EC axial fans
24 /48 VDC
S series, Ø 250
– Material:
Guard grille: Steel, phosphated and coated in black plastic
Wall ring: Sheet steel, pre-galvanised and coated in black plastic
Blades: Sheet steel, coated in black
Rotor: Coated in black
– Number of blades:
7 for direction of air flow "V", 9 for direction of air flow "A"
– Direction of rotation:
Counter-clockwise, seen on rotor
– Type of protection:
IP 42
– Insulation class:
"B"
– Mounting position:
Any
– Condensate discharges:
None
– Mode of operation:
Continuous operation (S1)
– Bearings:
Maintenance-free ball bearings
Max. operative range
Sound pressure level
Perm. amb. temp.
Nominal data
Type
*1G 250
*1G 250
subject to alterations
Motor
M1G 074-BF
M1G 074-BF
A
VDC
24
48
VDC
16-28
36-57
m
3
/h
1920
1920
rpm
2750
2750
W
105
105
A
5.00
2.60
dB(A)
70
70
Pa
—
—
°C
-25 to +60
-25 to +60
kg
1.6
1.6
p. 420
G)
G)
A
Curves
[Pa]
[in H O]
A
A
A
A
A
1’
2’
3’
4’
1
2
3
4
5
6
7
8
n
[rpm]
2920
2800
2680
2600
2750
2630
2520
2440
2610
2320
2230
2170
P
1
[W]
129
132
135
139
105
110
111
114
73
75
78
80
Lp
A
[dB(A)]
71
72
71
73
70
69
69
71
66
67
67
68
[%]
—
63
60
45
—
63
60
45
—
63
60
45
240
200
0,8
2
A
U
R
A
A
160
0,6
4'
A
A
A
4
A
0,4
A
8
3'
3
7
0,2
2
6
2'
U
N
120
80
40
5
0
400
800
1
1'
[CFM]
[m
3
/h]
400
800
1200
1600
190
Electr. connection
tL
Nominal voltage
Voltage range
Mass without
attachments
Current draw
Power input
Speed/rpm
Air flow
Curve
– Technical features:
• Tach output
• Control input 0-10 VDC / PWM
• Polarity and locked rotor protection
– EMC:
Interference emission acc. to EN 61000-6-3
Interference immunity acc. to EN 61000-6-2
– Cable exit:
Variable
– Protection class:
I
– Product conforming to standard:
EN 60950-1
– Approvals:
UL, CSA
Direction of air flow
Without
attachments
Í
"V"/ "A"
U
With full
round nozzle
(1)
Í
"V"/ "A"
U
With guard grille
for full nozzle
Í
"V"/ "A"
U
With guard grille
for short nozzle
Í
"V"/ "A"
U
"V"
"A"
"V"
"A"
A1G
A1G
A1G
A1G
250-AH37
250-AI37
250-AH67
250-AI67
-52
-52
-52
-52
W1G 250-CH37
W1G 250-CI37
W1G 250-CH67
W1G 250-CI67
-52
-52
-52
-52
S1G
S1G
S1G
S1G
250-BH37
250-BI37
250-BH67
250-BI67
-52
-52
-52
-52
S1G
S1G
S1G
S1G
250-AH37
250-AI37
250-AH67
250-AI67
-52
-52
-52
-52
(1) Increased noise levels in "V" direction of air flow
191
Drawings
p. 192 f.
Guard grille
p. 362 f.
Wall ring
p. 372 f.
Electr. connection
p. 420
EC axial fans
24 /48 VDC
S series, Ø 250, drawings of directions of air flow "V" and "A"
Without attachments
Depth of
screw
max.
6
mm
Type
21
±5
35
±3
Brass lead tips
±0
,1
5
M4
58
A1G
A1G
A1G
A1G
250-AH37
250-AI37
250-AH67
250-AI67
-52
-52
-52
-52
"V"
"A"
"V"
"A"
Ø92
Ø251
+1
-2
6
85
450
+20
65
±1
Í
"V"
"A"
U
32,7
With full round nozzle
9
87
6
˚
6x
60
Type
15˚
W1G 250-CH37
W1G 250-CI37
W1G 250-CH67
W1G 250-CI67
-52
-52
-52
-52
"V"
"A"
"V"
"A"
1,25
Ø257
Ø320
7
Í
"V"
"A"
U
295
With guard grille for full nozzle
Type
3,9
4,6
S1G
S1G
S1G
S1G
250-BH37
250-BI37
250-BH67
250-BI67
-52
-52
-52
-52
"V"
"A"
"V"
"A"
Í
"V"
"A"
U
192
290
With guard grille for short nozzle
27
18
±5
6,5
Type
S1G
S1G
S1G
S1G
250-AH37
250-AI37
250-AH67
250-AI67
-52
-52
-52
-52
"V"
"A"
"V"
"A"
3,9
45
Í
"V"
"A"
U
300
193
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