BESF280 box fan

Technical data

Technical data, BESF280-4-3EC

MODEL	BESF280-4-3EC OGSR
Fan data
Max. overall efficiency	58,5 %
ECO measurement set-up (A-D)	D
Efficiency requirements	49, N(2015)
ECO efficiency at optimal operating point	68,9
Motor
Motor	EC motor with integral VSD
Optimal operating point: Absorbed power Airflow Total pressure Rpm	493 W 1870 m^3/h 555 Pa 1306 rpm
Nominal rpm (N)	1448 rpm
Electric supply (U)	3 x 230D/400Y
Overload protection	Integrated in motor control
Max absorbed current* (I)	5.3 A
Max. absorbed power (P₁)**	3.2 kW
Motor output (P₂)**	2.2 kW
Other data
Weight	65 kg

* I is the maximum absorbed current throughout the control range - or the full load current if this is larger
** P₁ is the maximum absorbed power from the mains supply, where P₂ is the motor's nominal output.
Stated data for for t = 20°C
Density = 1.2 /m³
Values are based on the use of a transition piece equivalent to OGSR
Gas temperature: min. -12°C, max. +60° C
Ambient temperature: Max. +40°C
Pressure ratio: < 1,11
other points in acc. with EC327/2011 - see product instructions

Capacity diagram

BESF280-4-3EC kapacitetskurve

Sound data