• 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 Round ceiling diffuser 300mm1 x Round ceiling diffuser 200mm1 x Transformer 5 Speed Controller - ATC1-4TK3 x Push Timer Switch - ZA41 x Balance S Diffuser - NO RING - 100mm1 x Round ceiling diffuser 250mm1 x Helios TSW MCB Amp Transformer speed controller3 x Three Phase Transformer controllers - RMT 1.5 Amp1 x Round ceiling diffuser 350mm1 x Vent Axia ACM 150 inline mixed flow duct fan1 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans4 x Vent Axia ACM 125 inline mixed flow duct fan2 x CS2 Current Switch1 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)1 x Temperature Fan Speed Controller - ATCP4-WMS1 x Helios TSW 3 Amp Transformer speed controller2 x COM-32 x Isolator Switch - ISOSW2 x Single phase speed controller by auto-transformer - RMB 8.0 Amp1 x TG-K Duct temperature sensor1 x Elta Variable Speed Drive IP66 - 0.75KW1 x Multiflow SMB550/4-1AC2 x MWS 1.5 – Transformer Controller With Motor Protection1 x Remote Timer Control - 13511 x ACO8AC/EC AutoChangeover panel3 x Elta 6 Amp Electronic single phase speed controller with TK1 x Helios ZNE Electronic Fan Overrun Timer1 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted1 x Airvent ceiling fan controller1 x MTP 10, 10K, Speed control1 x Helios HQW-200/4 - IP551 x Transformer (silent) speed controller - RE 3.0 Amp1 x Time Delay Unit - DT20B2 x EC6H - Reversible Group Fan Electronic Controller2 x Elta Variable Speed Drive IP66 - 0.37KW (1ph to 3ph)1 x TTC-2000 Three phase electric heater controller2 x Helios PU10 Speed Potentiometer (Flush Mounted)1 x Multi Input Run On Timer - 0 - 20min - CFCU1 x 7 Day Programmable TIMECLOCK2 x TG-K3/NTC10-01 - Duct temperature sensor1 x Quietflow SQS400-1ECL - Centrifugal Box Fan1 x ACOAS/ AC/EC Auto Changeover 8Amp
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%...