Product Category

133mm EC-AC Backward Curved Centrifugal Fan PB3N133B2EH

133mm EC-AC Backward Curved Centrifugal Fan PB3N133B2EH

PBM FOCUS ON EC FAN ONLY. Certificate: CE,UL,ROHS; Supply Ability: 100,000 pcs per year; MOQ: 1~100 pcs based on EXW price; 100 pcs above based on FOB price.

Technical Description

Curve and Draw

Certificate

Application Scopes

Packing Details

Compact in size, the 133mm EC backward centrifugal fan has a high static pressure of 475 Pa, a big air volume of 460 m³/h, low power consumption of 48 W, IP44 protection, and a broad working temperature range. It is especially made to dissipate heat in outdoor cabinets and communication base stations. Equipment in outdoor cabinets, integrated power supply cabinets, and communication base stations operates in hot, dusty, and sunny conditions with little interior space and strong airflow resistance. Regular axial fans struggle to overcome the resistance of filters and lengthy ducts because they do not have enough air pressure. With its high static pressure of 475 Pa, this EC reverse centrifugal fan can readily pass through winding ducts and dust filters, providing enough cooling airflow for power amplifier modules, power supplies, and other heat-producing parts. In addition, the EC motor may be utilized with a temperature sensor for on-demand cooling and enables 0–10V speed control, which significantly lowers the base station's overall energy usage. IP44 protection and a wide working temperature range of -25℃ to 60℃ make it unaffected by external rain, fog, or extreme heat. It guarantees the dependability of long-term unattended base station operation with a 50,000-hour lifespan and stall protection feature. As a result, it is the recommended core part for heat dissipation and ventilation in outdoor electrical cabinets, edge computer nodes, and communication base stations.

General Characters

1-1	Rated Voltage	230 VAC
1-2	Frequency	50/60 Hz
1-3	Operating Voltage	184~270 VAC
1-4	Rated Speed	4480 RPM
1-5	Input Current	0.33 A
1-6	Input Power	48 W
1-7	Air Flow	270.71 CFM / 460 M³/H
1-8	Static Pressure	1.90 inH₂O / 475 Pa
1-9	Acoustical Noise	75 dB(A)
1-10	Life Expectancy	50,000 Hours (L10) At 40℃ room, humidity 15%~65%RH.
1-11	Insulation Class	Class B
1-13	Motor Protection	Locked rotor protection Polarity protection Automatic restart capability
1-14	Speed Control	Control input 0~10VDC / PWM
1-15	Protection Type	IP44
1-17	Signal Output	FG (Frequency Generator)

Mechanical Characters

2-1	Dimension	Ø133 mm X 110 mm (see dimension drawing)
2-2	Material of Impeller	PA6+GF
2-3	Number of Blades	7
2-4	Bearing System	NMB ball bearing
2-5	Lead Wire	AC (AWG20 #), DC (AWG22 #)