Product Category

280mm EC-DC Backward Curved Centrifugal Fan PB3N280B24M

280mm EC-DC Backward Curved Centrifugal Fan PB3N280B24M

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

PB3N280B24M is a 280mm DC backward centrifugal fan made especially for HVAC Partial Cooling and Warming System. It is widely used as an indoor air circulation module for FCUs (fan coil units), as an airflow distribution unit for zoned air conditioning systems, and in the zoned air supply terminals of VRF (variable refrigerant flow) systems. This allows for precise control of airflow and independent temperature adjustment in each zone, enabling individual/zoned cooling and heating in office buildings, serviced apartments, and shopping malls.

Customized wiring solutions and protection enhancements (up to IP55) are among the OEM customization services we provide on demand. In addition to making fans, PBM offers airflow solutions for zoned heating and cooling systems.

General Characters

1-1	Rated Voltage	24 VDC
1-2	Operating Voltage	16~28 VDC
1-3	Rated Speed	2600 RPM
1-4	Input Current	9.6 A
1-5	Input Power	230.4 W
1-6	Air Flow	1213 CFM / 1930 M³/H
1-7	Static Pressure	4.12 inH₂O / 740 Pa
1-8	Acoustical Noise	74 dB(A)
1-9	Life Expectancy	50,000 Hours (L10) At 40℃ room, humidity is 15%~65% RH.
1-10	Insulation Class	Class B
1-11	Motor Protection	Locked rotor protection Polarity protection Automatic restart capability
1-13	Speed Control	Control input 0~10VDC / PWM
1-14	Protection Type	IP44
1-15	Signal Output	FG (Frequency Generator)

Mechanical Characters

2-1	Dimension	Ø280 mm X 99 mm (see dimension drawing)
2-2	Material of Impeller	Galvanized Metal Shell
2-3	Number of Blades	11
2-4	Bearing System	NMB ball bearing
2-5	Lead Wire	DC (AWG20 #)