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KSB 450 K2 EC


Centrifugal duct fan in a heat- and sound-insulated casing with air flow up to 5620 m³/h.

  • Description
  • Characteristics
  • Capacity diagram
  • Downloads
  • Dimensions
  • Additional characteristics
  • Designation key
Description
Description
APPLICATION  
  • The KSB K2 EC fans are designed for supply and exhaust ventilation of premises with high requirements to noise level and with limited space for mounting.
  • For example, the unit design includes a possibility of space-restricted installation above suspended ceilings.
  • Compatible with Ø 100-500 mm air ducts.
MOTOR DESIGN
  • The units feature efficient electronically commutated (EC) direct current motors with external rotor and centrifugal impellers with backward curved blades.
  • EC motor is free of friction and wear parts such as a commutator and brushes.
  • These components are replaced by a maintenance-free electronic circuit board.
  • EC motors are characterised with high performance and optimum control across the entire speed range.
  • In addition to that, the efficiency of the electronically commutated motor reaches very impressive levels of up to 90 %.

  • The fan casing is made of aluzinc.
  • For easy installation and operation, the top cover of the fan is secured with a special lock.
  • The casing is heat- and sound-insulated with a 50 mm layer of non-flammable mineral wool.
  • To ensure better noise absorption, the inner surface of the insulation is made of a perforated metal sheet.
  • The round connecting spigots are rubber sealed.

BUILT-IN FUNCTIONS AND CONTROL  
  • The fan is controlled with the external control signal 0-10 V (capacity control is performed depending on temperature, pressure, smoke level etc.).
  • The fan has low energy consumption at any speed.
  • Maximum fan speed does not depend on the available current frequency and is suitable for operation both at 50 and 60 Hz.
  • Several fans can be integrated into a single computer-driven control system.
  • Custom designed software provides high accuracy control of the fans integrated into a network.
  • The computer display shows all the system parameters and the operation mode can be set individually for each fan in the network.
INSTALLATION  
  • Duct fans are intended for mounting to round air ducts.
  • The fans are installed between the air ducts.
  • In case the fan is mounted on flexible joints, attach the fan to a structural unit by means of supports, suspension links or brackets.
  • The fan may be installed in any position in consideration of the air flow direction (as indicated by the arrow on the fan casing).
  • While mounting the fan provide enough access for servicing and repair operations.
Characteristics
Characteristics
Parameter KSB 450 K2 EC
Measurement unit
Frequency 50/60 Hz
Duct diameter 450 mm
Phase 1 ˜
Design centrifugal -
Voltage 200-277 V
Power 1200 W
Current 1.95 A
Sound pressure level at 3 m distance 54 dBА
Maximum air capacity 5620 m³/h
EC motor yes -
RPM 2580 min-1
Protection rating IP X4 -
Casing material aluzinc -
Mass 60 kg
SEC Class - -
Outdoor mounting no -
Sound-insulated casing yes -
Form-ducts for round air ducts -
Type supply and exhaust -
Mounting Inline -
Capacity diagram
Capacity diagram
  • Selection method:
  • Air flow:
  • Pressure:
Operating point
  • Air flow: --
  • Pressure: ---
Files archieve
Downloads
Name
Brochure "VENTS KSB K2 EC" (pdf 2.19Mb)
Download high quality image "VENTS KSB K2 EC (ErP 2018)" (psd 3.62Mb)
Download image "VENTS KSB K2 EC (ErP 2018)" for your website (png 209.74Kb)
Dimensions
Characteristics
KSB 450 K2 EC
Parameter Value Measurement unit
∅D 449 mm
B 885 mm
B1 670 mm
B2 982 mm
H 580 mm
L1 886 mm
L2 805 mm
Additional characteristics
Additional characteristics
Sound power level [A-filter] Sound pressure level at a distance of 3 m [A-filter] Sound pressure level at a distance of 1 m [A-filter]
Sound power level Gen. Octave frequency band [Hz]
  Hz 63 125 250 500 1000 2000 4000 8000 LpA, 3 m dBA LpA, 1 m dBA
LwA to inlet dBA 85 66 78 83 71 66 57 57 44 64 74
LwA to outlet dBA 92 76 87 89 84 69 59 62 52 71 81
LwA to environment dBA 75 61 71 72 58 55 46 44 39 54 64
Designation key
Designation key
Series Duct diameter Modification Motor Options
VENTS KSB 100, 125, 150, 160, 200, 250, 315, 355, 400, 450, 500 К2: heat- and sound-insulated casing ЕС: synchronous electronically commutated motor R: power cord with the IEC C14 connector
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