• 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 Elta Variable Speed Drive IP66 - 7.5KW1 x Elta Variable Speed Drive IP66 - 2.2KW1 x FRQ-10A V2 Inverter Speed controller1 x FRQ5-4A V2 Inverter Speed Controller1 x FU 15 40 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 0.75KW1 x Frequency converter RUCK - FU 075 201 x Frequency converter FU 075 14 - IP661 x Elta Variable Speed Drive IP66 - 1.5KW1 x FRQ5-10A Inverter Speed controller1 x FU 15 16 Frequency Inverter1 x ATEX rated 3-phase Speed Control - R-DK4 KT (EX)1 x ELTA - Three Phase Transformer 10amps1 x Elta Variable Speed Drive IP66 - 2.2KW (1ph to 3ph)1 x FU 075 04 Frequency Inverter (IP20)1 x Frequency converter RUCK - FU 075 211 x FU 22 04 Frequency Inverter1 x Helios - FIUK-11KW 24.0A - FREQUENCY INVERTER2 x Push Timer Switch - ZA41 x Helios ZNE Electronic Fan Overrun Timer1 x Time Delay Unit - DT20B3 x Multi Input Run On Timer - 0 - 20min - CFCU1 x 7 Day Programmable TIMECLOCK3 x Vent Axia ACM 150 inline mixed flow duct fan3 x Three Phase Transformer controllers - RMT 1.5 Amp1 x Run On Timer - 5s - 4hrs - RT5A2 x KMBI 315 Connector rectangular/circular to install on the discharge of CMT1 x TTC-2000 Three phase electric heater controller1 x ACOAS/ AC/EC Auto Changeover 8Amp1 x ACO8AC/EC AutoChangeover panel1 x Elta ACO Panel 149-ACO14E1 x EC-Vent control board2 x MWS 1.5 – Transformer Controller With Motor Protection1 x CONTROL ECOWATT - Basic1 x ACO 149-ACO1/EDV1 x Envirovent 4 Way Remote Control Switch - SWHBKRF-41 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans1 x Isolator Switch - ISOSW4 x COM-32 x WS - Reversing Switch from Helios Fans1 x BEAS-control module1 x EM30-24 Electro-Mechanical Control Panel1 x Transformer speed controller - ATC1 - 1.5 Amps1 x JSR 200 Painted RAL50183 x Elta 6 Amp Electronic single phase speed controller with TK1 x Round ceiling diffuser 200mm2 x Vent Axia ACM 100 inline mixed flow duct fan1 x ELTA - Single Phase Transformer 10amps2 x Vent Axia ACM 125 inline mixed flow duct fan1 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan2 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan1 x NKS-D swirl diffuser v-300 x 300mm1 x ELTA - Single Phase Transformer 12amps1 x AIRVENT speed control - AIR4019611 x Round ceiling diffuser 250mm1 x EFSC-6N- Single Phase Speed Control1 x Elta 6 Amp Electronic single phase speed controller.1 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)1 x Elta 3 Amp Electronic single phase speed controller.2 x MV-B Dual Switch for use with Helios HQW plate fans,1 x Single phase speed controller by auto-transformer - RMB 1.5 Amp2 x Electronic extractor fan speed controller - FSC 1.51 x KMBI 225 Connector rectangular/circular to install on the discharge of CMT1 x TG-K Duct temperature sensor1 x Helios TSW 0.3Amp Compact Transformer speed controller1 x Curved Blade Grille 600x600 (2way blow)1 x Single phase speed controller by auto-transformer - RMB 3.5 Amp1 x Envirovent G4 Filter - SL-G4/F71 x Elta Variable Speed Drive IP66 - 0.37KW (1ph to 3ph)3 x Systemair Save Connect 2.0 Internet Module1 x Remote controller FLEX - for VEKO INT1 x Transformer 5 Speed Controller - ATC1-10TK1 x Transformer 5 Speed Controller - ATC1-8TK1 x Helios TSW 3 Amp Transformer speed controller1 x Transformer 5 Speed Controller - ATC1-12TK1 x CS2 Current Switch1 x Single phase speed controller by auto-transformer - RMB 8.0 Amp1 x Elta 3 Amp Electronic single phase speed controller with TK1 x Helios HQW-630/4 - IP551 x REE-1 Electronic Speed Controller1 x U-EK plastic housing IP65 - for use with the U-EK230E Motor Protection2 x EC-Vent Room Unit1 x Remote Timer Control - 13511 x Elta ACO Panel 149-ACO18B1 x Two Speed Switch - REGUL-21 x TG-K3/NTC10-01 - Duct temperature sensor1 x Transformer (silent) speed controller - RE 3.0 Amp1 x Easy-fix termination kit - High Rise Ventilator - EFT1 x Helios TSW MCB Amp Transformer speed controller
BD9/9 centrifugal M4 0.35Kw
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£ 399.00 now £ 350.00
Reviews
Transformer (silent) speed controller - RE 1.5 Amp
Transformer (silent) speed controller - RE 1.5 Amp
£ 132.29

Unbelievable! With TDmixvent500: noise reduction minimum 50%...