KVFU 250 B1 | H. Östberg

KVFU 250 B1 Updated: 2023-03-01

7100139 -

KVFU 250 B1 aut tc

7100145 -

KVFU 250 B1 man tc
Archived product

Product marked with this symbol has an AC motor. An induction motor is an electric motor were the rotor speed is asynchronous with the input voltage frequency.

This product is compliant with the Lot 6 directive (1253/2014) and approved for use in the EU and EFTA, also after 2018.

Wall fan with circular inlet connection.
KV has a square mounting plate.
Proven performance and reliability.
Compact with high capacity and efficiency.
Suitable for a wide variety of applications.
Operational in both 50 and 60 Hz.
Impeller with backward 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.
Fan housing is manufactured from galvanized sheet steel.
The fan is intended to be installed in a duct system, mounted on the inside wall.
Easy installation in any position.
Can be used in damp environments.

Diagrams

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.

Sound data

Generating diagrams...

Technical Data

	KVFU 250 B1 aut tc 7100139		KVFU 250 B1 man tc 7100145 Archived product
Parameter	Value	Unit	Value	Unit
Voltage	230	V	230	V
Phase	1	~	1	~
Frequency	50	Hz	50	Hz
Power	146	W	146	W
Current	0.63	A	0.63	A
Current when speed controlled	0.74	A	0.74	A
Speed	2740	r.p.m.	2740	r.p.m.
Max. temperature of transported air	80	°C	80	°C
Max. temperature of transported air when speed controlled	65	°C	65	°C
Sound pressure level at 3 m	46	dB(A)	46	dB(A)
Weight	4.6	kg	4.6	kg
Enclosure class	44	IP	44	IP
Insulation class, motor	F		F
Capacitor	5	µF	5	µF
Duct connection	250	mm	250	mm
Max. flow @ 0Pa	266	l/s	266	l/s
Max. pressure	525	Pa	525	Pa
Voltage range	220-240	V	220-240	V

Product information sheet

Parameter	Value	Unit
(a) Manufacturer	Östberg	-
(b) Model code	KVFU 250 B1	-
(c) Declared type	NRVU / UVU	-
(d) Type of drive	Multi-speed drive	-
(e) Type of HRS	N/A	-
(f) Thermal efficiency	N/A	%
(g) Nominal flow rate	0.158	m³/s
(h) Effective power input	0.146	kW
(i) SFP int	N/A	W/(m³/s)
(j) Face velocity	3.2	m/s
(k) Nominal external pressure	329	Pa
(l) Internal pressure drop	N/A	Pa
(n) Static efficiency	43.0	%
(o) External (and internal) leakage rate	N/A	%
(p) Filter classification	N/A	-
(q) Visual filter warning	N/A	-
(r) Sound power level	53	dB LwA
(s) Disassembly instructions	www.ostberg.com	-

Wiring Diagram

Dimensions

Accessories

Mechanical accessories

Electrical accessories

Downloads

3D drawings

Diagrams

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.

Sound data

Generating diagrams...

Technical Data

	KVFU 250 B1 aut tc 7100139 (50)/60Hz		KVFU 250 B1 man tc 7100145 (50)/60Hz
Parameter	Value	Unit	Value	Unit
Voltage	230	V	230	V
Phase	1	~	1	~
Frequency	60	Hz	60	Hz
Power	236	W	236	W
Current	1.03	A	1.03	A
Speed	3050	r.p.m.	3050	r.p.m.
Max. temperature of transported air	60	°C	60	°C
Sound pressure level at 3 m	46	dB(A)	46	dB(A)
Weight	4.6	kg	4.6	kg
Enclosure class	44	IP	44	IP
Insulation class, motor	F		F
Capacitor	5	µF	5	µF
Duct connection	250	mm	250	mm
Max. flow @ 0Pa	320	l/s	320	l/s
Max. pressure	749	Pa	749	Pa
Voltage range	220-240	V	220-240	V

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