SIEMENS
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Siemens IK PI · 2015
AS-Interface
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Motor starters for use in the control cabinet
SIRIUS 3RA6 compact starters
> Accessories
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Overview
Accessories for SIRIUS 3RA6 compact starters
The following accessories are available specially for the 3RA6
compact starters:
•
AS-i add-on module:
see page 4/92 onwards "AS-interface add-on modules"
•
External auxiliary switch blocks: Snap-on auxiliary switch as
versions 2 NO, 2 NC and 1 NO + 1 NC with screw or spring-
type terminals; 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 check the wiring and motor direction under conditions of
short-circuit protection
•
Adapter for screw fixing the compact starter, including push-
in lugs
•
Main circuit terminals: Available with screw and spring-type
terminals
•
Main circuit terminals mixed connection method:
With the main circuit terminals mixed connection method it is
also possible in the main circuit to switch from screw terminals
on the line side to spring-type terminals on the outgoing side.
This enables for example the side-by-side mounting of several
compact starters and their cost-efficient connection using
three-phase
busbars on the infeed side. The motors are then connected
directly 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 demanded 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 protector sizes 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 tags of an additional busbar
(rotated by 180°) underneath the terminals of the respective last
motor starter protector.
A connecting piece is required for the combination with 3RV1
motor starter protector size S00. Motor starter protectors S00
and S0 of the 3RV2 series can be combined in any way (without
a special connecting piece). The motor starter protectors are
supplied by appropriate infeed terminals. Special infeed termi-
nals are required for constructing "Type E Starters" according to
UL/CSA.
The three-phase busbar systems are finger-safe but empty
connection tags must be fitted with covers. They are designed
for any short-circuit stress which can occur at the output side of
connected SIRIUS 3RA6 compact starters or motor starter
protectors.
Busbar adapters for 60 mm systems
The compact starters are mounted directly with the aid of busbar
adapters on busbar systems with 60 mm center-to-center clear-
ance in order to save space and to reduce infeed times and
costs. These feeders are suitable for copper busbars with a
width from 12 to 30 mm. The busbars can be 4 to 5 mm or 10 mm
thick.
The 8US busbar system can be loaded with a maximum summa-
tion 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
directly onto the busbar system, and is thus connected both
mechanically and electrically at the same time.
Note:
For more accessories such as incoming and outgoing terminals,
flat copper profiles etc., see Catalog LV 10.
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.
© Siemens AG 2014