Siemens SIRIUS 3RA6 System Manual page 163

Installing a spring-loaded infeed with 2-slot or 3-slot extension module on a standard mounting rail
The spring-loaded infeed and extension module are 2 separate components.
The 2-slot and 3-slot extension modules can be mounted to the right or left or to the right and
left of the spring-loaded infeed.
Extension modules installed
①
②
③
Figure 7-4
NOTICE
Damage to the extension connector!
The maximum rated current for extension connectors is 63 A. If the rated current is
exceeded, the extension connector will be damaged beyond repair.
Make sure that the extension connector is never subjected to a current higher than 63 A.
Hazardous voltage!
Will cause death or serious injury.
If extension connectors or end covers are missing, direct contact with live parts is possible.
The electrical interface for the expansion module must be fitted with an extension connector
or an end cover at all times when the power supply is energized.
When installing/removing an extension connector or an end cover the system power supply
must be switched off.
SIRIUS 3RA6 compact starter
System Manual, 09/2014, NEB560060102000/RS-AA/006
To the left of the spring-loaded infeed
To the right of the spring-loaded infeed
To the right and left of the spring-loaded infeed
Installation scenarios involving the spring-loaded infeed
DANGER
Accessories
7.7 Infeed system for 3RA6
163