• 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 - ZA41 x Helios ZNE Electronic Fan Overrun Timer1 x Elta 6 Amp Electronic single phase speed controller with TK1 x Single phase speed controller by auto-transformer - RMB 8.0 Amp1 x Multi Input Run On Timer - 0 - 20min - CFCU1 x Time Delay Unit - DT20B1 x TTC-2000 Three phase electric heater controller1 x 7 Day Programmable TIMECLOCK1 x Elta 3 Amp Electronic single phase speed controller with TK3 x Single phase speed controller by auto-transformer - RMB 1.5 Amp3 x CS2 Current Switch2 x Systemair Save Connect 2.0 Internet Module2 x Isolator Switch - ISOSW1 x ACO8AC/EC AutoChangeover panel1 x ACOAS/ AC/EC Auto Changeover 8Amp3 x MWS 1.5 – Transformer Controller With Motor Protection2 x MWS 3 – Transformer Controller With Motor Protection2 x WS - Reversing Switch from Helios Fans1 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE1 x Transformer 5 Speed Controller - ATC1-12TK1 x Elta ACO Panel 149-ACO14E1 x BEAS-control module1 x EC6H - Reversible Group Fan Electronic Controller1 x Access Door for Circular Duct - 400 x 300 - SIZE 451 x EC-Vent control board1 x CONTROL ECOWATT - Basic1 x Electronic extractor fan speed controller - FSC 1.51 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 Single phase speed controller by auto-transformer - RMB 10.0 Amp1 x TG-K3/NTC10-01 - Duct temperature sensor1 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted1 x EM30-24 Electro-Mechanical Control Panel1 x Duct Termination with Mesh - 710mm1 x CBS-60 Outlet Flange for CSB/CBT-601 x TUNE-R-200-3-M1 - Control Damper1 x Two Speed Switch - REGUL-21 x Vent Axia Silent 100T (TIMER)1 x TD Mixvent 800/200 EEXEIIT31 x TG-K Duct temperature sensor1 x Elta Variable Speed Drive IP66 - 0.37KW (1ph to 3ph)1 x RDH FLEX-SQUARE - ADH/RDH 04501 x Helios HQW-630/4 - IP551 x Elta ACO Panel 149-ACO18B1 x U-EK plastic housing IP65 - for use with the U-EK230E Motor Protection1 x Multiflow SMB550/4-1AC1 x Vent Axia ACM 125 inline mixed flow duct fan1 x RDS 7 Helios Transformer Controller With Motor Protection
Reviews
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DAOSL Back Draft Damper
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Look good, works well, except the shaft of the lanellae cuts...