• 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 Isolator Switch - ISOSW2 x COM-32 x Single phase speed controller by auto-transformer - RMB 1.5 Amp1 x ACO8AC/EC AutoChangeover panel1 x ACOAS/ AC/EC Auto Changeover 8Amp1 x CS2 Current Switch2 x Elta 3 Amp Electronic single phase speed controller with TK1 x Elta ACO Panel 149-ACO14E1 x CONTROL ECOWATT - Basic3 x Elta 6 Amp Electronic single phase speed controller with TK1 x EM30-24 Electro-Mechanical Control Panel3 x Single phase speed controller by auto-transformer - RMB 8.0 Amp1 x ACO 149-ACO1/EDV2 x Single phase speed controller by auto-transformer - RMB 3.5 Amp2 x TG-K Duct temperature sensor2 x Helios HQW-200/2 - IP551 x Elta ACO Panel 149-ACO18B1 x TG-K3/NTC10-01 - Duct temperature sensor1 x Systemair Save Connect 2.0 Internet Module1 x EC-Vent Room Unit3 x Transformer 5 Speed Controller - ATC1-12TK5 x MWS 1.5 – Transformer Controller With Motor Protection1 x Single phase speed controller by auto-transformer - RMB 10.0 Amp3 x WS - Reversing Switch from Helios Fans1 x EM30-24 Control Panel Commissioning Service2 x EC6H - Reversible Group Fan Electronic Controller2 x Envirovent G4 Filter - SL-G4/F71 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE2 x Helios HQW-200/4 - IP551 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6301 x CMT-2 200/80 1.1KW - Single inlet centrifugal fan direct driven1 x KMBI 180 Connector rectangular/circular to install on the discharge of CMT1 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan1 x Vent Axia ACM 125 inline mixed flow duct fan1 x QPTW 250C Acoustic Twin Fan with Controller1 x Elta Variable Speed Drive IP66 - 0.37KW (1ph to 3ph)1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 500
Reviews
TD-SILENT 350/125
TD-SILENT 350/125
£ 178.68

Excellent low noise fan, I've got one unit running years and...