• 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 Vent Axia ACM 100 inline mixed flow duct fan1 x ACO8AC/EC AutoChangeover panel1 x ACOAS/ AC/EC Auto Changeover 8Amp1 x EC-Vent control board1 x Easy-fix termination kit - High Rise Ventilator - EFT1 x EM30-24 Control Panel Commissioning Service1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3551 x ELTA - Single Phase Transformer 2amps3 x Electronic extractor fan speed controller - FSC 1.52 x EC6H - Reversible Group Fan Electronic Controller1 x Elta 2 Amp Electronic single phase speed controller.3 x Elta 3 Amp Electronic single phase speed controller with TK3 x Elta 6 Amp Electronic single phase speed controller with TK2 x Airvent ceiling fan controller1 x ELTA - Single Phase Transformer 8amps1 x EFSC-3N- Single Phase Speed Control1 x ELTA - Single Phase Transformer 16amps1 x ELTA - Single Phase Transformer 12amps1 x ELTA - Single Phase Transformer 4amps1 x Elta 6 Amp Electronic single phase speed controller.1 x ELTA - Single Phase Transformer 10amps1 x Run On Timer - 5s - 4hrs - RT5A2 x Remote Timer Control - 13512 x Isolator Switch - ISOSW1 x Single phase speed controller by auto-transformer - RMB 3.5 Amp3 x Push Timer Switch - ZA41 x Helios ZNE Electronic Fan Overrun Timer3 x Multi Input Run On Timer - 0 - 20min - CFCU1 x Time Delay Unit - DT20B2 x BEAS-control module1 x 7 Day Programmable TIMECLOCK2 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)1 x TTC-2000 Three phase electric heater controller1 x Speed Controller - REB51 x REB-CVF 0-10v Controller2 x PIR Sensor - PIR21 x PIR Sensor - PIR41 x Elta Wall Cowl SWC56/631 x UB47- Universal Insulated Terminal4 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan2 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE1 x REU 1.5amp Speed control - Two Speed Five-Step Transformer - Trickle and Boost1 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans2 x Helios TSW 3 Amp Transformer speed controller3 x Vent Axia ACM 150 inline mixed flow duct fan1 x Elta 3 Amp Electronic single phase speed controller.1 x RDS 11 Helios Transformer Controller With Motor Protection1 x AIRVENT speed control - AIR4019611 x Elta Variable Speed Drive IP66 - 0.37KW (1ph to 3ph)3 x Systemair Save Connect 2.0 Internet Module1 x EFSC-6N- Single Phase Speed Control2 x Transformer speed controller - ATC1 - 1.5 Amps3 x CS2 Current Switch2 x Single phase speed controller by auto-transformer - RMB 1.5 Amp2 x TG-K Duct temperature sensor2 x Envirovent G4 Filter - SL-G4/F71 x WS - Reversing Switch from Helios Fans1 x Transformer (silent) speed controller - RE 3.0 Amp2 x TG-R room temperature sensor1 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted2 x Elta Variable Speed Drive IP66 - 0.75KW1 x U-EK plastic housing IP65 - for use with the U-EK230E Motor Protection1 x Speed Controller - REB1-N1 x Transformer Speed Control - RTRE- 7.0Amp2 x MTP 10, 10K, Speed control1 x CBM 9-9 550w 4P VR (Open Motor)1 x Silent 100 Window Kit - windowS1 x MTS10- extractor fan 3 step switch1 x Transformer Speed Control - RTRE- 1.5Amp1 x TG-K Duct temperature sensor1 x VTR 300 STD Filter Kit1 x Speed Controller - REB12 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan1 x Remote controller FLEX - for VEKO INT1 x Helios TSW 7.5 Amp Transformer speed controller2 x Transformer 5 Speed Controller - ATC1-8TK2 x Transformer 5 Speed Controller - ATC1-4TK2 x Three Phase Transformer controllers - RMT 1.5 Amp1 x Transformer 5 Speed Controller - ATC1-10TK1 x Helios TSW 1.5 Amp Transformer speed controller1 x Vent Axia ACM 200 inline mixed flow duct fan2 x COM-33 x Vent Axia ACM 125 inline mixed flow duct fan2 x MWS 3 – Transformer Controller With Motor Protection2 x Single phase speed controller by auto-transformer - RMB 8.0 Amp1 x Two Speed Switch - REGUL-22 x Helios HQW-200/2 - IP552 x Vent Axia T-Series Controller2 x Helios HQW-630/4 - IP551 x TG-K3/NTC10-01 - Duct temperature sensor1 x Transformer Speed Control - RTRE- 12.0Amp1 x Transformer (silent) speed controller - RE 1.5 Amp1 x CONTROL ECOWATT - Basic1 x MWS 1.5 – Transformer Controller With Motor Protection1 x EM30-24 Electro-Mechanical Control Panel1 x Speed Controller - REB10
BD9/9 centrifugal M4 0.35Kw
BD9/9 centrifugal M4 0.35Kw
£ 399.00 now £ 350.00
Reviews
TD-SILENT 350/125
TD-SILENT 350/125
£ 178.68

Excellent low noise fan, I've got one unit running years and...