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Singleflow SSDR

Singleflow SSDR

Product catalog summary

Product Overview

The Singleflow SSDR is a roof-mounted, direct drive centrifugal fan designed for external installation. It features a BAT Vpro backward curved impeller with 3D profiled blades, powered by Ziehl-Abegg electronically commutated (EC) or AC external rotor motors. The casing is constructed from 1.2mm thick natural finish Aluzinc, designed to minimize vibration and includes bird-guarded louvered air discharge and drain points. It operates up to +60°C and is available in 8 standard sizes ranging from 200mm to 710mm.

Key Specifications

Airflow: Up to 4.03 m³/s (AC) and 4.01 m³/s (EC)
Static Pressure: Up to 1219 Pa (AC) and 1205 Pa (EC)
Motors: Ziehl-Abegg EC or AC external rotor motors with sealed-for-life bearings; thermal class THCL 130 or 155 depending on size
Material: Aluzinc casing with EPDM U-shaped seals for duct connection
Noise: Low tonal noise impeller, dynamically balanced to ISO 14694 Grade G6.3
Quality Standards: Manufactured under BS EN ISO 9001:2008; tested per BS848 Part 2 (sound) and ISO 5801 (airside performance)

Performance Data

Performance tables detail airflow at various static pressures, motor electrical data (input power, full load current), and sound power levels across octave bands for both AC and EC motor variants. Efficiency ranges from approximately 22% to 47% depending on model and operating point. Sound pressure levels are measured at 3 meters in spherical free-field conditions, expressed in dB(A).

Motor and Control Options

The fan range offers AC and EC motor options. EC motors include integrated variable speed drives supporting control voltages of 2V, 5V, 8V, and 10V for precise airflow modulation. AC motors operate at standard voltages (200-240V single-phase and 380-415V three-phase) with optional transformer and electronic controllers for speed regulation.

Accessories and Installation

Available accessories include electronic controllers, transformer controllers, flexible duct connections, clamps, and silencers ranging from 300mm to 1200mm in length. Wiring diagrams are provided for each model to facilitate installation and maintenance. The casing features top access panels for easy servicing.

Applications

Suitable for diverse environments such as industrial buildings, banks, hospitals, offices, hotels, and shopping malls.

Standards and Testing

All units comply with BS EN ISO 9001:2008 quality management standards. Sound testing follows BS848 Part 2:1985, and airflow performance is tested according to ISO 5801:2007. Efficiency and motor performance data conform to ISO 12759 installation category C.

Summary of Critical Information

Material: 1.2mm Aluzinc casing with EPDM seals
Impeller: Backward curved, low noise, dynamically balanced
Motors: Ziehl-Abegg EC or AC external rotor, sealed bearings, thermal class 130/155
Operating temperature: Up to +60°C
Airflow range: 0.032 to 4.035 m³/s depending on model and control voltage
Static pressure range: Up to 1219 Pa
Sound levels: Provided for inlet and outlet, with silencer attenuation data
Accessories: Controllers, flexible connections, clamps, silencers
Applications: Suitable for commercial and industrial ventilation needs

Detailed Performance and Electrical Data

Performance data is provided for various SSDR models at control voltages of 2V, 5V, 8V, and 10V. Key parameters include airflow at different static pressures, overall efficiency (ranging from ~3.6% at low voltages to over 59% at optimal points), motor electrical data (FMEG values), full load current, input power, and sound pressure levels measured at 3 meters. Airflow decreases as static pressure increases. Variable speed drives are integrated within the fans. Note that sound pressure levels at 2V control voltage may be unreliable due to background noise interference.

Sound Data

Sound power levels are provided in dBW across octave bands from 63Hz to 8kHz for both inlet and outlet sides at different control voltages. Total sound power levels and silencer attenuation values (dBA) for silencers of various lengths (300mm to 1200mm) are included. Silencer attenuation ranges from approximately -5 dBA to -17 dBA depending on frequency and silencer length. Sound data complies with BS 848 Part 2:1985 at 50% peak pressure.

Accessories and Wiring

Accessories include electronic controllers (standard model 149-POT-10), flexible duct connections, clamps, and silencers. Wiring diagrams are provided for installation guidance. Some silencers require enquiry for availability.

Dimensional Data

Dimensions and weights vary by model, with sizes ranging from SSDR200 (509x350x205 mm, 14 kg) to SSDR710 (1180x1168x570 mm, 128-149 kg depending on motor type). Key dimensional parameters include A, B, C, diameter (ø D), E, and F.

Standards and Testing

Performance and sound data are tested and prepared according to ISO 12759 installation category C and BS 848 Part 2:1985 standards, with data provided at a standard air density of 1.2 kg/m³.

Critical Recommendations

Verify dimensions and data upon request due to ongoing product development.
Sound pressure levels at 2V control voltage may be unreliable due to background noise.
Integrated variable speed drives enable efficient speed control.
Select silencers based on required attenuation across frequency bands.
Consult wiring diagrams and accessory compatibility for proper installation.

Contact Information

Elta Fans Limited provides contact details for sales, technical support, and export inquiries, including telephone, fax, email, and website.

Catalog excerpts

t: 01384 275800 f: 01384 275810 e: [email protected] visit: eltaselect.com Singleflow SSDR Product Brochure MIXED FLOW HEAT RECOVERY

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Singleflow SSDR MORE INFORMATION Accessories & Wiring Data Optimum Energy Efficiency Point Dimensional Data Performance, SFP & Electrical Data Sound Data QUICK FACTS Roof Mounted Direct Drive Centrifugal Fan The Singleflow SSDR...EC incorporates the BAT (Best Available Technology) Vpro backward curved impeller, with three dimensional profiled blades powered by the ultra reliable Ziehl-Abegg EC (electronically commutated) external rotor motor.The range of single roof fans are suitable for external mounting, manufactured in Aluzinc with a natural finish. ü 8 standard sizes from 200mm to 710mm....

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Singleflow SSDR Performance, SFP & Electrical Data SINGLE Phase - 200V to 240V / 50Hz Product Code Speed r/min Airflow m³/s @ Static Pressure Pa. 0 Overall Efficiency % Motor Electrical Data Overall static efficiency, r/min and FMEG values are per ISO 12759 installation category . FLC Amps @ 230V / 1Ph / 50Hz. The overall A-weighted sound pressure level is at a distance of 3m with spherical free-field propagation. It is expressed in dB re-20µPa and is presented for comparative purposes only. Sound Data SINGLE Phase - 200V to 240V / 50Hz Sound Power Level dBW @ Octave Band Hz Product Code Speed...

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Singleflow SSDR Performance, SFP & Electrical Data THREE Phase - 380V to 415V / 50Hz Product Code Speed r/min Airflow m³/s @ Static Pressure Pa. Motor Electrical Data Overall static efficiency, r/min and FMEG values are per ISO 12759 installation category C. FLC Amps @ 400V / 3Ph / 50Hz. The overall A-weighted sound pressure level is at a distance of 3m with spherical free-field propagation. It is expressed in dB re-20µPa and is presented for comparative purposes only. Sound Data THREE Phase - 380V to 415V / 50Hz Sound Power Level dBW @ Octave Band Hz Product Code Data provided at standard air...

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Singleflow SSDR Accessories & Wiring Data For more information on Accessories & Wiring Diagrams, please see individual product downloads, or visit eltaselect.com/information-centre SINGLE Phase - 200V to 240V / 50Hz Product Code Electronic Controller Flexible Connections (each) Transformer Controller Clamps (each) Wiring Diagram No.no Please enquire. THREE Phase - 380V to 415V / 50Hz Product Code Transformer Controller Flexible Connections (each) Clamps (each) Wiring Diagram No.no Please enquire. Optimum Energy Efficiency Point SINGLE Phase - 200V to 240V / 50Hz Speed r/min Product Code Speed...

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Singleflow SSDR Performance, SFP & Electrical Data SINGLE Phase - 200V to 277V / 50Hz or 60Hz Product Code Control Voltage Airflow m³/s @ Static Pressure Pa. Airflow 0 m³ / s W / (L/s) m³ / s W / (L/s) m³ / s W / (L/s) m³ / s W / (L/s) m³ / s W / (L/s) m³ / s W / (L/s) m³ / s W / (L/s) m³ / s W / (L/s) m³ / s W / (L/s) m³ / s W / (L/s) m³ / s W / (L/s) m³ / s W / (L/s) m³ / s W / (L/s) m³ / s W / (L/s) m³ / s Motor Electrical Data Overall Efficiency FMEG % Overall static efficiency, r/min and FMEG values are per ISO 12759 installation category C. FLC Amps @ 230V / 1Ph / 50Hz. The overall A-weighted...

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Singleflow SSDR Performance, SFP & Electrical Data SINGLE Phase - 200V to 277V / 50Hz or 60Hz Product Code Control Voltage Airflow m³/s @ Static Pressure Pa. Airflow 0 m³ / s W / (L/s) m³ / s W / (L/s) m³ / s W / (L/s) m³ / s W / (L/s) Overall Efficiency FMEG % Motor Electrical Data Overall static efficiency, r/min and FMEG values are per ISO 12759 installation category C. FLC Amps @ 230V / 1Ph / 50Hz. The overall A-weighted sound pressure level is at a distance of 3m with spherical free-field propagation. It is expressed in dB re-20µPa and is presented for comparative purposes only. A variable...

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Singleflow SSDR Sound Data SINGLE Phase - 200V to 277V / 50Hz or 60Hz Product Code Sound Power Level dBW @ Octave Band Hz Control Voltage Inlet Outlet Inlet Outlet Data provided at standard air density of 1.2 kg/m³. Tests and preparation of the sound data have been carried out in accordance with BS 848 Part 2:1985 at 50% peak pressure. The Sound Power Level Spectra are in dB re-1pW. Elta Fans Limited has a policy of continuous product development and improvement and therefore reserves the right to supply products which may differ from those illustrated and described in this publication. Confirmation...

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Singleflow SSDR Performance, SFP & Electrical Data THREE Phase - 380V to 480V / 50Hz or 60Hz Product Code Control Voltage Airflow m³/s @ Static Pressure Pa. Airflow 0 m³ / s W / (L/s) m³ / s W / (L/s) m³ / s Motor Electrical Data Overall Efficiency FMEG % Overall static efficiency, r/min and FMEG values are per ISO 12759 installation category C. FLC Amps @ 230V / 1Ph / 50Hz. The overall A-weighted sound pressure level is at a distance of 3m with spherical free-field propagation. It is expressed in dB re-20µPa and is presented for comparative purposes only. *At 2V the average spherical free-field...

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Singleflow SSDR Sound Data THREE Phase - 380V to 480V / 50Hz or 60Hz Product Code Sound Power Level dBW @ Octave Band Hz Control Voltage Data provided at standard air density of 1.2 kg/m³. Tests and preparation of the sound data have been carried out in accordance with BS 848 Part 2:1985 at 50% peak pressure. The Sound Power Level Spectra are in dB re-1pW. Elta Fans Limited has a policy of continuous product development and improvement and therefore reserves the right to supply products which may differ from those illustrated and described in this publication. Confirmation of dimensions and data...

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Singleflow SSDR Accessories & Wiring Data For more information on Accessories & Wiring Diagrams, please see individual product downloads, or visit eltaselect.com/information-centre SINGLE Phase - 200V to 277V / 50Hz or 60Hz Product Code Electronic Controller Flexible Connections (each) Clamps (each) Silencer 1200mm Wiring Diagram Long No.no Please enquire. THREE Phase - 380V to 480V / 50Hz or 60Hz Electronic Controller Flexible Connections (each) Clamps (each) Product Code Wiring Diagram No.no 152-MOEA03K3 152-MOEA03K3 Please enquire. Optimum Energy Efficiency Point SINGLE Phase - 200V to 277V...

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