Siemens
ÑÐÅÄÑÒÂÀ ÏÐÎÌÛØËÅÍÍÎÉ ÀÂÒÎÌÀÒÈÇÀÖÈÈ
îôèöèàëüíûé ïàðòíåð Ñèìåíñ
Êàòàëîã ÑÀ01 2017
àðõèâíûé
(4872) 700-366
skenergo@mail.ru

SIRIUS 3RA6 Compact Starters
3RA6 fuseless compact starters and infeed system for 3RA6

Integrated functionality

SIRIUS 3RA6 compact starters are a generation of special load feeders with the integrated functionality of a motor starter protector, contactor and electronic overload relay. In addition, various functions of optional mountable accessories (e. g. auxiliary switches, surge suppressors) are already integrated in the SIRIUS compact starter.

SIRIUS 3RA6 compact starters with integrated motor starter protector/circuit breaker, contactor and solid-state overload relay functionality

Applications

SIRIUS compact starters can be used wherever standard three-phase motors or resistive loads up to 32 A (approx. 15 kW/400 V) are directly started or switched.

The compact starters are not suitable for the protection of DC loads.

Approvals according to IEC, UL, CSA and CCC standards have been issued for the compact starters.

Low variance of devices

Thanks to wide setting ranges for the rated current and wide voltage ranges, the equipment variance is greatly reduced compared to conventional load feeders.

Very high operational reliability

The high short-circuit breaking capacity and defined shut-down when the end of service life is reached means a very high level of operational reliability that would otherwise have only been possible with considerable additional outlay. This sets the SIRIUS compact starter apart from devices with similar functionality.

Safe disconnection

The auxiliary switches (NC contacts) of the 3RA6 compact starters are designed as mirror contacts. This enables their use for safe disconnection - e.g. EMERGENCY STOP up to SIL 1 (IEC 62061) or PL c (ISO 13849-1) or, if used in conjunction with an additional infeed contactor, up to SIL 3 (IEC 62061) or PL e (ISO 13849-1).

Communications integration through AS-Interface

To enable communications integration through AS-Interface there is an AS-i add-on module available in several versions for mounting instead of the control circuit terminals on the SIRIUS compact starter.

The design of the AS-i add-on module permits a group of up to 62 feeders with a total of four cables to be connected to the control system. This reduces wiring work considerably compared to the parallel wiring method.

Communications integration using IO-Link

Up to four compact starters in IO-Link version (direct-on-line and reversing starters) can be connected together and conveniently ?linked to the IO-Link master through a standardized IO-Link connection.

The SIRIUS 4SI electronic modules are used e.g. as IO-Link masters for connection to the SIMATIC ET 200S distributed I/O system.

The IO-Link connection enables a high density of information in the local range.

The diagnostics data of the process collected by the 3RA6 compact starter, e.g. short circuit, end of service life, limit position, etc., are not only indicated on the compact starter itself but also transmitted to the higher-level control system through IO-Link

Thanks to the optionally available operator panel, which can be installed in the control cabinet door, it is easy to control the 3RA6 compact starters with IO-Link from the control cabinet door.

Permanent wiring/easy replacement

Using the SIRIUS infeed system for 3RA6 it is possible to carry out the wiring in advance without a compact starter needing to be connected.

A compact starter is very easily replaced simply by pulling it out of the device without disconnecting the wiring.

Even with screw connections or mounting on a standard mounting rail there is no need to disconnect any wiring (on account of the removable main and control circuit terminals) in order to replace a compact starter.

Consistent solution from the infeed to the motor feeder

The SIRIUS infeed system for 3RA6 with integrated PE bar is offered as a user-friendly possibility of feeding in summation currents up to 100 A with a maximum conductor cross-section of 70 mm? and connecting the motor cable directly without additional intermediate terminals.

Screw and spring-type terminals

The SIRIUS compact starters and the SIRIUS infeed system for 3RA6 are available with screw and spring-type connections.

System configurator for engineering

A free system configurator is available to reduce further the amount of engineering work for selecting the required compact starters and matching infeed.

Types of infeed for the 3RA6 fuseless compact starters

On the whole four different infeed possibilities are available:

  • Parallel wiring
  • Use of three-phase busbars (combination with SIRIUS motor starter protectors and SIRIUS contactors possible)
  • 8US busbar adapters
  • SIRIUS infeed system for 3RA6

To comply with the clearance and creepage distances demanded according to UL508 there are the following infeed possibilities:

Type of infeed

Infeed terminal (according to UL 508, type E)

Article number

Parallel wiring

Terminal block for "Self-Protected Combination Motor Controller
(Type E)"

3RV2928-1H

Three-phase busbars

Three-phase infeed terminal for constructing "Type E Starters", UL 508

3RV2925-5EB

Infeed system for 3RA6

Infeed on left, 50/70 mm2, screw terminal with 3 sockets, outgoing terminal with screw/spring-type connections, including PE bar

3RA6813-8AB
(screw terminals),

3RA6813-8AC (spring-type terminals)



SIRIUS 3RA6 compact starters

SIRIUS 3RA6 compact starters are universal motor feeders according to IEC/EN 60947-6-2. As control and protective switching devices (CPS) they can connect, convey and disconnect the thermal, dynamic and electrical loads from short-circuit currents up to Iq = 53 kA, i.e. they are practically weld-free. They combine the functions of a motor starter protector, a contactor and a solid-state overload relay in one enclosure. 45-mm-wide direct-on-line starters and 90-mm-wide reversing starters are available as variants.

The reversing starter version comes with not only an internal electrical interlock but also with a mechanical interlock to prevent simultaneous actuation of both directions of rotation.

The compact starters have isolating features in accordance with IEC 60947.2 and can be used as disconnector units (main control switch according to EN 60204 or DIN VDE 0113). Isolation is effected by moving the handle into the "OFF" position; disconnection by means of the control contacts is not enough.

3RA6 fuseless compact starters are available in five current setting ranges. The 3RA61 and 3RA62 have two control voltage ranges (AC/DC), and the 3RA64 and 3RA65 have one control voltage range (DC):

Current setting range / A

At 400 V AC for three-phase motors
standard output P / kW

Rated control supply voltage for 3RA61, 3RA62 compact starters
/V AC / DC

Rated control supply voltage for 3RA64, 3RA65 compact starters
for IO-Link / V DC

0.1 ... 0.4

0.09

24
110 ... 240

24

0.32 ... 1.25

0.37

1 ... 4

1.5

3 ... 12

5.5

8 ... 32

15



Note:

The 3RA2 load feeders can be used for fuseless load feeders > 32 A up to 65 A. Load feeders in size S3 up to 100 A are available for self-assembly.

The SENTRON 3VL circuit breakers and the SIRIUS 3RT contactors can be used for fuseless load feeders > 100 A.

Operating conditions

The SIRIUS 3RA6 compact starters are suitable for use in any climate. They are intended for use in enclosed rooms in which no severe operating conditions (such as dust, caustic vapors, hazardous gases) prevail. Suitable covers must be provided for installation in dusty and damp locations.

The SIRIUS compact starters are generally designed to degree of protection IP20. The permissible ambient temperature during operation is -20 ... +60°C.

The operational short-circuit current ICS according to IEC/EN 60947-6-2 is 53 kA at 400 V.

Note:

The maximum permissible short-circuit currents of the device versions for the various line system configuration and currents are available upon request from Technical Assistance

Tel.: +49 (911) 8 95-59 00

E-Mail: technical-assistance@siemens.com.

Overload tripping times

The tripping time in the event of overload can be set on the device to normal starting conditions (CLASS 10) and to heavy starting conditions (CLASS 20). As the breaker mechanism still remains closed after an overload, resetting is possible by either local manual reset or auto reset after 3 minutes cooling time.

With auto reset, there is no need to open the control cabinet.

Diagnostics options

The compact starter provides the following diagnostics options:

  • With LEDs:
    • Connection to the control voltage
    • Position of the main contacts
  • With mechanical indication:
    • Tripping due to overload
    • Tripping due to short circuit
    • Tripping due to malfunction (end of service life reached because of worn switching contacts or a worn switching mechanism or faults in the control electronics)

These states can also be evaluated in the higher-level control system:

  • With parallel wiring using the integrated auxiliary and signaling switches of the compact starter
  • With AS-Interface or IO-Link in even greater detail using the respective communication interface

Four complement versions for 3RA61 and 3RA62 compact starters

  • For standard mounting rail or screw fixing:
    Basic version including 1 pair of main circuit terminals and 1 pair of control circuit terminals
  • For standard mounting rail or screw fixing when using the AS-i add-on module:
    without control circuit terminals because the AS-i add-on module is plugged on instead
  • For use with the infeed system for 3RA6:
    without main circuit terminals because they are supplied with the infeed system and the expansion modules
  • For use with the infeed system for 3RA6 and the AS-i add-on module:
    without terminal complement (also for reordering when replacing the compact starter)

The control circuit terminals are always required by the compact starters for IO-Link; the main circuit terminals depend on the use of the infeed system.

More components of the 3RA6

Apart from the control supply voltage, "Overload" (1 W) and "Short circuit / Function fault" (1NC) signaling contacts are already integrated into the 3RA61/3RA62 – and lockable via two 6-pole removable control current circuit terminals. The 3RA61 has two auxiliary contacts (1 NO + 1 NC) for displaying the position of the main contacts. Unlike the 3RA61 direct-on-line starter, the 3RA62 reversing starter has one auxiliary contact (1 NO) per direction of rotation per main contact.

The direct-on-line starters 3RA61 and 3RA64 have a slot for an optional auxiliary switch block (alternatively 2NO, 2NC or 1NO+1NC), the reversing starters 3RA62 and 3RA65 have two sockets (auxiliary switch blocks, see accessories).

Positively-driven operation of the auxiliary contacts

Positively-driven operation between individual auxiliary circuits exists for the compact starter in the version as a direct-on-line starter for parallel wiring (3RA61) between the auxiliary circuits of the NC contacts (NC 21-22) and the NO contacts (NO 13-14) in the basic unit.

In addition, the optional auxiliary switch block offers positively driven contacts in the 3RA6913-1A version, each with one normally closed contact and one normally open contact.

Article No. scheme

Product versions

 

Article number

 

Compact starters

 

3RA6

?

?

?

?

?

?

?

?

 

Product function

Direct-on-line starter

 

1

2

0

      

for motor standard output 0.09 ... 15 kW1)

Reversing starter

 

2

5

0

      

for motor standard output 0.09 ... 15 kW1)

Direct-on-line starter for IO-Link

 

4

0

0

      

for motor standard output 0.09 ... 15 kW1)

Reversing starter for IO-Link

 

5

0

0

      

for motor standard output 0.09 ... 15 kW1)

Infeed system

 

8

         

Accessories

 

9

         
  • Auxiliary switches
  

1

?

       
  • Terminals
  

2

?

       
  • IO-Link accessories
  

3

?

       
  • Fixing elements
  

4

?

       
  • Control kit
  

5

?

       

Connection system

No terminals

     

0

     

Screw terminals

     

1

     

Spring-type terminals

     

2

     

Setting range

0.1 ... 0.4 A

      

A

    

0.32 ...1.25 A

      

B

    

1... 4 A

      

C

    

3 ... 12 A

      

D

    

8 ... 32 A

      

E

    

Rated control supply voltage

24 V DC

       

B

4

 

for direct-on-line/reversing starters for IO-Link

24 V AC/DC

       

B

3

 

for direct-on-line/reversing starters

110 ... 240 V AC/DC

       

P

3

 

for direct-on-line/reversing starters

Terminal complement variant

None

         

0

without main and control circuit terminals

1/1

         

2

with 1 pair of main circuit and 1 pair of control circuit terminals

0/1

         

3

without main circuit terminals, with 1 pair of control circuit terminals

1/0

         

4

with 1 pair of main circuit terminals, without control circuit terminals

Special versions

            

Example

 

3RA6

1

2

0

0

A

B

3

0

 


1) Standard three-phase motor, basis 4-pole at 400 V AC, the actual startup characteristics of the motor as well as its rated data are important factors here.

Note:

The Article No. scheme shows an overview of product versions for better understanding of the logic behind the article numbers. For your orders please use the article numbers quoted in the selection and ordering data.

















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