• 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 Switch2 x Helios HQW-200/2 - IP551 x TG-K Duct temperature sensor1 x Single phase speed controller by auto-transformer - RMB 1.5 Amp1 x Isolator Switch - ISOSW3 x Elta 6 Amp Electronic single phase speed controller with TK1 x EC6H - Reversible Group Fan Electronic Controller2 x Elta 3 Amp Electronic single phase speed controller with TK3 x WS - Reversing Switch from Helios Fans1 x Two Speed Switch - REGUL-22 x TG-K3/NTC10-01 - Duct temperature sensor1 x BEAS-control module3 x Speed Controller - REB101 x Skyflow SSR Horizontal Roof Cowl SSR31/35B1 x Elta Variable Speed Drive IP66 - 0.37KW (1ph to 3ph)1 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted2 x Transformer (silent) speed controller - RE 1.5 Amp1 x Speed Controller - REB52 x Transformer Speed Control - RTRE- 7.0Amp2 x Helios HQW-200/4 - IP551 x Skyflow SSR Horizontal Roof Cowl SSR31/35BS1 x REE-1 Electronic Speed Controller1 x TUNE-R-200-3-M1 - Control Damper1 x UB47- Universal Insulated Terminal2 x Single phase speed controller by auto-transformer - RMB 8.0 Amp1 x Single phase speed controller by auto-transformer - RMB 10.0 Amp1 x Envirovent G4 Filter - SL-G4/F71 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt CVR1 x Multiflow SMB550/4-1AC2 x Commercial Single or 3 phase Fan Reversing Switch - RS12 x RDH FLEX-SQUARE - ADH/RDH 04501 x EBM-Papst D4E225-BC01-17 Double inlet1 x Elta 6 Amp Electronic single phase speed controller.1 x TG-R room temperature sensor1 x SG-200 Fan Guard for the HQW 2001 x TD EVO-100 PF ECOWATT - Environmentally Friendly Energy Efficient Inline Fan1 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE1 x MWS 1.5 – Transformer Controller With Motor Protection1 x RD35S-4DW.6W.3L - 122297 (Three Phase)1 x Comefri - TLZ 450 R - High Performance Scroll Fan1 x TUNE-R-200-3-M2 - Control Damper1 x Transformer (silent) speed controller - RE 5.0 Amp1 x TUNE-R-200-3-M0 - Control Damper (NO ACTUATOR)1 x CBA-100 Inlet Flange for CBT-1001 x Helios ESA-1 Surface mounted Speed Control 1amp1 x Duct Termination with Mesh - 450mm1 x Elta Variable Speed Drive IP66 - 0.75KW1 x Helios HQW-315/4 - IP551 x Eco-Loft Positive Input Ventilation System - PIV Loft Mounted -EVL-H1 x Electronic extractor fan speed controller - FSC 1.5
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 ...