 |
| Quantity: | |
|---|---|
FB3G250-48PL-90
Fanova
Nominal Voltage | VDC | 48 |
Nominal voltage range | VDC | 36~57 |
Current draw | A | 1.75±10% |
Speed(RPM) | min-1 | 2150±5% |
Power consumption | W | 85±10% |
Sound Pressure Level | dB(A） | 66±5% |
Max. Air Flow | CFM / m3/H | 666.18/1132 |
Max. Static Pressure | In.wg /Pa | 2.032/508 |
Insulation class | ~ | Class B |
Degree of protection | ~ | IP44 |
Control Input | ~ | 0~10VDC / PWM |
Signal Output | ~ | FG (Tach output ) |
The 48V-DC 250mm 85W External-Rotor Centrifugal Blower Fan merges compact design with robust performance, leveraging an external-rotor motor to integrate the motor and impeller into a single unit. This space-saving configuration reduces installation footprint by 40% compared to traditional split designs, making it ideal for applications with spatial constraints. With an 85W power rating and 250mm diameter, it delivers reliable airflow in systems requiring high static pressure, such as ductwork with multiple bends or filtration layers.
External-Rotor Motor Design
The motor's stator is fixed within the housing while the rotor rotates around it, directly driving the impeller without intermediate couplings. This eliminates energy loss from belt slippage or gear friction, boosting energy efficiency by up to 30% . The integrated design also reduces vibration transmission by 25%, extending the lifespan of adjacent components.
High Static Pressure Performance
Engineered to overcome system resistance, the blower generates 800 Pa maximum static pressure—sufficient to push air through HEPA filters (MERV 17) and 10m-long duct runs with 90° elbows. The impeller's radial blade angle is optimized to maintain pressure consistency across airflow rates (500-1,500 m³/h).
Low Noise Operation
Aerodynamically optimized blades with rounded leading edges reduce air turbulence, resulting in 72 dB(A) operation at full load—30% quieter than comparable centrifugal blowers . The motor's encapsulated windings further dampen electromagnetic noise, making it suitable for noise-sensitive settings.
Wide Voltage Range
Compatible with 36-57V DC power supplies, the blower adapts to voltage fluctuations common in off-grid industrial setups or vehicle-mounted systems. A built-in voltage regulator ensures stable performance within this range, preventing overcurrent during peak demand.
HVAC Systems: Integral to variable air volume (VAV) units in commercial buildings, where it adjusts airflow to match zone-specific cooling loads (100-500 m³/h per zone).
Medical Equipment: Used in respiratory ventilators and negative-pressure isolation rooms, where low noise and precise airflow control (±5% tolerance) are critical for patient comfort.
Industrial Ventilation: Efficiently extracts fumes from welding stations and chemical mixing tanks, with compatibility for duct-mounted activated carbon filters.
Rail Transportation: Installed in train cabin HVAC systems and underfloor electronic compartments (e.g., traction inverters), operating reliably under vibration (up to 5G) and temperature cycling.
Q: What is the airflow capacity?
A: The blower delivers 1,515 m³/h maximum airflow at 2,810 RPM, with adjustable output via speed control signals to match dynamic system demands.
Q: Can it be used in explosive environments?
A: The standard model is not explosion-proof, but it can be retrofitted with ATEX-certified enclosures (II 2G Ex d IIB T4) for use in Zone 1/2 hazardous areas with flammable gases.
Q: How often should the bearings be lubricated?
A: The blower uses double-sealed ball bearings pre-lubricated with high-temperature grease (operating range -40°C to 120°C), requiring no maintenance for the first 40,000 hours of operation.
Q: Does it support PWM control?
A: Yes, it accepts 0-10V DC/PWM signals (5-20kHz frequency) for speed adjustment, with a linear response curve enabling precise airflow modulation from 20% to 100% capacity.
Nominal Voltage | VDC | 48 |
Nominal voltage range | VDC | 36~57 |
Current draw | A | 1.75±10% |
Speed(RPM) | min-1 | 2150±5% |
Power consumption | W | 85±10% |
Sound Pressure Level | dB(A） | 66±5% |
Max. Air Flow | CFM / m3/H | 666.18/1132 |
Max. Static Pressure | In.wg /Pa | 2.032/508 |
Insulation class | ~ | Class B |
Degree of protection | ~ | IP44 |
Control Input | ~ | 0~10VDC / PWM |
Signal Output | ~ | FG (Tach output ) |
The 48V-DC 250mm 85W External-Rotor Centrifugal Blower Fan merges compact design with robust performance, leveraging an external-rotor motor to integrate the motor and impeller into a single unit. This space-saving configuration reduces installation footprint by 40% compared to traditional split designs, making it ideal for applications with spatial constraints. With an 85W power rating and 250mm diameter, it delivers reliable airflow in systems requiring high static pressure, such as ductwork with multiple bends or filtration layers.
External-Rotor Motor Design
The motor's stator is fixed within the housing while the rotor rotates around it, directly driving the impeller without intermediate couplings. This eliminates energy loss from belt slippage or gear friction, boosting energy efficiency by up to 30% . The integrated design also reduces vibration transmission by 25%, extending the lifespan of adjacent components.
High Static Pressure Performance
Engineered to overcome system resistance, the blower generates 800 Pa maximum static pressure—sufficient to push air through HEPA filters (MERV 17) and 10m-long duct runs with 90° elbows. The impeller's radial blade angle is optimized to maintain pressure consistency across airflow rates (500-1,500 m³/h).
Low Noise Operation
Aerodynamically optimized blades with rounded leading edges reduce air turbulence, resulting in 72 dB(A) operation at full load—30% quieter than comparable centrifugal blowers . The motor's encapsulated windings further dampen electromagnetic noise, making it suitable for noise-sensitive settings.
Wide Voltage Range
Compatible with 36-57V DC power supplies, the blower adapts to voltage fluctuations common in off-grid industrial setups or vehicle-mounted systems. A built-in voltage regulator ensures stable performance within this range, preventing overcurrent during peak demand.
HVAC Systems: Integral to variable air volume (VAV) units in commercial buildings, where it adjusts airflow to match zone-specific cooling loads (100-500 m³/h per zone).
Medical Equipment: Used in respiratory ventilators and negative-pressure isolation rooms, where low noise and precise airflow control (±5% tolerance) are critical for patient comfort.
Industrial Ventilation: Efficiently extracts fumes from welding stations and chemical mixing tanks, with compatibility for duct-mounted activated carbon filters.
Rail Transportation: Installed in train cabin HVAC systems and underfloor electronic compartments (e.g., traction inverters), operating reliably under vibration (up to 5G) and temperature cycling.
Q: What is the airflow capacity?
A: The blower delivers 1,515 m³/h maximum airflow at 2,810 RPM, with adjustable output via speed control signals to match dynamic system demands.
Q: Can it be used in explosive environments?
A: The standard model is not explosion-proof, but it can be retrofitted with ATEX-certified enclosures (II 2G Ex d IIB T4) for use in Zone 1/2 hazardous areas with flammable gases.
Q: How often should the bearings be lubricated?
A: The blower uses double-sealed ball bearings pre-lubricated with high-temperature grease (operating range -40°C to 120°C), requiring no maintenance for the first 40,000 hours of operation.
Q: Does it support PWM control?
A: Yes, it accepts 0-10V DC/PWM signals (5-20kHz frequency) for speed adjustment, with a linear response curve enabling precise airflow modulation from 20% to 100% capacity.
