• Model:SQS250-1ECL

Quietflow SQS250-1ECL - Centrifugal Box Fan

£ 1,259.39 (excl. VAT)

£ 1,511.27 (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 Helios TSW 3 Amp Transformer speed controller1 x Circular Ceiling Diffuser - TST 1251 x PCA Diffuser - PCA-3151 x Circular Ceiling Diffuser - TST 1001 x Circular Ceiling Diffuser - TST 2001 x Round ceiling diffuser 400mm1 x Curved Blade Grille 600x600 (2way blow)1 x JSR 200 Painted RAL50181 x Versio Square Ceiling Diffusers - RS141 x Balance S Diffuser - NO RING - 100mm1 x Round ceiling diffuser 200mm1 x Round ceiling diffuser 300mm1 x PCA Diffuser - PCA-2502 x Remote Timer Control - 13511 x Run On Timer - 5s - 4hrs - RT5A1 x Helios ZNE Electronic Fan Overrun Timer3 x Push Timer Switch - ZA41 x Time Delay Unit - DT20B3 x Multi Input Run On Timer - 0 - 20min - CFCU1 x TTC-2000 Three phase electric heater controller1 x ACO8AC/EC AutoChangeover panel1 x ACOAS/ AC/EC Auto Changeover 8Amp1 x Elta ACO Panel 149-ACO14E1 x EC-Vent control board1 x ACO 149-ACO1/EDV1 x EM30-24 Electro-Mechanical Control Panel1 x U-EK plastic housing IP65 - for use with the U-EK230E Motor Protection1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5001 x EC-Vent Room Unit3 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan1 x Balance S Diffuser - NO RING - 125mm1 x Round ceiling diffuser 250mm3 x Single phase speed controller by auto-transformer - RMB 1.5 Amp1 x Vent Axia T-Series Controller3 x Electronic extractor fan speed controller - FSC 1.53 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 fan1 x Remote controller FLEX - for VEKO INT1 x Helios TSW 7.5 Amp Transformer speed controller2 x Transformer 5 Speed Controller - ATC1-12TK3 x Three Phase Transformer controllers - RMT 1.5 Amp2 x Vent Axia ACM 150 inline mixed flow duct fan2 x Vent Axia ACM 200 inline mixed flow duct fan2 x Vent Axia ACM 100 inline mixed flow duct fan1 x DEF-140T Inlet Guard for the CBT-100N3 x Isolator Switch - ISOSW3 x COM-32 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE1 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans2 x Single phase speed controller by auto-transformer - RMB 3.5 Amp1 x CMT-2 200/80 1.1KW - Single inlet centrifugal fan direct driven3 x Elta 6 Amp Electronic single phase speed controller with TK2 x TG-K Duct temperature sensor2 x WS - Reversing Switch from Helios Fans1 x BEAS-control module2 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)1 x Transformer (silent) speed controller - RE 3.0 Amp1 x Envirovent 4 Way Remote Control Switch - SWHBKRF-41 x Helios TSW MCB Amp Transformer speed controller3 x Vent Axia ACM 125 inline mixed flow duct fan1 x CS2 Current Switch2 x Systemair Save Connect 2.0 Internet Module1 x MV-B Dual Switch for use with Helios HQW plate fans,1 x MWS 1.5 – Transformer Controller With Motor Protection1 x CONTROL ECOWATT - Basic1 x CBS-60 Outlet Flange for CSB/CBT-601 x Envirovent G4 Filter - SL-G4/F71 x TG-K3/NTC10-01 - Duct temperature sensor1 x Helios HQW-200/4 - IP551 x KMBI 180 Connector rectangular/circular to install on the discharge of CMT1 x Helios TSW 0.3Amp Compact Transformer speed controller1 x RRB- transformer controller
BD7/7 centrifugal M4 0.13Kw
BD7/7 centrifugal M4 0.13Kw
£ 345.00 now £ 300.00
Reviews
Duct Mounted Inline Filter - EU4
Duct Mounted Inline Filter - EU4
£ 44.99

Well made and robust, but it was not use for my application ...