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MRA - Centrifugal fan

MRA

Centrifugal fan

Medium-pressure centrifugal fans with direct drive. Application: extraction systems for pre-filtered technological dust (eg cutting, grinding, polishing), pneumatic transport (eg PET production), blowing in drying systems, etc.
Can be painted in a color
other than standard
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APPLICATION

Fan designed for transporting non-aggressive and non-explosive gases without contamination. Typical applications:

  • pneumatic transport,
  • blowing in drying systems (eg graphic machines and plastics processing),
  • air blowing systems in combustion / heat treatment systems (eg melting furnaces).

CONSTRUCTION

  • medium-pressure centrifugal fan with direct drive,
  • riveted impeller from aluminium sheet with forward curved blades, dynamically balanced according to ISO 1940-1,
  • aluminium cast housing,
  • galvanized protective mesh at the inlet,
  • model 600 is equipped with a motor support,
  • fan painted grey RAL 7042,
  • maximum temperature of the transported medium is 80°C,
  • ambient temperature range from -20°C to + 40°C,
  • figure LG270.

MOTOR

  • asynchronous, single-phase, 230V, 50Hz (power from 0.75 to 1.5kW),
  • asynchronous, three-phase, 230 / 400V, 50Hz (power from 0.75 to 1.5kW),
  • asynchronous, three-phase, 400 / 690V, 50Hz (with power 4.0kW and 11.0kW),
  • efficiency class IE3 (power from 0.75 kW) or IE1 (0.75 kW, 230V),
  • degree of protection IP55,
  • insulation class F,
  • three-phase motors are adapted for frequency converter,
  • for voltage regulation (single phase motors 1.1kW).

SPECIAL EXECUTIONS

  • optional configuration LG/RD,
  • colour other than standard,
  • impeller made of galvanized steel sheet,
  • impeller made of stainless steel 1.4301,
  • impeller made of acid-proof steel 1.4404,
  • motor with voltage and frequency of power different than standard,
  • motor with other than standard degree of protection,
  • motor equipped with sensors or additional cooling,
  • sealing between the housing and the motor,
  • maximum temperature of the transported medium above 80°C,
  • ambient temperature range below -20°C and above +40°C.

Technical assistance

Catalog card

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m3/h
Pa
Type airflow max pressure max power max Rotation speed current max voltage Sound power
level*		 temp.
min		 temp.
max		 weight
  m3/h Pa W rpm A V db(A) oC oC kg
MRA 200T 890 2750 750 2890 1.7 400 80 -20 40 24

MRA 200T

Nominal parameters

  • Max. volume flow 890 m3/h
  • Maximum pressure 2750 Pa
  • Rotation speed 2890 rpm
  • Phase 3
  • Rated voltage 400 V
  • Rated power 750 W
  • Rated current 1.7 A
  • Rated frequency 50 Hz
  • Max. allowed frequency 50 Hz
  • Min. allowed frequency 25 Hz
  • Diameter 100 mm
  • Weight 24 kg
  • Motor type AC
  • Speed number 2
  • Motor protection class 55
  • Min. operating temperature -20 °C
  • Max. operating temperature 40 °C
  • Max. medium temperature 80 °C
  • Sound pressure level 80 dB(A)
  • Distance 1.5 m
MRA 200S 890 2750 400 2880 4.2 230 80 -20 40 24

MRA 200S

Nominal parameters

  • Max. volume flow 890 m3/h
  • Maximum pressure 2750 Pa
  • Rotation speed 2880 rpm
  • Phase 1
  • Rated voltage 230 V
  • Rated power 400 W
  • Rated current 4.2 A
  • Rated frequency 50 Hz
  • Diameter 100 mm
  • Weight 24 kg
  • Motor type AC
  • Speed number 2
  • Motor protection class 55
  • Capacitance 25 uF
  • Min. operating temperature -20 °C
  • Max. operating temperature 40 °C
  • Max. medium temperature 80 °C
  • Sound pressure level 80 dB(A)
  • Distance 1.5 m
MRA 260T 1550 2680 1100 2890 2.5 400 78 -20 40 36

MRA 260T

Nominal parameters

  • Max. volume flow 1550 m3/h
  • Maximum pressure 2680 Pa
  • Rotation speed 2890 rpm
  • Phase 3
  • Rated voltage 400 V
  • Rated power 1100 W
  • Rated current 2.5 A
  • Rated frequency 50 Hz
  • Max. allowed frequency 50 Hz
  • Min. allowed frequency 25 Hz
  • Diameter 100 mm
  • Weight 36 kg
  • Motor type AC
  • Speed number 2
  • Motor protection class 55
  • Min. operating temperature -20 °C
  • Max. operating temperature 40 °C
  • Max. medium temperature 80 °C
  • Sound pressure level 78 dB(A)
  • Distance 1.5 m
MRA 260S 1150 2730 1100 2900 5.8 230 78 -20 40 36

MRA 260S

Nominal parameters

  • Max. volume flow 1150 m3/h
  • Maximum pressure 2730 Pa
  • Rotation speed 2900 rpm
  • Phase 1
  • Rated voltage 230 V
  • Rated power 1100 W
  • Rated current 5.8 A
  • Rated frequency 50 Hz
  • Diameter 100 mm
  • Weight 36 kg
  • Motor type AC
  • Speed number 2
  • Motor protection class 55
  • Capacitance 70 uF
  • Min. operating temperature -20 °C
  • Max. operating temperature 40 °C
  • Max. medium temperature 80 °C
  • Sound pressure level 78 dB(A)
  • Distance 1.5 m
MRA 300T 1290 3560 1500 2880 3 400 90 -20 40 36

MRA 300T

Nominal parameters

  • Max. volume flow 1290 m3/h
  • Maximum pressure 3560 Pa
  • Rotation speed 2880 rpm
  • Phase 3
  • Rated voltage 400 V
  • Rated power 1500 W
  • Rated current 3 A
  • Rated frequency 50 Hz
  • Max. allowed frequency 50 Hz
  • Min. allowed frequency 25 Hz
  • Diameter 125 mm
  • Weight 36 kg
  • Motor type AC
  • Speed number 2
  • Motor protection class 55
  • Min. operating temperature -20 °C
  • Max. operating temperature 40 °C
  • Max. medium temperature 80 °C
  • Sound pressure level 90 dB(A)
  • Distance 1.5 m
MRA 300S 1560 3490 1500 2740 8 230 79 -20 40 35

MRA 300S

Nominal parameters

  • Max. volume flow 1560 m3/h
  • Maximum pressure 3490 Pa
  • Rotation speed 2740 rpm
  • Phase 1
  • Rated voltage 230 V
  • Rated power 1500 W
  • Rated current 8 A
  • Rated frequency 50 Hz
  • Diameter 125 mm
  • Weight 35 kg
  • Motor type AC
  • Speed number 2
  • Motor protection class 55
  • Capacitance 40 uF
  • Min. operating temperature -20 °C
  • Max. operating temperature 40 °C
  • Max. medium temperature 80 °C
  • Sound pressure level 79 dB(A)
  • Distance 1.5 m
MRA 400T 2890 4320 4000 2895 7.3 400 88 -20 40 65

MRA 400T

Nominal parameters

  • Max. volume flow 2890 m3/h
  • Maximum pressure 4320 Pa
  • Rotation speed 2895 rpm
  • Phase 3
  • Rated voltage 400 V
  • Rated power 4000 W
  • Rated current 7.3 A
  • Rated frequency 50 Hz
  • Max. allowed frequency 50 Hz
  • Min. allowed frequency 25 Hz
  • Diameter 160 mm
  • Weight 65 kg
  • Motor type AC
  • Speed number 2
  • Motor protection class 55
  • Min. operating temperature -20 °C
  • Max. operating temperature 40 °C
  • Max. medium temperature 80 °C
  • Sound pressure level 88 dB(A)
  • Distance 1.5 m
MRA 600T 6080 6780 11000 2900 19.1 400 96 -20 40 163

MRA 600T

Nominal parameters

  • Max. volume flow 6080 m3/h
  • Maximum pressure 6780 Pa
  • Rotation speed 2900 rpm
  • Phase 3
  • Rated voltage 400 V
  • Rated power 11000 W
  • Rated current 19.1 A
  • Rated frequency 50 Hz
  • Max. allowed frequency 50 Hz
  • Min. allowed frequency 25 Hz
  • Diameter 180 mm
  • Weight 163 kg
  • Motor type AC
  • Speed number 2
  • Motor protection class 55
  • Min. operating temperature -20 °C
  • Max. operating temperature 40 °C
  • Max. medium temperature 80 °C
  • Sound pressure level 96 dB(A)
  • Distance 1.5 m
MRA 600T 2400 6780 7500 2900 13.3 400 96 -20 40 163

MRA 600T

Nominal parameters

  • Max. volume flow 2400 m3/h
  • Maximum pressure 6780 Pa
  • Rotation speed 2900 rpm
  • Phase 3
  • Rated voltage 400 V
  • Rated power 7500 W
  • Rated current 13.3 A
  • Rated frequency 50 Hz
  • Max. allowed frequency 50 Hz
  • Min. allowed frequency 25 Hz
  • Diameter 180 mm
  • Weight 163 kg
  • Motor type AC
  • Speed number 2
  • Motor protection class 55
  • Min. operating temperature -20 °C
  • Max. operating temperature 40 °C
  • Max. medium temperature 80 °C
  • Sound pressure level 96 dB(A)
  • Distance 1.5 m

* measured in distance 1.5m from the fan.

Work characteristics

Dimensions

Type A B C E F S T X Y
  mm mm mm mm mm mm mm mm mm
MRA 200T 451 515 360 210 290 91 59 4 17
MRA 200S 451 515 360 210 290 91 59 4 17
MRA 260T 451 515 365 210 290 91 59 4 17
MRA 260S 451 515 365 210 290 91 59 4 17
Type Z N1 N2 N3 N4 P1 P2 X1
  mm mm mm mm mm mm mm mm
MRA 200T 13 46.5 156 215 240 140 200 4
MRA 200S 13 46.5 156 215 240 140 200 4
MRA 260T 13 46.5 156 215 240 140 200 4
MRA 260S 13 46.5 156 215 240 140 200 4
Type ØO ØD1 ØD2 ØD3 ØO1 Ød1 Ød2 Ød3
  mm mm mm mm mm mm mm mm
MRA 200T 9.5 165 139 106 6.6 165 139 100
MRA 200S 9.5 165 139 106 6.6 165 139 100
MRA 260T 9.5 200 182 138 6.6 165 139 100
MRA 260S 9.5 200 182 138 6.6 165 139 100
Type A B C E F S T X Y
  mm mm mm mm mm mm mm mm mm
MRA 300T 523 577 421 248 320 98 72 4 13
MRA 300S 523 577 421 248 320 98 72 4 13
MRA 400T 630 705 532 295 400 125 88 8 13
Type Z N1 N2 N3 N4 N5 N6 P1 P2
  mm mm mm mm mm mm mm mm mm
MRA 300T 13 17.5 167.5 273.5 297 349.5 380 180 230
MRA 300S 13 17.5 167.5 273.5 297 349.5 380 180 230
MRA 400T 13 17.5 167.5 273.5 301.5 349.5 380 180 230
Type X1 ØO ØD1 ØD2 ØD3 ØO1 Ød1 Ød2 Ød3
  mm mm mm mm mm mm mm mm mm
MRA 300T 8 9.5 200 182 140 6 191 165 125
MRA 300S 8 9.5 200 182 140 6 191 165 125
MRA 400T 8 11.5 234 200 162 6 234 200 160
Type A B C E F S T X N1
  mm mm mm mm mm mm mm mm mm
MRA 600T 850 920 678 395 500 150 120 4 30
MRA 600T 850 920 678 395 500 150 120 4 30
Type N2 N3 N4 P1 P2 X1 X2 ØO
  mm mm mm mm mm mm mm mm
MRA 600T 290 320 476 390 430 8 4 14
MRA 600T 290 320 476 390 430 8 4 14
Type ØD1 ØD2 ØD3 ØO1 ØO2 Ød1 Ød2 Ød3
  mm mm mm mm mm mm mm mm
MRA 600T 280 260 187 8 13 270 240 180
MRA 600T 280 260 187 8 13 270 240 180

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