Siemens SIRIUS 3RT Series System Manual page 447

3-phase busbars with infeed (3RV2917-1A, 3RV2917-1E)
A 3-phase busbar with infeed is required for connecting the energy supply. These modules
comprise an infeed module and 2 slots for each motor starter protector. A choice of two
versions with infeed on the left- or right-hand side is available. Power is fed in via spring-
loaded connections. The spring-loaded terminals support an infeed of up to 25 mm2 with end
sleeve. An end cover is also supplied with every module.
3-phase busbars for system expansion (3RV2917-4A, 3RV2917-4B)
The 3-phase busbars for system expansion enable the system to be expanded. Users can
choose modules with 2 or 3 slots. The system can be expanded as required up to a
maximum current carrying capacity of 63 A. An expansion plug is also supplied with each
module.
SIRIUS Innovations
System Manual, 01/2011, A8E56203870002-03
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SIRIUS 3RV2 motor starter protectors
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3a
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4.9 Accessories
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