Pneumatically Delayed Auxiliary Switch; Description - Siemens SIRIUS 3RT Manual

9.21

Pneumatically delayed auxiliary switch

9.21.1

Description

In terms of its function, the pneumatically delayed auxiliary switch is comparable with solid-
state time-delayed auxiliary switch blocks. It is available for 3RT2.2 (size S0) power
contactors in the following versions.
Table 9- 35
Version
ON-delay
With OFF-delay
The pneumatically delayed auxiliary switch block is used if electronic components are not
desirable or in the absence of a control supply voltage.
SIRIUS - SIRIUS 3RT Contactors/Contactor assemblies
Manual, 09/2017, A5E03656507120A/RS-AE/006
Versions of the pneumatically delayed auxiliary switch
Adjustable time range
0.1 to 30 s
1 to 60 s
0.1 to 30 s
1 to 60 s
9.21 Pneumatically delayed auxiliary switch
Article number Circuit diagrams
3RT2926-2PA01
3RT2926-2PA11
3RT2926-2PR01
3RT2926-2PR11
Accessories
357