• 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 CS2 Current Switch1 x Time Delay Unit - DT20B1 x Multi Input Run On Timer - 0 - 20min - CFCU1 x Elta 3 Amp Electronic single phase speed controller with TK4 x Elta 6 Amp Electronic single phase speed controller with TK2 x COM-31 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)3 x Single phase speed controller by auto-transformer - RMB 1.5 Amp2 x Single phase speed controller by auto-transformer - RMB 8.0 Amp1 x 7 Day Programmable TIMECLOCK1 x TTC-2000 Three phase electric heater controller1 x Isolator Switch - ISOSW1 x MWS 3 – Transformer Controller With Motor Protection1 x Helios HQW-200/2 - IP551 x ACO8AC/EC AutoChangeover panel1 x ACOAS/ AC/EC Auto Changeover 8Amp2 x MWS 1.5 – Transformer Controller With Motor Protection2 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted1 x Transformer 5 Speed Controller - ATC1-12TK1 x Elta ACO Panel 149-ACO14E1 x Envirovent G4 Filter - SL-G4/F72 x Systemair Save Connect 2.0 Internet Module1 x CONTROL ECOWATT - Basic1 x EC6H - Reversible Group Fan Electronic Controller2 x WS - Reversing Switch from Helios Fans1 x Single phase speed controller by auto-transformer - RMB 10.0 Amp1 x EC-Vent control board1 x EM30-24 Electro-Mechanical Control Panel1 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE2 x Vent Axia Silent 100T (TIMER)1 x TG-K3/NTC10-01 - Duct temperature sensor1 x Elta Variable Speed Drive IP66 - 0.75KW1 x Helios HQW-630/4 - IP551 x ACO 149-ACO1/EDV1 x Three Phase Transformer controllers - RMT 1.5 Amp1 x Vent Axia T-Series Controller2 x Transformer (silent) speed controller - RE 1.5 Amp1 x Elta Variable Speed Drive IP66 - 0.37KW (1ph to 3ph)1 x Transformer (silent) speed controller - RE 3.0 Amp1 x Elta ACO Panel 149-ACO18B1 x Isolator Switch - EFF-ISO1 x Helios HQW-200/4 - IP551 x CBS-60 Outlet Flange for CSB/CBT-601 x TD Mixvent 800/200 EEXEIIT31 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 Skyflow SSR Horizontal Roof Cowl SSR31/35BS1 x TUNE-R-200-3-M1 - Control Damper1 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt VR1 x DDMP 10-08 3F 2210W M6A4 DG02 x TG-R room temperature sensor1 x REE-1 Electronic Speed Controller1 x Speed controller with Reverse - REB-1R1 x Airvent ceiling fan controller1 x EC-Vent Room Unit1 x Elta 6 Amp Electronic single phase speed controller.1 x Multiflow SMB550/4-1AC1 x U-EK plastic housing IP65 - for use with the U-EK230E Motor Protection1 x KMBI 225 Connector rectangular/circular to install on the discharge of CMT1 x DEF-140T Inlet Guard for the CBT-100N1 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan1 x Transformer Speed Control - RTRE- 12.0Amp1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6301 x Helios HQW-250/4 - IP551 x Biflow SB400-CON2-3 - High Temperature Bifurcated Fan1 x Speed Controller - REB51 x PIR Sensor - PIR2
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%...