EC technology and high efficiency for smarter, more economical, and precise air movement.
The SFR EC compact centrifugal fans feature impellers with diameters ranging from 190 to 310 mm and a compact design with direct drive powered by an EC motor. Equipped with radial-type impellers and ball bearings, they deliver suitable performance for a variety of air movement applications.
The line includes models with airflow rates of up to 3,700 m³/h and maximum pressures of up to 104.6 mmWC, depending on the selected model. The units feature an ultra-compact housing, motor thermal protection, an IP54 protection rating, and Class F insulation.
SFR EC fans are suitable for applications in supply and exhaust systems, air purification, industrial and commercial equipment, precision air conditioners, fan coil units, compact air handling units, ventilation cabinets, and other applications.
The impellers are manufactured from high-strength plastic or cast aluminum, depending on the model. The units use single-phase EC motors with a 230 V power supply and an operating frequency of 50–60 Hz, according to each model’s technical specifications.
About the Product
Main Features
✲ Centrifugal fan with a radial-type impeller.
✲ Direct drive powered by an EC motor.
✲ Ultra-compact housing.
✲ Ball bearings for increased durability and performance.
✲ Impellers made of high-strength plastic or cast aluminum, depending on the model.
✲ Models with airflow rates of up to 3,700 m³/h.
✲ Maximum pressures of up to 104.6 mmWC.
✲ Motor thermal protection.
✲ IP54 protection rating.
✲ Class F insulation.
✲ Single-phase motors, depending on the models listed.
✲ Operating frequency of 50–60 Hz.
✲ Storage temperature from −40°C to +75°C.
The product does not include the inlet nozzle. This accessory must be ordered or purchased separately.
Technical Specifications
| Materials and Construction | ||||||
|---|---|---|---|---|---|---|
| Model | Impeller Material | Motor Material | Motor Protection | Protection Rating | Insulation Class | Storage Temperature |
| SFR 190 EC – 230/50-60/735 | High-strength plastic | Cast aluminum | Thermal protection | IP54 | F | -40ºC / + 75ºC |
| SFR 225 EC – 230/50-60/1230 | High-strength plastic | Cast aluminum | Thermal protection | IP54 | F | -40ºC / + 75ºC |
| SFR 250 EC – 230/50-60/1680 | High-strength plastic | Cast aluminum | Thermal protection | IP54 | F | -40ºC / + 75ºC |
| SFR 280 EC – 230/50-60/2920 | High-strength plastic | Steel | Thermal protection | IP54 | F | -40ºC / + 75ºC |
| SFR 280 EC – 230/50-60/3500 | Cast aluminum | Steel | Thermal protection | IP54 | F | -40ºC / + 75ºC |
| SFR 310 EC – 230/50-60/3700 | Cast aluminum | Steel | Thermal protection | IP54 | F | -40ºC / + 75ºC |
| Performance and Electrical Parameters | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Model | Impeller Diameter | Speed | Peripheral Speed | Maximum Airflow | Maximum Pressure | Input Power | Rated Current | Phases | Rated Voltage | Sound Pressure at 1 m | Efficiency | Motor |
| SFR 190 EC – 230/50-60/735 | 190 mm | 3.480 rpm | 34,62 m/s | 735 m³/h | 63,8 mmWC | 95 W | 0,70 A | ~1 | 230 V | 75 dB (A) | 66% | 95 W – 1 / 230 V / 50-60 Hz |
| SFR 225 EC – 230/50-60/1230 | 225 mm | 2.770 rpm | 32,63 m/s | 1.230 m³/h | 62,2 mmWC | 140 W | 1,00 A | ~1 | 230 V | – | 47% | 140 W – 1 / 230 V / 50-60 Hz |
| SFR 250 EC – 230/50-60/1680 | 250 mm | 2.800 rpm | 36,65 m/s | 1.680 m³/h | 65,3 mmWC | 220 W | 1,50 A | ~1 | 230 V | – | 54% | 220 W – 1 / 230 V / 50-60 Hz |
| SFR 280 EC – 230/50-60/2920 | 280 mm | 2.920 rpm | 42,81 m/s | 2.920 m³/h | 100,5 mmWC | 640 W | 2,79 A | ~1 | 230 V | 82 dB (A) | 54% | 640 W – 1 / 230 V / 50-60 Hz |
| SFR 280 EC – 230/50-60/3500 | 280 mm | 2.850 rpm | 42,81 m/s | 3.500 m³/h | 104,6 mmWC | 800 W | 3,50 A | ~1 | 230 V | 86 dB (A) | 53% | 800 W – 1 / 230 V / 50-60 Hz |
| SFR 310 EC – 230/50-60/3700 | 310 mm | 2.700 rpm | 43,83 m/s | 3.700 m³/h | 93,4 mmWC | 675 W | 2,90 A | ~1 | 230 V | – | 50% | 675 W – 1 / 230 V / 50-60 Hz |
SFR 190 EC – 230/50-60/735 – EC CENTRIFUGAL FAN
SFR 225 EC – 230/50-60/1230 – EC CENTRIFUGAL FAN
SFR 250 EC – 230/50-60/1680 – EC CENTRIFUGAL FAN
SFR 280 EC – 230/50-60/2920 – EC CENTRIFUGAL FAN
SFR 280 EC – 230/50-60/3500 – EC CENTRIFUGAL FAN
SFR 310 EC – 230/50-60/3700 – EC CENTRIFUGAL FAN
Models
