Siemens SIRIUS 3RT Series System Manual page 448

SIRIUS 3RV2 motor starter protectors
4.9 Accessories
Expansion plug (3RV2917-5BA00)
The expansion plug is used to establish the electrical connection of adjacent 3-phase
busbars. The current carrying capacity of this plug is 63 A. An expansion plug is also
supplied with each 3-phase busbar for system expansion. Additional expansion plugs are,
therefore, only required as spare parts.
Extra-wide expansion plug (3RV2917-5E)
The extra-wide expansion plug establishes the electrical connection between two 3-phase
busbars. As such, it performs the same function as the 3RV29 17-5BA00 expansion plug;
the electrical characteristics (e.g. current carrying capacity 63 A) are identical.
This 3RV29 17-5E expansion plug is 10 mm wider than the 3RV29 17-5BA00 expansion
plug and as such there is a distance of 10 mm between the connected 3-phase busbars
when the plug is connected. This distance can be used to lay the auxiliary and control
current wiring ("wiring duct"). Motor starter protectors and contactors can be wired from
below, which means that the complete cable duct above the system can be omitted.
End cover (3RV2917-6A)
The end cover is used to cover the 3-phase busbars at the open end of the system. This
cover is therefore only required one for each system. An end cover is supplied with each 3-
phase busbar with infeed. Additional end covers are, therefore, only required as spare parts.
⑤
Connector
The connectors are used to establish the electrical connection between the 3-phase busbar
and the 3RV2 motor starter protector. There are various versions:
● 3RV2 motor starter protector, size S00
– With screw terminals (3RV2917-5CA00)
– With spring-loaded terminals (3RV2917-5AA00)
● 3RV2 motor starter protector, size S0
– With screw terminals (3RV1927-5AA00)
– With spring-loaded terminals (3RV2927-5AA00)
Contactor base (3RV2927-7AA00)
The contactor bases can be used to install load feeders in the system. The contactor bases
are suitable for size S00 and S0 contactors with spring-loaded terminals and screw terminals
and are simply snapped onto the 3-phase busbars. Both direct-on-line and reversing starters
are possible. One contactor base is required for direct-on-line starters and two for reversing
starters.
To assemble load feeders for reversing feeders, the contactor bases can be arranged next to
one another (overall width 90 mm). (In this case, mechanical interlocking of the contactors is
possible.) The contactor bases are also suitable for soft starters in sizes S00 and S0 with
screw connection.
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SIRIUS Innovations
System Manual, 01/2011, A8E56203870002-03