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
>
To Next Page
General
