Siemens SQN72 Series - Page 8

8/20
Smart Infrastructure CC1N7802en
8/11/2021
Type summary (further types on request)
SQN73 actuators / direction of rotation
6)
right
Di
agram no.
Shaft ¹) no.
Running time
at 50 Hz 2)
for 90° (s)
Loading torque
4)
(max.) Nm
Holding torque
Nm
Auxili
ary switch 5)
P
iece
Relay
Piece
Potentiometer
7)
Housing length ¹)
mm
Types for mains voltage / mains frequency
230 V AC
3)
+10%/-15%
50
–
60 Hz
Article no.
Type
B
0
12
2.5
1.2
2
3
x
117
S55454
-
D345
-
A100
SQN73.4B4A20
Key
1) Refer to
D
imensions
2) Specifications apply to 50 Hz; at 60 Hz, the running times are about 17% shorter.
3) Approx. 20% torque reduction with undervoltage
4) Under rated conditions, under extreme conditions (e.g., +60°C, 230 V AC -15%) approx. -25%
5) Free auxiliary switches (along with 2 end switches)
6) When looking at the shaft and control voltage at end switch I
7) Directly suitable for potentiometer installation, refer to the
Potentiometer installation
chapter
8) On request