Axial fans

EC axial fans
Ø 250
– Material:
Wall ring: Die-cast aluminium
Blades: Sheet steel, coated in black
Rotor: Coated in black
– Number of blades: 7
– Direction of air flow: "V", exhaust over
struts
– 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
– Technical features: Control input 0-10 VDC /
PWM, tach output, polarity and locked rotor
protection
– EMC:
Interference emission acc. to EN 61000-6-3
Interference immunity acc. to EN 61000-6-2
– Connection leads: Terminal strip
– Protection class: I
– Product conforming to standard: EN 60950-1
– Approvals: VDE, UL, CSA;
B (48 VDC) with CCC
General
information
AC axial fans
AC axial
S series
AC axial
K series
Nominal data
Curve
Nominal voltage
Voltage range
Air flow
Speed/rpm
Power input
Current draw
Sound pressure level
Max. operative range
Perm. amb. temp.
Mass
AC axial
A series
Type Motor VDC VDC m 3 /h rpm W A dB(A) Pa °C kg
W1G250-HH37 -52 M1G 074-BF B 24 16-28 1920 2750 105 5.00 70 — -25 to +60 2.5
W1G250-HH67 -52 M1G 074-BF B 48 36-57 1920 2750 105 2.60 70 — -25 to +60 2.5
subject to alterations
EC axial fans
B 1’
B
B
B
B
B
2’
3’
4’
1
2
n
[rpm]
2920
2800
2680
2600
2750
2630
P 1
[W]
129
132
135
139
105
110
Lp A
[dB(A)]
71
72
71
72
70
69
tL
[%]
—
63
60
45
—
63
B
B
B
B
B
B
3
4
5
6
7
8
n
[rpm]
2520
2440
2610
2320
2230
2170
P 1
[W]
111
114
73
75
78
80
Lp A
[dB(A)]
69
70
66
67
67
68
tL
[%]
60
45
—
63
60
45
280
2,6
12
80 ±0,3
7
EC axial
S series
Q-motor
Curves
[Pa]
240
200
160
120
80
40
0,2 0,4 0,6 0,8 [in H 2O]
UR
4'
UN
4
8
3'
3
7
2'
2
6
5 1
0 400 800
400 800 1200 1600
B
1'
[CFM]
[m 3 /h]
295
320
Ø5,4 +0,2
PE (1)(2) – +
4
"V" ❯
(1) Control input
(2) Tach output
Technology Accessories EC-SYSTEMS ESM
Guard grille
p. 369
183
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