• 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 Push Timer Switch - ZA42 x 7 Day Programmable TIMECLOCK2 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)1 x Helios ZNE Electronic Fan Overrun Timer2 x CS2 Current Switch3 x Single phase speed controller by auto-transformer - RMB 1.5 Amp2 x MWS 3 – Transformer Controller With Motor Protection1 x Multi Input Run On Timer - 0 - 20min - CFCU2 x Isolator Switch - ISOSW1 x TTC-2000 Three phase electric heater controller1 x MV-B Dual Switch for use with Helios HQW plate fans,3 x COM-31 x ACO8AC/EC AutoChangeover panel1 x ACOAS/ AC/EC Auto Changeover 8Amp1 x Elta ACO Panel 149-ACO14E2 x Systemair Save Connect 2.0 Internet Module2 x Elta 6 Amp Electronic single phase speed controller with TK1 x CONTROL ECOWATT - Basic2 x Single phase speed controller by auto-transformer - RMB 8.0 Amp1 x EC-Vent control board1 x EM30-24 Electro-Mechanical Control Panel1 x TG-K Duct temperature sensor1 x Single phase speed controller by auto-transformer - RMB 3.5 Amp1 x Single phase speed controller by auto-transformer - RMB 10.0 Amp1 x ACO 149-ACO1/EDV1 x Commercial Single or 3 phase Fan Reversing Switch - RS12 x Elta Variable Speed Drive IP66 - 0.75KW3 x MWS 1.5 – Transformer Controller With Motor Protection2 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt CVR1 x Vent Axia Silent 100T (TIMER)1 x EC6H - Reversible Group Fan Electronic Controller2 x WS - Reversing Switch from Helios Fans1 x Isolator Switch - EFF-ISO1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6301 x Transformer Speed Control - RTRE- 7.0Amp1 x Envirovent G4 Filter - SL-G4/F71 x Helios HQW-630/4 - IP551 x Skyflow SSR Horizontal Roof Cowl SSR31/35BS
Reviews
Transformer (silent) speed controller - RE 1.5 Amp
Transformer (silent) speed controller - RE 1.5 Amp
£ 132.29

Unbelievable! With TDmixvent500: noise reduction minimum 50%...