SIEMENS
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Siemens IC 10 · 2017
Load Feeders and Motor Starters for Use in the Control Cabinet
SIRIUS 3RA6 Compact Starters
General data
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Benefits
Advantages through energy efficiency
Overview of the energy management process
We offer you a unique portfolio for industrial energy manage-
ment, using an energy management system that helps to opti-
mally define your energy needs. We split up our industrial
energy management into three phases – identify, evaluate, and
realize – and we support you with the appropriate hardware and
software solutions in every process phase.
The innovative products of the SIRIUS industrial controls port-
folio can also make a substantial contribution to a plant's energy
efficiency
(see www.siemens.com/sirius/energysaving)
.
With the 3RA6 compact starters, control cabinets heat up less
because power losses have been minimized by operation:
•
Lower intrinsic power loss (than comparable motor feeders
with thermal overload trips) thanks to electronic current
analysis
•
Lower power losses (than conventional load feeders)
because there is only one switching point for short circuit and
operational switching
•
Lower control circuit power losses (compared with conven-
tional switching devices) as a result of electronic control of
switching points
•
Thanks to the above advantages, additional energy savings
are possible because less cooling is required (and a more
compact design is possible)
Product advantages
The SIRIUS 3RA6 compact starters offer a number of benefits:
•
Compact design saves space in the control cabinet
•
Little planning and assembly work and far less wiring thanks
to a single complete unit with one article number
•
Low variance and therefore low stock levels, with two wide
voltage ranges and five wide setting ranges for the rated
current
•
High plant availability through integrated functionalities such
as prevention of main contact welding and disconnection at
end of service life
•
Enhanced productivity through automatic device reset in case
of overload and differentiated detection of overload and short
circuit
•
Easy checking of the wiring and testing of the motor direction
prior to start-up thanks to optional control kits
•
Speedy replacement of devices thanks to removable termi-
nals with spring-type and screw connections in the main and
control circuit
•
Efficient power distribution through the related SIRIUS infeed
system for 3RA6
•
Direct connection of the motor feeder cable to the
SIRIUS infeed system for 3RA6 thanks to integrated PE bar
•
Connecting and looping through of incoming feeders up to a
cross-section of 70 mm²
•
When using the infeed system for 3RA6, possibility of directly
connecting the motor cable without intermediate terminals
•
Integration in Totally Integrated Automation thanks to the
optional connection to AS-Interface or IO-Link
The SIRIUS 3RA6 compact starters create the basis for
high-availability and future-proof machine concepts.
IC01_00244
© Siemens AG 2016