AG12748UB385BM0 ADDA 48V 0.36A 127mm DC Axial Fan

Description

The ADDA AG12748UB385BM0 is a high-performance industrial DC Axial Fan with dimensions of 127 x 127 x 38 mm. Driven by a precision 48 VDC Brushless DC Motor, this AG127 series model is engineered as a high-efficiency cooling solution for industrial infrastructure. It delivers a reliable airflow performance driven by a rated current of 0.36 A and a power input of 17.28 W. Featuring a specialized 5-blade aerodynamic design, it is optimized for high-torque operation to overcome internal resistance in dense industrial enclosures. This 4-wire version includes both a tacho signal for monitoring and a PWM input for precise variable speed control, ensuring optimal thermal management. Equipped with a premium dual-ball bearing system, the AG12748UB385BM0 provides mission-critical durability for industrial inverters, telecommunications cabinets, and automated power systems.

AG12748UB385BM0 Fan Parameters
Manufacturer: ADDA
Model Number: AG12748UB385BM0
Motor Design: Brushless DC Motor
Type: DC Axial Fan (Inverter Cooling Series)
Dimensions: 127 x 127 x 38 mm
Impeller Size: 121 mm
Nominal Voltage: 48 VDC
Operating Voltage Range: 36.0 to 56.0 VDC
Starting Voltage: 30.0 VDC
Speed: 3800 RPM (at 100% PWM)
Power Input: 17.28 W
Rated Current: 0.36 A
Max. Airflow: 165.4 CFM (281.2 m³/h)
Max. Static Pressure: 145 Pa (0.58 inAq)
Noise Level: 51.2 dB(A)
Weight: 420 g
Termination: 4 Wire Leads (Red: +, Black: -, Yellow: Tacho, Blue: PWM)
Lead Wire Length: 300 mm (24 AWG)
Bearing Type: Dual Ball Bearing
Housing Material: Plastic (UL 94V-0 PBT)
Impeller Material: Plastic (UL 94V-0 PBT)
Number of Blades: 5
Direction of Rotation: Clockwise (viewed toward rotor)
Direction of Airflow: Struts Side Out (Exhaust)
Degree of Protection: IP20
Insulation Class: A
Dielectric Strength: 500 VAC / 1 min
Insulation Resistance: 10M Ω or over with a DC500V Megger
Operating Temp. Range: -10 °C to +70 °C
Storage Temp. Range: -40 °C to +70 °C
Life Expectancy (L10) at 40 °C: 70,000 h
Control Signal: PWM Speed Control
Signal Output: Tacho signal (FG)
Safety Protections: Auto-restart, Polarity protection, Locked-rotor protection
Approvals: CE, UL, TUV, CSA

Application
The AG12748UB385BM0 is primarily utilized as a high-reliability inverter cooling fan for industrial frequency drives and solar power systems, where it handles the thermal regulation of high-voltage IGBT stacks. Its 5-blade high-torque design is specifically engineered to force airflow through the dense internal heat sinks and dust filters typical of large-scale inverter cabinets. The 48V platform and 4-wire PWM interface allow the system controller to adjust fan speed dynamically based on the thermal load, optimizing energy efficiency while maintaining safe operating temperatures. Beyond power conversion, this fan is a critical component in telecommunications outdoor cabinets and industrial UPS systems, where the dual-ball bearing system ensures long-term performance in 24/7 automated environments.