BFC 500 B1 EC | H. Östberg

BFC 500 B1 EC Updated: 2025-06-03

7460451 -

BFC 500 B1 EC-v1

7460425 -

BFC 500 B1 EC
Archived product

Duct fan with circular connections.
High capacity and very good efficiency.
Impeller with backward curved blades.
The external rotor motor has maintenance-free sealed ball-bearings and is very energy efficient.
Speed controlling can be done with the built-in potentiometer, 0-10 V alt. external control.
Integrated motor protection.
Junction box has enclosure class IP 54.
Fan 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.
Easy installation in any position.

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...

	BFC 500 B1 EC-v1 7460451		BFC 500 B1 EC 7460425 Archived product
Parameter	Value	Unit	Value	Unit
Voltage	230	V	230	V
Phase	1	~	1	~
Frequency	50/60	Hz	50/60	Hz
Power	784	W	784	W
Current	3.62	A	3.62	A
Speed	1120	r.p.m.	1120	r.p.m.
Max. temperature of transported air	55	°C	55	°C
Sound pressure level at 3 m	50	dB(A)	50	dB(A)
Weight	58.9	kg	58.9	kg
Enclosure class	54	IP	54	IP
Insulation class, motor	F		F
Duct connection	500	mm	500	mm
Max. flow @ 0Pa	2388	l/s	2388	l/s
Max. pressure	326	Pa	326	Pa
Voltage range	200-277	V	200-277	V

Parameter	Value	Unit
(a) Manufacturer	Östberg	-
(b) Model code	BFC 500 B1 EC	-
(c) Declared type	NRVU / UVU	-
(d) Type of drive	Variable speed drive	-
(e) Type of HRS	N/A	-
(f) Thermal efficiency	N/A	%
(g) Nominal flow rate	1.427	m³/s
(h) Effective power input	0.772	kW
(i) SFP int	N/A	W/(m³/s)
(j) Face velocity	7.3	m/s
(k) Nominal external pressure	269	Pa
(l) Internal pressure drop	N/A	Pa
(n) Static efficiency	63.3	%
(o) External (and internal) leakage rate	0.031 (N/A)	%
(p) Filter classification	N/A	-
(q) Visual filter warning	N/A	-
(r) Sound power level	57	dB LwA
(s) Disassembly instructions	www.ostberg.com	-