• 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

1 x CBS-60 Outlet Flange for CSB/CBT-601 x CS2 Current Switch2 x Elta Variable Speed Drive IP66 - 0.37KW (1ph to 3ph)1 x Elta ACO Panel 149-ACO14E1 x EC-Vent control board1 x CONTROL ECOWATT - Basic1 x Electronic extractor fan speed controller - FSC 1.52 x COM-32 x EC6H - Reversible Group Fan Electronic Controller1 x ACO 149-ACO1/EDV1 x BEAS-control module1 x EM30-24 Electro-Mechanical Control Panel2 x Elta 6 Amp Electronic single phase speed controller with TK1 x Elta 3 Amp Electronic single phase speed controller with TK1 x Envirovent G4 Filter - SL-G4/F71 x CMT-2 225/090 1.1KW - Single inlet centrifugal fan direct driven1 x Transformer Speed Control - RTRE- 12.0Amp1 x Vent Axia T-Series Controller1 x Transformer (silent) speed controller - RE 3.0 Amp1 x Helios HQW-630/4 - IP553 x Transformer (silent) speed controller - RE 1.5 Amp1 x U-EK plastic housing IP65 - for use with the U-EK230E Motor Protection1 x CBA-60 Inlet Flange for CBT-601 x Remote Timer Control - 13511 x REE-1 Electronic Speed Controller1 x TG-K3/NTC10-01 - Duct temperature sensor1 x EC-Vent Room Unit2 x Single phase speed controller by auto-transformer - RMB 8.0 Amp1 x Elta ACO Panel 149-ACO18B1 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted1 x Vent Axia Silent 100T (TIMER)4 x MWS 1.5 – Transformer Controller With Motor Protection1 x Single phase speed controller by auto-transformer - RMB 3.5 Amp1 x TG-K Duct temperature sensor3 x WS - Reversing Switch from Helios Fans2 x Commercial Single or 3 phase Fan Reversing Switch - RS11 x Helios HQW-200/4 - IP551 x Systemair Save Connect 2.0 Internet Module1 x EBM-Papst D4E225-BC01-17 Double inlet1 x Helios HQW-200/2 - IP551 x Transformer 5 Speed Controller - ATC1-12TK1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5001 x EM30-24 Control Panel Commissioning Service1 x TUNE-R-200-3-M1 - Control Damper1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6301 x DDMP 12-12 3F 1810W M6A4 DG01 x Transformer Speed Control - RTRE- 7.0Amp1 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt CVR
Reviews
Circular Inline Silencers - 0.6M long - SLU-600
Circular Inline Silencers - 0.6M long - SLU-600
£ 58.40

I have a loft mount extractor fan which was very noisy. I ...