• 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

2 x Systemair Save Connect 2.0 Internet Module1 x TTC-2000 Three phase electric heater controller1 x Single phase speed controller by auto-transformer - RMB 1.5 Amp1 x ACOAS/ AC/EC Auto Changeover 8Amp3 x Isolator Switch - ISOSW2 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)1 x Elta ACO Panel 149-ACO14E1 x EC-Vent control board1 x CONTROL ECOWATT - Basic2 x Single phase speed controller by auto-transformer - RMB 8.0 Amp1 x ACO 149-ACO1/EDV1 x EM30-24 Electro-Mechanical Control Panel1 x CS2 Current Switch1 x U-EK plastic housing IP65 - for use with the U-EK230E Motor Protection1 x Elta 6 Amp Electronic single phase speed controller with TK1 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 CMT2 x WS - Reversing Switch from Helios Fans1 x TG-K3/NTC10-01 - Duct temperature sensor1 x Single phase speed controller by auto-transformer - RMB 3.5 Amp1 x Two Speed Switch - REGUL-22 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE1 x EC-Vent Room Unit1 x DEF-140T Inlet Guard for the CBT-100N1 x Elta 3 Amp Electronic single phase speed controller with TK1 x MWS 1.5 – Transformer Controller With Motor Protection1 x RDS 7 Helios Transformer Controller With Motor Protection1 x Transformer (silent) speed controller - RE 1.5 Amp1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5002 x Elta Variable Speed Drive IP66 - 0.37KW (1ph to 3ph)2 x Elta Variable Speed Drive IP66 - 0.75KW1 x EC6H - Reversible Group Fan Electronic Controller1 x Vent Axia Silent 100T (TIMER)1 x Transformer Speed Control - RTRE- 12.0Amp2 x Electronic extractor fan speed controller - FSC 1.51 x Transformer Speed Control - RTRE- 1.5Amp1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6302 x Speed Controller - REB101 x Easy-fix termination kit - High Rise Ventilator - EFT1 x TG-R room temperature sensor1 x MTP 10, 10K, Speed control2 x CBT-100N Centrifugal1 x CMT-2 180/75 0.75KW - Single inlet centrifugal fan with inlet and outlet flange connections - 200mm1 x Elta ACO Panel 149-ACO18B2 x Envirovent G4 Filter - SL-G4/F71 x Vent Axia T-Series Controller2 x Transformer Speed Control - RTRE- 7.0Amp1 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt VR1 x Helios HQW-200/2 - IP551 x CBM Low Pressure Centrifugal Fan - CBM 9/9 4 Pole 550watt 3V (3-Speed)1 x Helios HQW-630/4 - IP551 x Elta Variable Speed Drive IP66 - 2.2KW1 x Transformer (silent) speed controller - RE 3.0 Amp1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3551 x Transformer 5 Speed Controller - ATC1-12TK1 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted1 x CBS-60 Outlet Flange for CSB/CBT-601 x EM30-24 Control Panel Commissioning Service1 x CBA-60 Inlet Flange for CBT-601 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans1 x RDH FLEX-SQUARE - ADH/RDH 04501 x REB-CVF 0-10v Controller
BD7/7 centrifugal M4 0.13Kw
BD7/7 centrifugal M4 0.13Kw
£ 345.00 now £ 300.00
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