• 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 Single phase speed controller by auto-transformer - RMB 1.5 Amp1 x CS2 Current Switch3 x COM-33 x Elta 3 Amp Electronic single phase speed controller with TK3 x Elta 6 Amp Electronic single phase speed controller with TK3 x Single phase speed controller by auto-transformer - RMB 8.0 Amp2 x TG-K Duct temperature sensor1 x Single phase speed controller by auto-transformer - RMB 3.5 Amp2 x MWS 1.5 – Transformer Controller With Motor Protection2 x BEAS-control module2 x Helios HQW-200/2 - IP552 x WS - Reversing Switch from Helios Fans2 x EC6H - Reversible Group Fan Electronic Controller1 x Transformer 5 Speed Controller - ATC1-12TK2 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted1 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE1 x Systemair Save Connect 2.0 Internet Module1 x KMBI 180 Connector rectangular/circular to install on the discharge of CMT3 x Helios HQW-200/4 - IP551 x Electronic extractor fan speed controller - FSC 1.51 x Silent 100 Window Kit - windowS1 x Elta Variable Speed Drive IP66 - 0.37KW (1ph to 3ph)3 x Vent Axia T-Series Controller2 x Helios HQW-630/4 - IP551 x DEF-140T Inlet Guard for the CBT-100N2 x TG-K3/NTC10-01 - Duct temperature sensor1 x Isolator Switch - EFF-ISO2 x SG-200 Fan Guard for the HQW 2001 x RDH FLEX-SQUARE - ADH/RDH 04501 x Vent Axia Silent 100T (TIMER)1 x DDMP 10-08 3F 2210W M6A4 DG01 x SAVE VSR 300 heat recovery unit1 x Quietflow SQS400-1ECL - Centrifugal Box Fan1 x Transformer Speed Control - RTRE- 7.0Amp2 x Skyflow SSR Horizontal Roof Cowl SSR31/35BS2 x MTP 10, 10K, Speed control1 x Elta Variable Speed Drive IP66 - 0.75KW1 x 100mm Round Connector with Damper2 x TG-R room temperature sensor1 x Contactor Interface Station - CI91 x Remote Timer Control - 13511 x CBS-60 Outlet Flange for CSB/CBT-601 x Speed Controller - REB53 x Commercial Single or 3 phase Fan Reversing Switch - RS12 x Transformer (silent) speed controller - RE 3.0 Amp1 x PIR Sensor - PIR21 x Speed Controller - REB101 x CFI In-line 425 - Carbon Filter2 x Two Speed Switch - REGUL-21 x Envirovent G4 Filter - SL-G4/F71 x Flakt Woods ME 1.6 speed controller 6.0amp - EA9011592 x Airvent ceiling fan controller1 x DDMP 12-12 3F 1810W M6A4 DG01 x RD35S-4DW.6W.3L - 122297 (Three Phase)1 x Round ceiling diffuser 200mm1 x Elta 6 Amp Electronic single phase speed controller.1 x MV-B Dual Switch for use with Helios HQW plate fans,1 x Helios HQW-250/4 - IP551 x Comefri - TLZ 450 R - High Performance Scroll Fan1 x Transformer Speed Control - RTRE- 12.0Amp
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%...