Description
The Bi-Sonic BP702548M is a high-performance 48 VDC DC Axial Fan with dimensions of 70 x 70 x 25 mm, engineered to deliver strong active cooling and reliable thermal management for industrial electronics and power distribution systems. Constructed with a durable PBT plastic housing (UL94V-0), a PBT plastic impeller, precision dual ball bearings, and IP55 dust and water ingress protection, it has a net weight of 85 g. Driven by an advanced brushless DC motor operating at a nominal voltage of 48 VDC, it draws a rated current of 0.18 A with a power consumption of 8.64 W, utilizing a 2-wire lead connection. Operating at a nominal speed of 5000 RPM (±10%), it provides a Max. Air Flow of 45.30 CFM (76.96 m³/h / 1.28 m³/min) with a noise level of 42.7 dBA. Built for demanding environments, it features reverse polarity protection, locked rotor protection, and complies with CE, cULus, and RoHS agency approvals.
BP702548M Fan Parameters
Manufacturer: Bi-Sonic (Bi-Sonic Technology Corp.)
Model Number: BP702548M
Type: DC Axial Fan
Country of Origin: Taiwan
Nominal Voltage: 48 VDC
Rated Current: 0.18 A
Power Consumption: 8.64 W
Motor Type: Brushless DC Motor
Termination Style: 2 Wire Leads
IP Rating: IP55
Motor Protection: Reverse Polarity Protection, Locked Rotor Protection
Speed: 5000 RPM (±10%)
Max. Air Flow: 45.30 CFM (76.96 m³/h / 1.28 m³/min)
Noise Level: 42.7 dBA
Dimensions: 70 x 70 x 25 mm
Weight: 85 g
Housing Material: Plastic (PBT UL94V-0)
Impeller Material: Plastic (PBT UL94V-0)
Bearing Type: Dual Ball Bearing
Operating Temperature: -10 to +70 °C
Agency Approvals: CE, cULus, RoHS
Application
The Bi-Sonic BP702548M is deployed in 48V telecommunications power modules, network base stations, industrial frequency inverters, medical equipment, and compact electronic enclosures requiring high-volume active cooling under dusty or moist operating conditions.








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