• Model:SSDL250-1EC

Singleflow SSDL250-1EC

£ 939.09 (excl. VAT)

£ 1,126.91 (inc. VAT)


Singleflow SSDL fans are suitable for external mounting. The range incorporates advanced backward curved impellers.

All models are designed for direct connection to standard diameter flexible or rigid circular ducting with long spigots.

Integrated commissioning control allows single speed selection and also limits maximum speed if used with an external potentiometer.

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.

EC motors provide precise speed control via potentiometer, BMS or Elta Fans DCV control. Reduced fan speeds can provide significant cost-savings through lower energy consumption in both mechanical energy of motors and also on the conditioning of replacement air.

Each SSDL has a 12 month warranty.

Please refer to the data sheet for technical specifications.
PDF Files


Data sheet

1 x Helios TSW 0.3Amp Compact Transformer speed controller1 x Helios TSW MCB Amp Transformer speed controller2 x Helios TSW 1.5 Amp Transformer speed controller1 x Transformer 5 Speed Controller - ATC1-4TK2 x Push Timer Switch - ZA42 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)3 x CS2 Current Switch1 x Helios ZNE Electronic Fan Overrun Timer5 x Single phase speed controller by auto-transformer - RMB 1.5 Amp1 x Time Delay Unit - DT20B2 x Multi Input Run On Timer - 0 - 20min - CFCU3 x MWS 3 – Transformer Controller With Motor Protection2 x COM-31 x TTC-2000 Three phase electric heater controller1 x ACO8AC/EC AutoChangeover panel2 x MV-B Dual Switch for use with Helios HQW plate fans,2 x Isolator Switch - ISOSW1 x Elta ACO Panel 149-ACO14E4 x Elta 6 Amp Electronic single phase speed controller with TK1 x CONTROL ECOWATT - Basic1 x EM30-24 Electro-Mechanical Control Panel1 x EC-Vent control board1 x ACO 149-ACO1/EDV1 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted2 x Systemair Save Connect 2.0 Internet Module3 x MWS 1.5 – Transformer Controller With Motor Protection1 x TG-K Duct temperature sensor1 x Elta ACO Panel 149-ACO18B1 x BEAS-control module2 x Single phase speed controller by auto-transformer - RMB 8.0 Amp1 x Vent Axia ACM 125 inline mixed flow duct fan1 x Transformer 5 Speed Controller - ATC1-12TK1 x Helios HQW-200/2 - IP551 x TG-K3/NTC10-01 - Duct temperature sensor1 x EC-Vent Room Unit2 x EC6H - Reversible Group Fan Electronic Controller1 x Commercial Single or 3 phase Fan Reversing Switch - RS11 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6301 x Elta Variable Speed Drive IP66 - 0.75KW4 x Transformer (silent) speed controller - RE 3.0 Amp1 x Helios HQW-630/4 - IP551 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan1 x Single phase speed controller by auto-transformer - RMB 3.5 Amp2 x Elta Variable Speed Drive IP66 - 0.37KW (1ph to 3ph)3 x WS - Reversing Switch from Helios Fans2 x Multiflow SMB550/4-1AC1 x Skyflow SSR Horizontal Roof Cowl SSR31/35BS2 x Helios HQW-200/4 - IP552 x Airvent ceiling fan controller2 x Vent Axia T-Series Controller1 x MTP 10, 10K, Speed control1 x Quietflow SQS400-1ECL - Centrifugal Box Fan1 x TG-R room temperature sensor1 x Isolator Switch - EFF-ISO2 x Electronic extractor fan speed controller - FSC 1.52 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt CVR1 x PIR Sensor - PIR21 x Helios HQW-250/4 - IP551 x SG-200 Fan Guard for the HQW 2001 x Vent Axia Silent 100T (TIMER)1 x Flakt Woods ME 1.6 speed controller 6.0amp - EA9011591 x Speed Controller - REB51 x Helios PU10 Speed Potentiometer (Flush Mounted)2 x Speed Controller - REB102 x Transformer Speed Control - RTRE- 7.0Amp1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3551 x REE-1 Electronic Speed Controller1 x AXC TP - 150mm Plastic Centrifugal Inline Fan
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