• 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 Isolator Switch - ISOSW1 x Helios ZNE Electronic Fan Overrun Timer1 x Elta 3 Amp Electronic single phase speed controller with TK1 x Time Delay Unit - DT20B1 x 7 Day Programmable TIMECLOCK3 x Multi Input Run On Timer - 0 - 20min - CFCU2 x CS2 Current Switch2 x Elta 6 Amp Electronic single phase speed controller with TK1 x TTC-2000 Three phase electric heater controller1 x ACO8AC/EC AutoChangeover panel1 x ACOAS/ AC/EC Auto Changeover 8Amp1 x Single phase speed controller by auto-transformer - RMB 8.0 Amp1 x Single phase speed controller by auto-transformer - RMB 1.5 Amp2 x TG-K Duct temperature sensor1 x Helios HQW-200/2 - IP551 x BEAS-control module1 x Single phase speed controller by auto-transformer - RMB 3.5 Amp1 x Commercial Single or 3 phase Fan Reversing Switch - RS11 x Elta ACO Panel 149-ACO14E1 x Transformer 5 Speed Controller - ATC1-12TK1 x Systemair Save Connect 2.0 Internet Module2 x TG-K3/NTC10-01 - Duct temperature sensor1 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted1 x CONTROL ECOWATT - Basic1 x EM30-24 Electro-Mechanical Control Panel1 x EC-Vent control board1 x Single phase speed controller by auto-transformer - RMB 10.0 Amp1 x MWS 1.5 – Transformer Controller With Motor Protection1 x Elta Variable Speed Drive IP66 - 0.75KW1 x ACO 149-ACO1/EDV2 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan1 x EC6H - Reversible Group Fan Electronic Controller1 x Elta ACO Panel 149-ACO18B1 x Speed Controller - REB101 x Elta Variable Speed Drive IP66 - 0.37KW (1ph to 3ph)1 x WS - Reversing Switch from Helios Fans
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%...