TKV 960 C3 EC | H. Östberg

TKV 960 C3 EC Updated: 2025-09-11

7351030 -

TKV 960 C3 EC Black

7351050 -

TKV 960 C3 EC Black C4
Archived product

Roof fan with square connection.
Vertical outlet.
High performance and proven reliability.
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 which is polyester plastic coated in black as standard.
Swing-up design to simplify maintenance and cleaning of the impeller.
The easiest way to mount the roof fan is with a roof curb TFU.
The fan complies with environmental requirement M2.

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)

400

Efficiency (%)

SFPv (kW/m3/s)

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

Generating diagrams...

	TKV 960 C3 EC Black 7351030		TKV 960 C3 EC Black C4 7351050 Archived product
Parameter	Value	Unit	Value	Unit
Voltage	400	V	400	V
Phase	3	~	3	~
Frequency	50/60	Hz	50/60	Hz
Power	3730	W	3730	W
Current	5.7	A	5.7	A
Speed	1350	r.p.m.	1350	r.p.m.
Max. temperature of transported air	60	°C	60	°C
Max. temperature of transported air when speed controlled	60	°C	60	°C
Sound pressure level at 3 m	81	dB(A)	81	dB(A)
Weight	103.2	kg	103.2	kg
Enclosure class	54	IP	54	IP
Insulation class, motor	F		F
Duct connection	963x963	mm	963x963	mm
Max. flow @ 0Pa	4806	l/s	4806	l/s
Max. pressure	995	Pa	995	Pa
Voltage range	380-480	V	380-480	V

Parameter	Value	Unit
(a) Manufacturer	Östberg	-
(b) Model code	TKV 960 C3 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	2.964	m³/s
(h) Effective power input	3.696	kW
(i) SFP int	N/A	W/(m³/s)
(j) Face velocity	9.5	m/s
(k) Nominal external pressure	742	Pa
(l) Internal pressure drop	N/A	Pa
(n) Static efficiency	63.6	%
(o) External (and internal) leakage rate	N/A	%
(p) Filter classification	N/A	-
(q) Visual filter warning	N/A	-
(r) Sound power level		dB LwA
(s) Disassembly instructions	www.ostberg.com	-