User's Manual
For Operation in the Control Cabinet
SIRIUS 3RA6 Compact Starters
Accessories
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SIRIUS Innovations Supplement 2011
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Overview
Accessories for SIRIUS 3RA6 compact starters
The following accessories are available for the 3RA6 compact
starters:
• AS-i add-on module:
see AS-Interface Add-On Modules for
3RA6, page 6/50
• External auxiliary switch blocks: Snap-on auxiliary switch as
versions 2 NO, 2 NC and 1 NO +1 NC with screw or spring-
type connections; the contacts of the auxiliary switch block
open and close jointly with the main contacts of the compact
starter. The NC contacts are designed as mirror contacts.
• Control kit: aid for manually closing the main contacts in order
to evaluate the wiring and motor direction under conditions of
short-circuit protection
• Adapter for screw mounting the compact starter, including
push-in lugs
• Main circuit terminals: Available in screw and spring-type ter-
minals
• Main circuit terminals for mixed connection method:
With the main circuit terminal for the mixed connection method
it is also possible in the main circuit to change over from the
screw connection method on the incoming side to the spring-
type connection method on the outgoing side.
This enables for example the side-by-side mounting of several
compact starters and their cost-effective connection using the
three-phase busbars on the infeed side. The motors are then
directly connected by the quick and reliably contacting
spring-type connection method.
Accessories for UL applications
The terminal block for "Self-Protected Combination Motor
Controller", type E is available for complying with the clearance
and creepage distances according to UL 508.
Accessories for infeed using three-phase busbar systems
The three-phase busbars can be used as an easy, time-saving
and clearly arranged means of feeding SIRIUS 3RA6 compact
starters with screw connection. Motor starter protectors size S00
and S0 can also be integrated.
The busbars are suitable for between 2 and 5 devices. However,
any kind of extension up to a maximum summation current of
63 A is possible by clamping the terminals of an additional bus-
bar (rotated by 180°) underneath the terminals of the respective
last motor circuit protector.
A connecting piece is required for the combination with motor
starter protector size S00. S00 and S0 motor starter protectors of
the 3RV2 series do not require the additional connecting piece.
The motor starter protectors are supplied by appropriate feeder
terminals. Special feeder terminals are required for constructing
"Type E Starters" according to UL/CSA.
The three-phase busbar systems are finger-safe but empty
connection terminals must be fitted with covers. They are de-
signed for any short-circuit stress which can occur at the output
side of connected SIRIUS 3RA6 compact starters or motor
starter protectors.
8US Fast Bus busbar adapters for 60 mm systems
The compact starters are mounted directly with the aid of busbar
adapters on the Fast Bus busbar systems with 60 mm center-to-
center clearance in order to save space and to reduce infeed
times and costs. These starters are suitable for copper busbars
with a width from 12 to 30 mm. The busbars can be 5 mm or
10 mm thick.
The 8US Fast Bus busbar system can be loaded with a maxi-
mum summation current of 630 A.
The "reversing starter" version requires a device holder along
side the busbar adapter for lateral mounting.
The compact starters are snapped onto the adapter and con-
nected on the line side. This prepared unit is then plugged di-
rectly onto the busbar system, and is thus connected both me-
chanically and electrically at the same time.
For more accessories such as incoming and outgoing terminals,
flat copper profiles etc., see the Controls 2010 Catalog,
Section 5 "8US Busbar Systems".
Accessories for operation with closed control cabinet doors
Door-coupling rotary operating mechanisms for standard and
emergency-stop applications are available for operating the
compact starter with closed control cabinet doors.
Accessories for SIRIUS 3RA6 compact starters in IO-Link
version
The following accessories are available specifically for the
3RA64, 3RA65 compact starters:
• The 4SI SIRIUS solid-state module as IO-Link master allows
for the simple and economical connection of SIRIUS controls
with IO-Link (e.g up to four groups of 4 compact starters) to
the multifunctional SIMATIC ET 200S distributed I/O system.
• Additional connection cables for side-by-side mounting of up
to 4 compact starters
• Operator panel for local control and diagnostics of up to
4 compact starters coupled to each other
© Siemens AG 2011