Roof fan with vertical discharge and acoustic insulation (40 mm)
Application
These fans are used for ventilation of industrial kitchens and for air extraction up to 120°C
Composition
Casing made out of AIMg3 aluminium that is resistant to seawater with protection grille.
40 mm insulation with fire class A1 according to DIN 4102-1
Turbine with backward curved impeller with blades that are made of galvanised steel plate up to type 280 and of aluminium for all other types, balanced G6.3 according to DIN ISO 1940.
External rotor motor with speed control and overheat protection.
Voltage: 230 Vac, 1 ph and 400 Vac 3 ph.
Swivel motor compartment.
Insulation class F
Motor protection class: IP54
Security switch
Equipped with integrated drain pan and evacuation.
Accessories
Acoustically insulated roof socket, type RAC-I
Roof socket, type RC-I
Adapter plate, type RAP
Backdraught shutter, type RAS
Matching flange, type RIF
Flexible connector, type RFC
Potentiometers 0-10V, type ESCP010
Differential pressure regulators, type DMD-C
Order example
KRFI-SN 400 E4 30
KRFI-SN = Type of fan
400 = Size
E = 1x230V
4 = Number of poles
30 = Version
Air performance data
Q [m³/h]
50 Pa
100 Pa
150 Pa
200 Pa
250 Pa
300 Pa
400 Pa
500 Pa
600 Pa
700 Pa
KRFI-SN 225 EC 30
2326
2290
2249
2202
2149
2091
1976
1888
1807
1702
KRFI-SN 250 EC 30
2640
2591
2541
2494
2449
2407
2323
2224
2097
1941
KRFI-SN 280 EC 30
3168
3097
3022
2948
2879
2813
2675
2518
2340
2117
KRFI-SN 315 EC 30
4023
3971
3916
3858
3799
3744
3637
3527
3397
3249
KRFI-SN 355 EC 30
5448
5324
5179
5034
4906
4802
4630
449
4239
4008
KRFI-SN 400 EC 30
5561
5462
5348
5222
5094
4968
4716
4425
4016
3593
KRFI-SN 450 EC 30
7076
6873
6648
6416
6190
5977
5580
4117
4573
3806
Selection curves
Technical data
U [V]
P [W]
I [A]
SCP
ŋt [%]
tm [°C]
tu [°C]
to [°C)
n [rpm]
Lwa [dB(A)]
Lwa 5
Lwa 6
Lwa 2
KRFI-SN 225 EC 30
1 x 230
662
3.1
ESCP010
52.4
120
40
-20
3998
86
84
-
KRFI-SN 250 EC 30
1 x 230
770
3.6
ESCP010
49.9
120
40
-20
3640
89
87
-
KRFI-SN 280 EC 30
1 x 230
796
3.7
ESCP010
54.5
120
40
-20
3000
87
86
-
KRFI-SN 315 EC 30
1 x 230
1329
9.6
ESCP010
53.5
120
50
-20
3100
91
89
-
KRFI-SN 355 EC 30
1 x 230
1418
10.1
ESCP010
59
120
50
-20
2550
88
86
-
KRFI-SN 400 EC 30
1 x 230
1196
8.8
ESCP010
56.6
120
50
-20
2000
86
87
-
KRFI-SN 450 EC 30
1 x 230
1240
8.9
ESCP010
59.9
120
50
-20
1640
86
83
-
SCP = Potentiometer 0-10V
ŋt = Maximum total efficiency
Tm = Maximum air temperature
Tu = Maximum ambient temperature
To = Minimum operating temperature
Lwa 2 = Casing sound power level
Lwa 5 = Sound power level @inlet
Lwa 6 = Sound power level @outlet
The sound power levels are measured according to DIN 45635 part 2 & 38