• 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 Helios TSW 7.5 Amp Transformer speed controller1 x Round ceiling diffuser 200mm1 x ELTA - Single Phase Transformer 10amps1 x Round ceiling diffuser 300mm1 x Balance S Diffuser - NO RING - 100mm1 x PCA Diffuser - PCA-2501 x Round ceiling diffuser 250mm1 x Transformer 5 Speed Controller - ATC1-8TK3 x Helios TSW 3 Amp Transformer speed controller1 x Transformer 5 Speed Controller - ATC1-10TK3 x Transformer 5 Speed Controller - ATC1-4TK1 x Round ceiling diffuser 350mm1 x Vent Axia ACM 150 inline mixed flow duct fan2 x Helios TSW MCB Amp Transformer speed controller3 x Push Timer Switch - ZA42 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)5 x Vent Axia ACM 125 inline mixed flow duct fan1 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans2 x Temperature Fan Speed Controller - ATCP4-WMS3 x CS2 Current Switch2 x Three Phase Transformer controllers - RMT 1.5 Amp2 x Vent Axia ACM 100 inline mixed flow duct fan1 x Elta Variable Speed Drive IP66 - 2.2KW1 x MV-B Dual Switch for use with Helios HQW plate fans,3 x Single phase speed controller by auto-transformer - RMB 1.5 Amp1 x Helios TSW 1.5 Amp Transformer speed controller1 x Single phase speed controller by auto-transformer - RMB 8.0 Amp1 x Remote Timer Control - 13511 x MWS 1.5 – Transformer Controller With Motor Protection1 x TG-K3/NTC10-01 - Duct temperature sensor1 x WS - Reversing Switch from Helios Fans1 x EC6H - Reversible Group Fan Electronic Controller1 x Multiflow SMB550/4-1AC
Reviews
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I have a loft mount extractor fan which was very noisy. I ...