Basic Documentation

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Siemens Rotary actuators without spring return GBB/GIB..1 CE1Z4626en
Smart Infrastructure Engineering notes 2019-11-28
The following chart (example EMCO) allows for determining the total torque for this air
damper type.
10
9
8
7
6
5
4
3
2
1
0
200 400 600 800 1000 1200 1400 1600 1800 2000
20
1600
1200
800
15
400
15105
105
2010
10
1
3
3
5
1
6
6
5
1
9
9
5
1
0
0
5
6
7
5
3
7
5
2
0
0
0
1
0
0
0
0
Friction torque (excl. air influence) [Nm]
Damper width B [mm]
Total torque [Nm]
Damper width B [mm]
4621D01en
T
o
t
a
l
p
r
e
s
s
u
r
e
[
P
]
D
a
m
p
e
r
h
e
i
g
h
t
H
[
m
m
]
Damper for blinds:
Width = 1200 mm
Height = 1005 mm
Total pressure = 2000 Pa
The total torque of about 10 Nm results from the chart.
Determine your type of actuator from the table below:
If
[
]
1
SF
Nmtorquetotal
then use type
£ 15 Nm GEB..1 (15 Nm)
£ 25 Nm GBB..1 (25 Nm)
2
£ 30 Nm 2 x GEB..1 (2 x 15 Nm)
3
£ 35 Nm GIB..1 (35 Nm)
4
£ 70 Nm 2 x GIB..1 (2 x 35 Nm)
5
1
Safety Factor SF:
When calculating the number of actuators, remember to include nondefinable
variables such as slight misalignment, damper age, etc., as a safety factor. We
recommend a total safety factor of 0.8.
Apply the same factor when calculating the actuator torque by the torque rating.
If the required actuator torque is greater than 15 Nm, you can use the following:
2
One actuator of type series GBB..1, or
3
Two actuators (tandem-mounted powerpack) of type series GEB13..1, GEB33..1, or
4
One actuator of type series GIB..1 .
5
If the actuator torque is greater than 35 Nm, two actuators of type series GIB..1 can
mechanically be connected and mounted on the damper shaft.
(See data sheets N4621, N4626, and N4699).
Sizing chart
Example
Determining the
actuator type
Notes