Siemens SIRIUS System Manual

3RT1/3RH1 contactors
SIRIUS System Manual
GWA 4NEB 430 0999-02b
3-65
Important
The time-delay auxiliary switch cannot be built onto contactor relays.
Installation/removal
Caution
Switch off the supply voltage to A1/A2 before you install or remove the time-
delay auxiliary switch block.
Figure 3-42: Time-delay auxiliary switch block (frame size S00)
Connection
When they are attached, the connections for the rated control supply volt-
age are connected to the contactor below by the integrated spring contacts
of the time-delay auxiliary switch.
Function
diagrams
Figure 3-43: Function diagrams of the time-delay auxiliary switches (frame size S00)
The time-delay auxiliary switch is
attached to the front of the contac-
tor.
2
1
3RT1.1
3RT1916-2E
3RT1916-2F
3RT1916-2G
t
On-delay
1 NO and 1 NC contact
Off-delay
Without auxiliary supply
1 NO and 1 NC contact
Star-delta function
1 NO contact, instantaneous
1 NO contact, delayed
t
NSK-7932
A1/A2
27/28
35/36
t
NSK-7955
A1/A2
Y 27/28
D
37/38
50 ms
t
A1/A2
27/28
35/36
200 ms
>

Siemens SIRIUS Specifications

General

Product brand name	Siemens
Series	SIRIUS
Coil Voltage	24V DC, 110V AC, 230V AC
Switching Capacity	Up to 10A
Mounting Type	DIN rail
Product designation	SIRIUS
Contact Material	Silver alloy
Contact Rating	Varies depending on the specific SIRIUS relay model (e.g., 6 A at 250 V AC, 10 A at 250 V AC)
Switching Voltage	Varies depending on the specific SIRIUS relay model (e.g., 250 V AC, 400 V AC)
Mechanical Life	Up to 10 million operations
Electrical Life	Up to 100, 000 operations
Operating Temperature	-25°C to +55°C
Protection Class	IP20
Size of relay base	Varies depending on the specific SIRIUS relay model