Siemens SQN72 Series Manual page 11

Technical data (continued)
End switches and
auxiliary switches
Smart Infrastructure
Lifetime
Weight (on average)
Permissible on time
Gear backlash between the actuator motor
and actuator shaft

Ex works

After 250,000 cycles
Switching voltage
Number of end switches
Number of auxiliary switches
Actuation
Engagement of the cam disks with fine
adjustment
Maximum permissible current load at cos  = 0.9:
(Values in brackets: short-term peak load for max. 0.5 s)

Circuit A
– Terminals 1, 2, 3, 8
– Terminals 4, 5
– Terminals 6, 7

Circuit B
– Terminals 1, 2, 3, 8
– Terminals 4, 5
– Terminals 6, 7

Circuit C
– Terminals 1, 2, 3, 4, 5
– Terminals 6, 7, 8

Circuit D
– Terminals 1, 2, 3, 8
– Terminals 4, 5
– Terminals 6, 7, 9, 10, 11

Circuit E
– Terminals 1, 2, 3, 4, 5
– Terminals 6, 7 , 8, 9, 10, 11
*)
*) In case of modulating operation, fuel valve 'BV2' is replaced by a gas control valve 'RV'
Please note!
When connecting a fuel valve: Max. 0.3 A, cosφ >0.8 inductive.
Safety-relevant applications are only available with Siemens burner controls!
250,000 start cycles (OFF  ON  OFF)
under load with the rated torque in the
entire rotation angle range.
Approx. 500 g
60%, maximum 3 minutes without
interruption
1.2° 0.3
1.5° 0.3°
24–250 V AC
2
Refer to Type summary
Via camshaft, color-coded cam disks, refer
to Connection diagrams.
Infinitely variable
Max. 0.5 A
Max. 2 A (5 A)
Max. 1 A (2 A)
Max. 0.5 A
Max. 2 A (5 A)
Max. 1 A (2 A)
Max. 0.5 A
Max. 1 A (2 A)
Max. 0.5 A
Max. 2 A (5 A)
Max. 1 A (2 A)
Max. 0.5 A
Max. 0.5
11/20
CC1N7802en
8/11/2021