Rosenberg EC-fans have high energy saving potential under full load and especially under partial load. The efficiency losses are significantly lower than with conventional AC-motors at the same air flow. The improved energy efficiency results in fewer CO2 emissions. In addition there are lower investment costs for speed control of the fan. A control transformer, VFD or phase angle controller are not necessary. All necessary components are already contained in the EC-motor electronics. Modern EC-technology from Rosenberg is not only easy on the wallet, but also on the environment.
1) Type: EHAG 560.6IF• 2) comparable AC fan • 3) electricity costs per kWh: 0,20 EUR• 4) Source: Umweltbundesamt (0,605 kg CO2 / kWh)
1) Type: R 250 G.3BK • 2)comparable AC fan • 3)electricity costs per kWh: 0,20 EUR • 4) Source: Umweltbundesamt (0,605 kg CO2 / kWh)
1) Type: KHAG 400.5FA • 2)comparable AC fan • 3)electricity costs per kWh: 0,20 EUR • 4) Source: Umweltbundesamt (0,605 kg CO2 / kWh)
1) Type: DVW 450-G.5FA • 2)comparable AC fan • 3)electricity costs per kWh: 0,20 EUR • 4) Source: Umweltbundesamt (0,605 kg CO2 / kWh)
1) Type: Uno 67-450-G.5HF • 2)comparable AC fan • 3)electricity costs per kWh: 0,20 EUR • 4) Source: Umweltbundesamt (0,605 kg CO2 / kWh)
Representative calculation examples:
» EC Centrifugal fans
Energy saving potential of EC Centrifugal fans, Size 560
Operating point
Short-term 100%
Day operation 80%
Night operation 60%
Air volume
8.000 m³/h
6.400 m³/h
4.800 m³/h
Static pressure
500 Pa
320 Pa
180 Pa
Power EC 1)
1.940 W
1.040 W
483 W
Power AC 2)
2.650 W
1.810 W
1.080 W
Operation time per day
2 hours
10 hours
12 hours
Energy consumption per year
Total
Power consumption EC
1.416 kWh/a
3.796 kWh/a
2.116 kWh/a
7.328 kWh/a
Power consumptionAC
1.935 kWh/a
6.607 kWh/a
4.730 kWh/a
13.271 kWh/a
Saving
518 kWh/a
2.811 kWh/a
2.615 kWh/a
5.944 kWh/a
Saving in %
26,8 %
42,5 %
55,3 %
44,8 %
Cost saving per year 3)
1.189 EUR
Emission reduction per year 4)
3,60 t CO2
» EC Tube fans
Energy saving potential of EC Tube fans, Size 250
Operating point
Short-term 100%
Day operation 80%
Night operation 60%
Air volume
500 m³/h
400 m³/h
300 m³/h
Static pressure
300 Pa
192 Pa
108 Pa
Power EC 1)
111 W
59 W
26 W
Power AC 2)
165 W
111 W
74 W
Operation time per day
2 hours
10 hours
12 hours
Energy consumption per year
Total
Power consumption EC
81 kWh/a
215 kWh/a
114 kWh/a
410 kWh/a
Power consumptionAC
120 kWh/a
405 kWh/a
324 kWh/a
850 kWh/a
Saving
39 kWh/a
190 kWh/a
210 kWh/a
439 kWh/a
Savingin %
32,7 %
46,8 %
64,9 %
51,7 %
Cost saving per year 3)
88 EUR
Emission reduction per year 4)
0,27 t CO2
» EC Duct fans
Energy saving potential ofEC Duct fans, Size 400
Operating point
Short-term 100%
Day operation 80%
Night operation 60%
Air volume
2.500 m³/h
2.000 m³/h
1.500 m³/h
Static pressure
250 Pa
160 Pa
90 Pa
Power EC 1)
374 W
209 W
102 W
Power AC 2)
492 W
368 W
248 W
Operation time per day
2 hours
10 hours
12 hours
Energy consumption per year
Total
Power consumption EC
273 kWh/a
763 kWh/a
447 kWh/a
1.483 kWh/a
Power consumptionAC
359 kWh/a
1.343 kWh/a
1.086 kWh/a
2.789 kWh/a
Saving
86 kWh/a
580 kWh/a
639 kWh/a
1.306 kWh/a
Savingin %
24,0 %
43,2 %
58,9 %
46,8 %
Cost saving per year 3)
261 EUR
Emission reduction per year 4)
0,79 t CO2
» EC Roof fans
Energy saving potential ofEC Roof fans, Size 450
Operating point
Short-term 100%
Day operation 80%
Night operation 60%
Air volume
4.000 m³/h
3.200 m³/h
2.400 m³/h
Static pressure
360 Pa
230 Pa
130 Pa
Power EC 1)
791 W
422 W
198 W
Power AC 2)
983 W
632 W
358 W
Operation time per day
2 hours
10 hours
12 hours
Energy consumption per year
Total
Power consumption EC
577 kWh/a
1.540 kWh/a
867 kWh/a
2.985 kWh/a
Power consumptionAC
718 kWh/a
2.307 kWh/a
1.568 kWh/a
4.592 kWh/a
Saving
140 kWh/a
767 kWh/a
701 kWh/a
1.607 kWh/a
Savingin %
19,5 %
33,2 %
44,7 %
35,0 %
Cost saving per year 3)
321 EUR
Emission reduction per year 4)
0,97 t CO2
» EC Unoboxes
Energy saving potential ofEC Unobox, Size 450
Operating point
Short-term 100%
Day operation 80%
Night operation 60%
Air volume
3.600 m³/h
2.880 m³/h
2.160 m³/h
Static pressure
280 Pa
180 Pa
100 Pa
Power EC 1)
533 W
289 W
138 W
Power AC 2)
691 W
477 W
290 W
Operation time per day
2 hours
10 hours
12 hours
Energy consumption per year
Total
Power consumption EC
389 kWh/a
1.055 kWh/a
604 kWh/a
2.048 kWh/a
Power consumptionAC
504 kWh/a
1.741 kWh/a
1.270 kWh/a
3.516 kWh/a
Saving
115 kWh/a
686 kWh/a
666 kWh/a
1.467 kWh/a
Savingin %
22,9 %
39,4 %
52,4 %
41,7 %
Cost saving per year 3)
293 EUR
Emission reduction per year 4)
0,89 t CO2