DFE 133-21 wired with box | H. Östberg

DFE 133-21 wired with box Updated: 2025-06-10

7700221 -

DFE 133-21 wired with box

Double inlet radial fan.

High pressure, large air volumes and low sound levels.

Impeller with forward curved blades.

The external rotor motor has maintenance-free sealed ball-bearings.

The motor is situated in the airstream to get ultimate cooling.

Integrated motor protection.

Can be ordered with junction box.

For speed control a transformer or electronic speed controller can be connected.

Fan housing is manufactured from galvanized sheet steel.

Compact design for a minimum amount of space.

Ideal for use in heat exchangers, dehumidifiers and air cleaners.

Generating diagrams...

Variable control

User input

Air Flow (l/s)

External static pressure (Pa)

Data

Air Flow (l/s)

External static pressure (Pa)

Power (W)

Speed (r.p.m.)

Current (A)

Voltage (V)

230

Efficiency (%)

SFPv (kW/m3/s)

Change the "User input" by dragging the point, or by entering new values.

Generating diagrams...

	DFE 133-21 wired with box 7700221
Parameter	Value	Unit
Voltage	230	V
Phase	1	~
Frequency	50	Hz
Power	230	W
Current	1.15	A
Speed	2000	r.p.m.
Max. temperature of transported air	40	°C
Max. temperature of transported air when speed controlled	40	°C
Sound pressure level at 3 m	64	dB(A)
Weight	4.2	kg
Enclosure class	44	IP
Capacitor	5	µF
Max. flow @ 0Pa	256	l/s
Max. pressure	464	Pa
Voltage range	220-240	V