3RA6912-2A

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Accessories for SIRIUS 3RA6 compact starters

The following accessories are available specially for the 3RA6 compact starters:

• Infeed systemВ forВ 3RA6: see the node "Infeed System for 3RA6"
• AS-i add-on module: see the node "Add-on modules for AS-Interface"
• 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 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 terminal: Available with screw and spring-type terminals
• Main circuit terminal for mixed connection methods:
  Using the main circuit terminal for mixed connection methods it is also possible to switch from screw connection on the input side to spring-type connection on the outgoing side in the main circuit.
  This means for example that several compact starters can be mounted side by side and be cost-efficiently connected using the 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 3-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. Circuit breaker sizes S00 and S0 can also be integrated.

The busbars are suitable for between two and five 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 180В°) underneath the terminals of the respective last circuit breaker.

Size S00 and S0 3RV2 motor starter protectors can be combined in any way. The motor starter protectors/circuit breakers are supplied by appropriate feeder terminals. Special feeder terminals are required for constructing "Type E Starters" according to UL/CSA.

The 3-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 circuit breakers.

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 clearance 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 summation current of 630В 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 connected 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.

For more accessories such as incoming and outgoing terminals, flat copper profiles etc., see http://www.siemens.com/lowvoltage/lv10.

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 specially for the 3RA64, 3RA65 compact starters:

• Additional connection cables for side-by-side mounting of up to four compact starters
• Operator panel for on-site control and diagnostics of up to four compact starters coupled to each other