Product Category

400mm EC-DC Axial Fan PG3N400B48M

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

The PG3N400B48M 400mm DC cooling fan is made especially to work with fan coil units in central air conditioning systems. This 48V DC axial fan is suitable for building low-voltage integration and the DC systems of central air conditioners because of its safe, regulated power supply. Installing it in a machine room or a hidden interior position guarantees increased safety, and the steady voltage minimizes motor burnout. There is peace of mind since the low-voltage wiring conforms to requirements. It easily fits into the original ducting places of popular horizontal hidden, vertical exposed, and clamp-type fan coil units on the market because of its standard 400 mm frame size. It is appropriate for both new installations and retrofits, as it can be immediately replaced without the need to drill new holes or alter ducting. Heat exchange efficiency is the main benefit. DC stepless speed control, which automatically modifies speed based on room temperature—quiet, soft airflow at low temperatures and full-speed, forceful airflow at high temperatures—ensures accurate temperature regulation and enables 0–10V/PWM interaction with the main air conditioning board. This eliminates abrupt temperature swings by providing steady, balanced airflow for both heating and cooling. Heat exchange efficiency is increased by the high flow axial fan penetrating the coil. By focusing the airflow directly onto the evaporator fins, it guarantees that the whole heat exchange surface is reached. This results in more thorough heat exchange throughout both heating and cooling cycles, quicker cooling, more even distribution of warm air, and improved energy efficiency for the entire air conditioning system.

General Characters

1-1	Rated Voltage	48 VDC
1-2	Operating Voltage	36~57 VDC
1-3	Rated Speed	1100 RPM
1-4	Input Current	3.2 A
1-5	Input Power	153.6 W
1-6	Air Flow	1979.13 CFM / 3363 M³/H
1-7	Static Pressure	0.43 inH₂O / 108 Pa
1-8	Acoustical Noise	58 dB(A)
1-9	Life Expectancy	50,000 Hours (L10) At a 40°C room, humidity 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	Ø400 mm X 140 mm (see dimension drawing)
2-2	Material of Impeller	Cold-rolled steel sheet
2-3	Number of Blades	5
2-4	Bearing System	NMB ball bearing
2-5	Lead Wire	DC (AWG20 #)