IRE 315 B1 | H. Östberg

IRE 315 B1 Updated: 2025-08-20

7900104 -

IRE 315 B1 aut tc

Insulated duct fan with circular connections.
Equipped with 50 mm of thermal and acoustic insulation makes it ideal for handling cold air.
Designed for high pressure and long, complicated duct runs.
The design prioritise functionality, durability and longevity.
Impeller with forward curved blades.
The external rotor motor has maintenance-free sealed ball-bearings.
Integrated motor protection.
Junction box has enclosure class IP 54.
For speed control a transformer or electronic speed controller can be connected.
The housing is manufactured from galvanized sheet steel.
Duct connections are equipped with rubber seals.
The fan is intended to be installed in a duct system.
A duct connected fan can be installed outside or in damp environments.

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...

	IRE 315 B1 aut tc 7900104
Parameter	Value	Unit
Voltage	230	V
Phase	1	~
Frequency	50	Hz
Power	645	W
Current	3	A
Speed	1330	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	46	dB(A)
Weight	30.8	kg
Enclosure class	54	IP
Insulation class, motor	F
Capacitor	12	µF
Duct connection	315	mm
Max. flow @ 0Pa	550	l/s
Max. pressure	372	Pa
Voltage range	220-240	V