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280mm Galvanized Metal Impeller Compact DC Backward Curved Centrifugal Fan

Voltage Type: DC

Motor Type: BLDC External Rotor Motor

Impeller Diameter: 280mm

Impeller Material: Galvanized Steel

Speed Control: 0-10VDC/PWM

Protection Type: IP44

Insulation Class: B

Operation Temperature : - 25 ℃ ~ +60 ℃

Motor Protection: Locked-Rotor Protection, Reverse Polarity Protection, Thermal Protection, Soft Start

Technical Parameters
Model No.Bearing SystemRated VoltageOperating VoltageRated CurrentRated PowerRated SpeedAir FlowAir PressureNoise Level
B/SVDCVDCAWRPMm³/hPadBA
B3D-48280-M2-00Ball4836~574.52202200231052569

Outline Drawing

B3D-48280-M2-00 2D

Performance Curve

B3D-48280-M2-00 PQ

Renewable Energies

Application Fields

Renewable Energies

As renewable energy continues to make up a larger share of the global power supply, the systems responsible for generating, storing, and distributing that energy must meet ever-higher standards for efficiency, reliability, and durability. At Seemtek, our advanced, intelligently controlled fans are designed to meet these demands—ensuring effective thermal management across a wide range of renewable energy applications. Drawing on our deep industry experience and commitment to innovation, we support the long-term, stable operation of electric vehicle charging stations, energy storage units, solar inverters, and other clean energy infrastructure.

Ventilation

Application Fields

Ventilation

In the design of ventilation equipment, human health and comfort are key considerations. The low-noise, high-performance fans offered by Seemtek ensure optimal airflow while enhancing comfort and promoting a healthy environment. By integrating Seemtek’s energy-efficient drive systems and intelligent control technologies, our biomimetic fans deliver stable and efficient performance in a wide range of applications, maintaining low noise levels that are almost imperceptible. The ideal modern ventilation system is quiet, discreet, and highly reliable, achieving excellent energy efficiency and economic operation through precise control and intelligent adjustment based on demand.

Fans Retrofit

Application Fields

Fans Retrofit

Upgrading traditional fan systems with Seemtek EC fans is an efficient way to achieve energy savings and smarter operation. Fan retrofit requires no complete system replacement—Seemtek offers EC fan solutions that are fully compatible with existing AC fans, enabling fast, cost-effective installation.

Compared to conventional AC fans, Seemtek EC fans integrate high-efficiency motors with advanced control technology, allowing for precise speed adjustment and significantly lower energy consumption—up to 30% energy savings. In addition, EC fans are quieter, more compact, and easier to integrate into existing setups, helping reduce both space usage and noise levels.


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