• 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 KMBI 250 Connector rectangular/circular to install on the discharge of CMT2 x Elta Variable Speed Drive IP66 - 2.2KW1 x Elta Variable Speed Drive IP66 - 7.5KW1 x FU 15 40 Frequency Inverter1 x Helios TSD 5.5 Transformer Speed Control (400v)1 x Helios TSD 3.0 Transformer Speed Control (400v)1 x FU 075 52 Frequency Inverter (IP20)1 x FRQ5-4A V2 Inverter Speed Controller1 x Frequency converter FU 075 14 - IP661 x FU 22 25 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 0.75KW1 x Frequency converter RUCK - FU 075 201 x FU 15 16 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 5.5KW1 x FRQ5-10A Inverter Speed controller1 x Elta Variable Speed Drive IP66 - 1.5KW1 x Elta Variable Speed Drive IP66 - 2.2KW (1ph to 3ph)1 x Helios - FIUK-11KW 24.0A - FREQUENCY INVERTER1 x ELTA - Three Phase Transformer 3amps1 x ATEX rated 3-phase Speed Control - R-DK4 KT (EX)1 x FU 22 04 Frequency Inverter1 x Frequency converter RUCK - FU 075 211 x Frequency converter RUCK - FU 075 381 x ELTA - Three Phase Transformer 10amps1 x FU 075 04 Frequency Inverter (IP20)1 x Elta 10 Amp Electronic single phase speed controller.1 x ELTA - Single Phase Transformer 2amps2 x Electronic extractor fan speed controller - FSC 1.51 x EC6H - Reversible Group Fan Electronic Controller1 x Elta 2 Amp Electronic single phase speed controller.1 x Airvent ceiling fan controller1 x Elta 3 Amp Electronic single phase speed controller with TK1 x ELTA - Single Phase Transformer 8amps1 x ELTA - Single Phase Transformer 12amps1 x Elta 3 Amp Electronic single phase speed controller.2 x Elta 6 Amp Electronic single phase speed controller with TK1 x ELTA - Single Phase Transformer 16amps1 x EFSC-3N- Single Phase Speed Control2 x COM-31 x Elta Variable Speed Drive IP66 - 0.37KW (1ph to 3ph)1 x ELTA - Single Phase Transformer 4amps1 x Elta Variable Speed Drive IP66 - 0.75KW (1ph to 3ph)1 x EFSC-6N- Single Phase Speed Control1 x Elta 6 Amp Electronic single phase speed controller.1 x Elta Variable Speed Drive IP66 - 1.5KW (1ph to 3ph)2 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan1 x Run On Timer - 5s - 4hrs - RT5A2 x Remote Timer Control - 13512 x Push Timer Switch - ZA41 x Helios ZNE Electronic Fan Overrun Timer1 x ELTA 49S-A1729 over run timer1 x Time Delay Unit - DT20B2 x Multi Input Run On Timer - 0 - 20min - CFCU1 x 7 Day Programmable TIMECLOCK1 x TTC-2000 Three phase electric heater controller1 x ACO8AC/EC AutoChangeover panel1 x ACOAS/ AC/EC Auto Changeover 8Amp1 x Elta ACO Panel 149-ACO14E1 x EM30-24 Electro-Mechanical Control Panel1 x CONTROL ECOWATT - Basic1 x EC-Vent control board1 x ACO 149-ACO1/EDV1 x EM10-24v Control Panel for FSD-C dampers1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6301 x Elta ACO Panel 149-ACO18B1 x Systemair Save Connect 2.0 Internet Module1 x EM30-24 Control Panel Commissioning Service1 x U-EK plastic housing IP65 - for use with the U-EK230E Motor Protection1 x Easy-fix termination kit - High Rise Ventilator - EFT1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5001 x MTP 10, 10K, Speed control1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3551 x Elta Wall Cowl SWC56/631 x GRA-100 External Grill by S&P1 x Elta Louvre Shutter - 400mm1 x Elta Wall Cowl SWC25/311 x Elta Wall Cowl SWC35/401 x Egg Crate Grille with G2 Dust panel filter 1 inch- 300x3001 x Elta Wall Cowl SWC45/501 x Jet Cowl - 315mm1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 7101 x Three Phase Transformer controllers - RMT 1.5 Amp1 x ELTA - Single Phase Transformer 10amps1 x REB-CVF 0-10v Controller1 x Helios HQW-400/4 - IP551 x Quietflow SQS400-1ECL - Centrifugal Box Fan1 x Remote controller FLEX - for VEKO INT2 x Vent Axia ACM 150 inline mixed flow duct fan1 x Helios TSW 7.5 Amp Transformer speed controller1 x Helios TSW 3 Amp Transformer speed controller1 x Vent Axia ACM 200 inline mixed flow duct fan2 x Vent Axia ACM 100 inline mixed flow duct fan1 x RDS 11 Helios Transformer Controller With Motor Protection1 x KMBI 225 Connector rectangular/circular to install on the discharge of CMT1 x Isolator Switch - ISOSW1 x TG-K Duct temperature sensor1 x Single phase speed controller by auto-transformer - RMB 1.5 Amp1 x Single phase speed controller by auto-transformer - RMB 3.5 Amp1 x BEAS-control module2 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)1 x Speed Controller - REB51 x Transformer (silent) speed controller - RE 1.5 Amp1 x RDH FLEX-SQUARE - ADH/RDH 04501 x FAST-TRACK RANGE 75mm - Click Ring (1 bag of 10)1 x Speed Controller - REB101 x Speed Controller - REB61 x Speed Controller - REB1-N1 x Transformer Speed Control - RTRE- 7.0Amp1 x UB47- Universal Insulated Terminal1 x Helios TSW 1.5 Amp Transformer speed controller1 x CMT-2 200/80 1.1KW - Single inlet centrifugal fan direct driven1 x Transformer (silent) speed controller - RE 5.0 Amp1 x REE-2 Electronic Speed Controller1 x DDMP 12-12 3F 1810W M6A4 DG01 x Vent Axia Silent 100T (TIMER)1 x Bathroom Fan -Envirovent- Silent 100 T (Timer Model)1 x CS2 Current Switch1 x Vent Axia ACM 125 inline mixed flow duct fan1 x MWS 3 – Transformer Controller With Motor Protection
Reviews
Duct Mounted Inline Filter - EU4
Duct Mounted Inline Filter - EU4
£ 44.99

Well made and robust, but it was not use for my application ...