• 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 Spigot plate - 250mm1 x TUNE-R-250-3-M0 - Control Damper (NO ACTUATOR)1 x Ducting 30 Degree Bend - 400mm1 x Duct Suspension Rings - 400mm1 x Elta 10 Amp Electronic single phase speed controller.1 x Transformer 5 Speed Controller - ATC1-4TK1 x ELTA - Single Phase Transformer 2amps1 x 5-Speed Controller for use with Elta SAX Classic Fans1 x Helios TSW 1.5 Amp Transformer speed controller2 x Electronic extractor fan speed controller - FSC 1.52 x Elta 6 Amp Electronic single phase speed controller with TK1 x EFSC-3N- Single Phase Speed Control2 x EC6H - Reversible Group Fan Electronic Controller1 x ELTA - Single Phase Transformer 8amps2 x Remote Timer Control - 13511 x Elta 2 Amp Electronic single phase speed controller.2 x Elta 3 Amp Electronic single phase speed controller with TK1 x Elta 3 Amp Electronic single phase speed controller.1 x ELTA - Single Phase Transformer 16amps1 x Elta 6 Amp Electronic single phase speed controller.1 x Airvent ceiling fan controller1 x ELTA - Single Phase Transformer 12amps1 x AIRVENT speed control - AIR4019611 x ELTA - Single Phase Transformer 4amps1 x COM-31 x EFSC-6N- Single Phase Speed Control1 x Run On Timer - 5s - 4hrs - RT5A1 x Helios ZNE Electronic Fan Overrun Timer1 x ELTA - Single Phase Transformer 10amps1 x Time Delay Unit - DT20B3 x Multi Input Run On Timer - 0 - 20min - CFCU1 x 7 Day Programmable TIMECLOCK1 x Egg Crate Grille with G2 Dust panel filter 1 inch- 300x3001 x Egg Crate Grille with Dust panel filter 1 inch- 595x5951 x Single Deflection Grille 400mm with OBD damper1 x Non Vision 150mm x 150mm (Air Transfer) Grille - With Flange - MILL FINISH1 x Mini Diffuser - 100mm1 x Egg Crate Grille with Dust panel filter 1 inch- 300x3002 x Transformer 5 Speed Controller - ATC1-8TK2 x Push Timer Switch - ZA42 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans1 x Helios TSW MCB Amp Transformer speed controller2 x DEF-140T Inlet Guard for the CBT-100N1 x Helios TSW 10 Amp Transformer speed controller2 x Vent Axia ACM 150 inline mixed flow duct fan1 x CMT-2 200/80 1.1KW - Single inlet centrifugal fan direct driven1 x Helios TSW 0.3Amp Compact Transformer speed controller1 x Helios TSW 3 Amp Transformer speed controller2 x Vent Axia ACM 125 inline mixed flow duct fan1 x CS2 Current Switch1 x RDS 7 Helios Transformer Controller With Motor Protection2 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan1 x Remote controller FLEX - for VEKO INT2 x Transformer 5 Speed Controller - ATC1-10TK1 x MV-B Dual Switch for use with Helios HQW plate fans,2 x Insulated extract Plenum 6+12 x Insulated extract Plenum 8+11 x Single phase speed controller by auto-transformer - RMB 3.5 Amp2 x MWS 3 – Transformer Controller With Motor Protection1 x ERR 20/1 Centrifugal inline fan1 x WS - Reversing Switch from Helios Fans1 x FAST-TRACK RANGE 90mm - Adaptor For Distribution Box1 x Vent Axia SC5001 - Speed controller1 x Single phase speed controller by auto-transformer - RMB 8.0 Amp2 x Systemair Save Connect 2.0 Internet Module1 x KMBI 225 Connector rectangular/circular to install on the discharge of CMT1 x MWS 1.5 – Transformer Controller With Motor Protection1 x Isolator Switch - ISOSW1 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)1 x Vent Axia T-Series Controller1 x Two Speed Switch - REGUL-21 x Transformer (silent) speed controller - RE 3.0 Amp
Reviews
DAOSL Back Draft Damper
DAOSL Back Draft Damper
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Look good, works well, except the shaft of the lanellae cuts...