 x GRA-100 External Grill by S&P1 x TD Mixvent 800/200 EEXEIIT31 x Transformer 5 Speed Controller - ATC1-2TK1 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE
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