38 of 120
MVA 02 rev 5 - December 2017
ACOUSTIC POWER* EMITTED Lw(A) (dBA)
(1/2)
Axial fans
– series with aluminium impeller hub
size
ES
1
EF
1
EF
vers.9
EB
EFR
2
EK
2
EQ
2
EP
2
ET
3
250
93
280
97
315
100
100
99
99
75
74
79
355
100
100
98
102
103
77
77
85
400
99
99
98
102
106
78
78
91
79
450
102
102
99
103
109
83
83
93
500
102
102
100
103
112
86
84
96
85
560
107
107
101
105
116
89
88
87
630
108
108
101
105
119
82
92
95
710
104
104
102
106
106
88
99
800
104
104
103
106
109
89
90
900
110
110
107
111
97
98
1000
110
110
106
110
99
99
1120
111
111
107
111
1250
107
107
106
110
1400
108
108
106
111
* Uncer 3 dB
Chart 3-3 Acoustic power emitted Lw(A) (dBA)
