• 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.

1 x NKS-D swirl diffuser v-300 x 300mm1 x Elta 10 Amp Electronic single phase speed controller.1 x PCA Diffuser - PCA-3151 x Circular Ceiling Diffuser - TST 1251 x Curved Blade Grille 600x600 (2way blow)1 x Round ceiling diffuser 400mm1 x ELTA - Single Phase Transformer 2amps1 x Balance S Diffuser - NO RING - 125mm2 x EC6H - Reversible Group Fan Electronic Controller1 x Circular Ceiling Diffuser - TST 1604 x Electronic extractor fan speed controller - FSC 1.51 x JSR 200 Painted RAL50181 x Elta 3 Amp Electronic single phase speed controller.1 x ELTA - Single Phase Transformer 8amps1 x Round ceiling diffuser 300mm1 x ELTA - Single Phase Transformer 16amps2 x Elta 6 Amp Electronic single phase speed controller with TK2 x Elta 3 Amp Electronic single phase speed controller with TK1 x EFSC-3N- Single Phase Speed Control1 x Elta 2 Amp Electronic single phase speed controller.1 x ELTA - Single Phase Transformer 4amps2 x AIRVENT speed control - AIR4019611 x ELTA - Single Phase Transformer 12amps1 x Round ceiling diffuser 350mm1 x Round ceiling diffuser 250mm1 x Airvent ceiling fan controller4 x COM-31 x Elta Variable Speed Drive IP66 - 0.37KW (1ph to 3ph)1 x Run On Timer - 5s - 4hrs - RT5A3 x Push Timer Switch - ZA41 x Helios ZNE Electronic Fan Overrun Timer1 x Time Delay Unit - DT20B3 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 EC-Vent control board1 x Elta ACO Panel 149-ACO14E1 x CONTROL ECOWATT - Basic1 x EM30-24 Electro-Mechanical Control Panel1 x ACO 149-ACO1/EDV1 x EC-Vent Room Unit1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5001 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- 6302 x Systemair Save Connect 2.0 Internet Module1 x Easy-fix termination kit - High Rise Ventilator - EFT1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3551 x EM30-24 Control Panel Commissioning Service1 x Elta Wall Cowl SWC56/631 x Elta Wall Cowl SWC25/311 x Elta Louvre Shutter - 400mm1 x Elta Wall Cowl SWC45/501 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 7101 x Jet Cowl - 315mm1 x Egg Crate Grille with Dust panel filter 1 inch- 595x5951 x Non Vision 150mm x 150mm (Air Transfer) Grille - With Flange - MILL FINISH3 x Mini Diffuser - 100mm1 x Circular Ceiling Diffuser - TST 2001 x Circular Ceiling Diffuser - TST 1001 x Balance S Diffuser - NO RING - 100mm3 x Elta 6 Amp Electronic single phase speed controller.3 x Remote Timer Control - 13511 x Single Deflection Grille 400mm with OBD damper2 x Isolator Switch - ISOSW1 x BEAS-control module1 x MWS 1.5 – Transformer Controller With Motor Protection1 x Envirovent G4 Filter - SL-G4/F71 x Speed Controller - REB51 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted2 x MTS10- extractor fan 3 step switch2 x Speed Controller - REB12 x PIR Sensor - PIR21 x Potentiometer EGH 01 - for DDMP Fans1 x Vent Axia Trickle & Boost Switch1 x Envirovent 4 Way Remote Control Switch - SWHBKRF-44 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan3 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan1 x Vent Axia ACM 150 T (Timer Model) inline mixed flow duct fan2 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE3 x Helios TSW 7.5 Amp Transformer speed controller2 x Transformer 5 Speed Controller - ATC1-10TK3 x Remote controller FLEX - for VEKO INT4 x Transformer 5 Speed Controller - ATC1-4TK2 x Helios TSW 3 Amp Transformer speed controller3 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans4 x Transformer 5 Speed Controller - ATC1-8TK3 x Transformer 5 Speed Controller - ATC1-12TK3 x Three Phase Transformer controllers - RMT 1.5 Amp1 x Helios TSW 1.5 Amp Transformer speed controller1 x Vent Axia ACM 150 inline mixed flow duct fan2 x Vent Axia ACM 200 inline mixed flow duct fan1 x Transformer speed controller - ATC1 - 1.5 Amps3 x Vent Axia ACM 125 inline mixed flow duct fan2 x MWS 3 – Transformer Controller With Motor Protection1 x CS2 Current Switch1 x TG-K Duct temperature sensor4 x Single phase speed controller by auto-transformer - RMB 8.0 Amp1 x WS - Reversing Switch from Helios Fans1 x Two Speed Switch - REGUL-22 x Vent Axia T-Series Controller2 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)2 x Helios HQW-630/4 - IP552 x Helios HQW-200/4 - IP551 x Helios HQW-200/2 - IP551 x TG-K3/NTC10-01 - Duct temperature sensor1 x Transformer (silent) speed controller - RE 1.5 Amp1 x TG-R room temperature sensor1 x REE-1 Electronic Speed Controller1 x Transformer (silent) speed controller - RE 3.0 Amp2 x Isolator Switch - EFF-ISO2 x Commercial Single or 3 phase Fan Reversing Switch - RS11 x Transformer (silent) speed controller - RE 5.0 Amp1 x Transformer Speed Control - RTRE- 12.0Amp1 x REE-2 Electronic Speed Controller4 x REB-CVF 0-10v Controller4 x MTP 10, 10K, Speed control2 x Elta Variable Speed Drive IP66 - 2.2KW1 x Bathroom Fan -Envirovent- Silent 100 T (Timer Model)2 x DEF-CBM-RE-7 - Protection Guard1 x Silent 100 Window Kit - windowS3 x Helios HQW-315/4 - IP552 x Helios HQW-250/4 - IP553 x Skyflow SSR Horizontal Roof Cowl SSR31/35BS2 x PIR Sensor - PIR43 x QPTW 250C Acoustic Twin Fan with Controller2 x VTR 300 STD Filter Kit2 x TG-K Duct temperature sensor2 x UB47- Universal Insulated Terminal1 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt CVR1 x CBT-100N Centrifugal1 x Contactor Interface Station - CI91 x SAVE VSR 300 heat recovery unit1 x Silentub - STUB 1001 x VEKA INT 2000/15.0-L1 EKO1 x Compact SCD450/4-1AC1 x TD160-NT Mixvent - 100mm - TD160 Timer2 x CPTA-E Flush mounted PIR sensor with timer4 x Temperature Fan Speed Controller - ATCP4-WMS1 x Helios TSW 0.3Amp Compact Transformer speed controller
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