Contactors and Contactor Assemblies SIRIUS Contactor ...cmsapps.sea.siemens.com/controls/icc2010/10IndControl_ pdfs/10IC_… · Contactors and Contactor Assemblies ... star-delta

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Contactors and Contactor AssembliesContactor Assemblies for Switching MotorsSIRIUS

Contactor assembliesfor WYE-delta starting

Siemens / Industrial Controls Previous folio: 2/73

WYE-delta starting can only be used either if the motor normally operates in a d (delta) connec-tion or starts softly or if the load torque during * starting is low and does not increase sharply. On the *step the motors can carry approximately 50% (class KL 16) or 30% (class KL 10) of their rated torque; the starting torque is approximately 1/3 of that during direct on-line start-ing. The starting current is approximately 2 to 2.7 times the rated motor current.

The changeover from * to dmust not be effected until the motor has run up to rated speed. Drives which require this changeover to be performed earlier are unsuitable for WYE-delta starting.

The ratings given in the above table are only applicable to mo-tors with a starting current ratio of IA ≤8.4 × IN and using either a 3RT19 16-2G or 3RT19 26-2G solid-state time-delay auxiliary switch block with a WYE-delta function or a 3RP1574 WYE-delta time-delay relay with a dead interval of approximately 50 ms on reversing.For the circuit diagrams for the main and control circuits, see page 2/161. The size selected for the installation kits for WYE-delta starting is determined by the line contactor.

Components for customer as-semblyInstallation kits with wiring con-nectors and, if necessary, mechanical connectors are available for contactor assem-blies for WYE-delta starting. Contactors, overload relays, star-delta time-delay relays and auxiliary switches for the elec-trical interlock – if required also feeder terminals, mechanical interlocks 1) and baseplates – must be ordered separately.The wiring installation kits for sizes S00 and S0 contain the top and bottom main conduct-ing path connections between the line and delta contactors (top) and between the delta and WYE contactors (bottom).In the case of sizes S2 to S12 only the bottom main conduct-ing path connection between the delta and WYE contactors is included in the wiring connec-tor, owing to the larger conduc-tor cross-section at the infeed.

Motor protection

Overload relays or thermistor motor protection tripping units can be used for overload pro-tection.The overload relay can be ei-ther mounted onto the line con-tactor or separately fitted. It must be set to 0.58 times the rated motor current.

Sizes S00 to S3

All contactor assemblies can be fitted with RC elements, varistors or diode assemblies for damping opening surges in the coil.

As with the individual contac-tors, the surge suppressors can either be plugged onto the top of the contactors (S00) or fitted onto the coil terminals on the top or bottom (S0 to S3).

Sizes S6 to S12

The contactors are fitted with varistors as standard.

Application Design

Surge suppression

1) Exception:The mechanical interlock between the delta and WYE contactors is included in the installation kit for size S00 contactor assemblies.

Siemens Industry, Inc.Industrial Controls Catalog

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Contactors and Contactor AssembliesContactor Assemblies for Switching Motors SIRIUS

SiemIndus



Overview

The contactor assemblies for star-delta starting can be ordered as follows:Sizes S00 to S12

As components for customer assembly.

Calculated horsepowerratingsat 460 V AC

Size Accessories for customer assembly

HP

Operat. current IeA

Motor current

A

Line/delta contactor

WYE contactor Time-delay relay Installation kit A doubleinfeed

7.5 12 1.9 ... 2.8 S00-S00-S00 3RT10 15 3RT10 15 3RT19 16-2G.51 –2.4 ... 3.43.1 ... 4.33.8 ... 5.5

4.8 ... 6.96 ... 8.6

10 17 7.8 ... 10.9 3RT10 179.5 ... 13.8

12.1 ... 17 3RP15 74-1N.30

15 25 3.1 ... 4.3 S0-S0-S0 3RT10 24 3RT10 24 3RP15 74-1N.30 –3.8 ... 5.5

4.8 ... 6.96 ... 8.67.8 ... 10.99.5 ... 13.8

12.1 ... 17.215.5 ... 21.519 ... 25

20 32 24.1 ... 34 3RT10 2629.3 ... 37.9

25 40 34.5 ... 40

30 50 9.5 ... 13.8 S2-S2-S0 3RT10 34 3RT10 26 3RP15 74-1N.30 3RA19 33-2C 3)12.1 ... 17.215.5 ... 21.519 ... 27.624.1 ... 3431 ... 4337.9 ... 55.248.3 ... 65 3RT19 35

50 80 62.1 ... 77.8 S2-S2-S2 3RT10 34 3RA19 33-2B 3)60 86 69 ... 86 3RT10 36

75 115 31 ... 43.1 S3-S3-S2 3RT10 44 3RT10 35 3RP15 74-1N.30 3RA19 43-2C 3)37.9 ... 55.248.3 ... 6962.1 ... 77.677.6 ... 108.6

100 150 98.3 ... 129.3 3RT10 45 3RT10 36120.7 ... 150

125 160 86 ... 160 S6-S6-S3 3RT10 54 3RT10 44 3RP15 74-1N.30150 195 86 ... 195190 230 86 ... 230 3RT10 55 3RT10 45200 280 86 ... 280 3RT10 56 3RT10 46

250 350 95 ... 350 S10-S10-S6 3RT10 64 3RT10 54 3RP15 74-1N.30300 430 95 ... 430 3RT10 65 3RT10 56

400 540 347 ... 540 S12-S12-S10 3RT10 75 3RT10 64 3RP15 74-1N.30450 610 347 ... 610

500 690 347 ... 690 3RT10 65

650 850 347 ... 850 3RT10 76 3RT10 66

For accessories, see page 2/50.For circuit diagrams, see page 2/162.

1) The installation kit contains mechanical inter-lock; 3 connecting clips; wiring connectors on the top (connection between line contactor and delta contactor) and the bottom (connection between delta contactor and star contactor); WYE jumper.

2) The installation kit contains 5 connecting clips; wiring connectors on the top (connection between line contactor and delta contactor) and the bottom (connection between delta contactor and WYE contactor); star jumper.

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Inc.talog


3) Installation kit contains wiring connector on the bottom (connection between delta contactor and WYE contactor) and WYE jumper.

4) Wiring connector on top from reversing contac-tor assembly (note conductor cross-sections).

5) A mechanical interlock adapter, 3RA1954-2C, is required to use the standard 3RA1954-2A mechanical interlock for the AC version of the S6-S6-S3 WYE-Delta starter. The S6-S6-S3 WYE-Delta DC version would require a special custom build spacer, which is not manufac-

tured, to allow the mechanical interlock tooperate.

6) Only use wiring connector on the top from reversing contactor assembly (note conductor cross-sections); order WYE jumper in addition.

Overload relay, thermal Overload relay, solid-state

Installation kit B for single infeed

WYE jumper Baseplates Range of overload relay, thermal [A]

Order No. overload relay, thermal

Range of overload relay, solid-state [A]

Order No. overload relay, solid-state

3RA19 13-2B 1) 3RT19 16-4BA31 – 1.1 ... 1.6 3RU11 16-1AB0 0.4 ... 1.6 3RB10 16-1NB01.4 ... 2 3RU11 16-1BB0 1.5 ... 6 3RB10 16-1PB01.8 ... 2.5 3RU11 16-1CB02.2 ... 3.2 3RU11 16-1DB02.8 ... 4 3RU11 16-1EB0 3 ... 12 3RB10 16-1SB03.5 ... 5 3RU11 16-1FB04.5 ... 6.3 3RU11 16-1GB05.5 ... 8 3RU11 16-1HB07 ... 10 3RU11 16-1JB0

3RA19 23-2B 2) 3RT19 26-4BA31 – 1.8 ... 2.5 3RU11 26-1CB0 1.6 ... 6 3RB10 26-1PB02.2 ... 3.2 3RU11 26-1DB02.8 ... 4 3RU11 26-1EB03.5 ... 5 3RU11 26-1FB04.5 ... 6.3 3RU11 26-1GB0 3 ... 12 3RB10 26-1SB05.5 ... 8 3RU11 26-1HB07 ... 10 3RU11 26-1JB09 ... 12.5 3RU11 26-1KB0 6 ... 25 3RB10 26-1QB0

11 ... 16 3RU11 26-4AB014 ... 20 3RU11 26-4BB017 ... 22 3RU11 26-4CB020 ... 25 3RU11 26-4DB0

3RA19 33-3D 4) 3RT19 26-4BA31 3RA19 32-2E 5.5 ... 8 3RU11 36-1HB0 – –7 ... 10 3RU11 36-1JB0 6 ... 25 3RB10 36-1QB09 ... 12.5 3RU11 36-1KB0

11 ... 16 3RU11 36-4AB014 ... 20 3RU11 36-4BB018 ... 25 3RU11 36-4DB022 ... 32 3RU11 36-4EB0 13 ... 50 3RB10 36-1UB028 ... 40 3RU11 36-4FB0

3RT19 36-4BA31 3RA19 32-2F 36 ... 45 3RU11 36-4GB040 ... 50 3RU11 36-4HB0

3RA19 43-3D 4) 3RT19 36-4BA31 3RA19 42-2E 18 ... 25 3RU11 46-4DB0 13 ... 50 3RB10 46-1UB022 ... 32 3RU11 46-4EB028 ... 40 3RU11 46-4FB036 ... 45 3RU11 46-4HB045 ... 63 3RU11 46-4JB0 25 ... 100 3RB10 46-1EB057 ... 75 3RU11 46-4KB070 ... 90 3RU11 46-4LB0

3RA19 53-3D 5) 3RT19 46-4BA31 3RA19 52-2E – – 50 ... 200 3RB10 56-1FG0

3RA19 63-2A 6) 3RT19 56-4BA31 3RA19 62-2E – – 55 ... 250 3RB10 66-1GG0

3RA19 73-2A 6) 3RT19 66-4BA31 3RA19 72-2E – – 200 ... 540 3RB10 66-1KG0

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Selection and ordering data

Size S00-S00-S00 · up to 17 A, 10 HP

Components to be ordered separately:

The connecting leads are not shown.

Accessory Order No. Page

Auxiliary switch block, mountable on the front 3RH19 11-1.... 2/35

Surgesuppressor 3RT19 16-1.... 2/41, 2/42

3-phase feeder terminal 3RA19 13-3K 2/50

Components Order No. PageK1 1) K3 2) K2 2)

Contactors,

12 A, 7.5 HP 3RT10 15 3RT10 15 3RT1015 2/8

Contactors,

17 A, 10 HP 3RT10 17 3RT10 17 3RT1015 2/8

Solid-state time-delay auxiliary switch block,mountable on the front 3RT19 16-2G.51 2/39

Auxiliary switch block with one unassignedNO contact 3RH19 11-1BA10 2/35

Installation kit 3RA19 13-2B 2/50

The installation kit contains:

Mechanical interlock

3 connecting clips

Wiring connectors on the top and bottom

14

16

17

1 2 3

1 2 3

7

9

4 5 6

4

5

6

For overview, see page 2/73-74.For accessories, see page 2/50.For circuit diagrams, see page 2/162.

1) Use design with 1 NO.2) Use design with 1 NC.


SiemIndus

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Size S0-S0-S0 · up to 40 A, 25 HP




Mechanical interlock,laterally mountable 3RA19 24-2B 2/47

Solid-state time-delay auxiliary switch block, mountable on the front 3RT1926-2G... 2/39

Mechanical interlock, mountable on the front 3RA19 24-1A 2/37

Auxiliary switch block,laterally mountable 3RH19 21-1EA.. 2/37

Surge suppressor 3RT19 26-1.... 2/41

3-phase feeder terminal 3RV19 15-5A 1/10

3-phase busbar 3RT19 26-4CC20 2/50

Push-in lug 2) for time-delay relay for screw mounting 3RP19 03 Section 9

Components Order No. PageK1 K3 K2

Contactors,

25 A, 15 HP 3RT10 24 3RT10 24 3RT1024 2/8

Contactors,30/40 A, 20/25 HP 3RT10 26 3RT10 26 3RT1024 2/8

Time-delay relay,laterally mountable 3RP15 74-1N.30 Sec. 9

Auxiliary switch block with one unassignedNO contact 3RH19 21-1CA10 2/36

Auxiliary switch block for local control2 units 3RH19 21-1CA013 units 3RH19 21-1CA10 2/36

Installation kit 3RA19 23-2B 2/50

The installation kit contains:

Connecting clips

Wiring connectors on the top and bottom for connecting the main conducting paths

4

7

12

15

16

17

18

19

1 2 3

1 2 3

8

9

10

5 6

5

6


1) Not included in scope of supply of complete contactor assemblies; available as accessory.

2) Possible in principle.If a solid-state time-delay auxiliary switch block is mounted onto the front of K3, an ordinary auxiliary switch block can only be mounted onto the side.

Inc.talog


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Mechanical interlock, laterally mountable,depth must be adapted K3: 1.5 mm; K2: 0 mm 3RA19 24-2B 2/47

Solid-state time-delay auxiliary switch block, mountable on the front 3RT19 26-2G... 2/39

Auxiliary switch block,laterally mountable 3RH19 21-1EA.. 2/37

Surge suppressor 3RT19 26-1.... 2/413RT19 36-1.... 2/42

3-phase feeder terminal 3RV19 35-5A 1/10

3-phase busbar 3RV19 35-1A 1/10

Push-in lug 2) for time-delay relay for screw mounting 3RP19 03 Section 9


Contactors,50/60 A, 30 HP 3RT10 34 3RT10 34 3RT1026 2/8

Time-delay relay,laterally mountable 3RP15 74-1N.30 Sec. 9

Auxiliary switch block with one unassignedNO contact 3RH19 21-1CA10 2/36

Auxiliary switch block for local control2 units 3RH19 21-1CA013 units 3RH19 21-1CA10 2/36

Baseplate 3RA19 32-2E 2/50

Installation kit 3RA19 33-2C 2/50

The installation kit contains the WYE jumper on the top and the wiring jumper on the bottom for connecting the main conducting paths.

4

7

15

16

17

18

19

1 2 3

8

10

11

6

9



2) Possible in principle.If a solid-state time-delay auxiliary switch block is mounted onto the front of K3, an ordinary auxiliary switch block can only be mounted onto the side.


SiemIndus

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Mechanical interlock, lateral3RA19 24-2B 2/47Solid-state time-delay auxiliary switch block, mountable on the front 3RT19 26-2G... 2/39Mechanical interlock,mountable on the front 3RA19 24-1A 2/39Auxiliary switch block,

91HR3laretal 21-1EA.. 2/37Surge suppressor 3RT19 26-1.... 2/41

3RT19 36-1.... 2/423-phase feeder terminal 3RV19 35-5A 1/103-phase busbar 3RV19 35-1A 1/10Push-in lug 2) for time-delay relayfor screw mounting 3RP19 03 Section 9


Contactors,

80 A, 50 HP 3RT10 35 3RT10 35 3RT1034 2/8Contactors,

86 A, 60 HP 3RT10 36 3RT10 36 3RT1034 2/8Time-delay relay,lateral 3RP1574-1N.30 Sec. 9Auxiliary switch block with one unassignedNO contact 3RH19 21-1CA10 2/36Auxiliary switch block for local control2 units 3RH19 21-1CA013 units 3RH19 21-1CA10 2/36Baseplate 3RA19 32-2F 2/50Installation kit 3RA19 33-2B 2/50The installation kit contains the WYE jumper on top and the wiring jumper on bottom for connecting the main con-ducting paths.

47

12

15

16

171819

1 2 3

1 2 3

8

9

10

11

6



2) Possible in principle. If a solid-state time-delay auxiliary switch block is mounted onto the front of K3, a standard auxiliary switch block can only be mounted onto the side.

Inc.talog


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Mechanical interlock, lateral, depth must be adapted K3: 0 mm; K2: 27.5 mm 3RA19 24-2B 2/47Solid-state time-delay auxilary switch block, mountable on the front 3RT19 26-2G... 2/39Auxiliary switch block, lateral3RH19 21-1EA.. 2/37Surge suppressor 3RT19 . 6-1.... 2/42Push-in lug 2) for time-delay relayfor screw mounting 3RP19 03 Section 9


Contactors,

115 A, 75 HP 3RT10 44 3RT10 44 3RT1035 2/8Contactors,

150 A, 100 HP 3RT10 45 3RT10 45 3RT1036 2/8Time-delay relay, lateral 3RP15 74-1N.30 Sec. 9Auxiliary switch block with one unassignedNO contact 3RH19 21-1CA10 2/36Auxiliary switch block for local control2 units 3RH19 21-1CA013 units 3RH19 21-1CA10 2/36Baseplate 3RA19 42-2E 2/50Installation kit 3RA19 43-2C 2/50

The installation kit contains the WYE jumper on the top and the wir-ing jumper on the bottom for connecting the main conducting

4

7

151619

1 2 3

1 2 3

8

9

10

116


1) Not included in scope of supply of the completecontactor assemblies; available as an accessory.

2) Possible in principle.If a solid-state time-delay aux-iliary switch block is mounted onto the front of K3, a standard auxiliary switch block can only be mounted onto the side.


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Contactors and Contactor Assemblies SIRIUS Contactor ...cmsapps.sea.siemens.com/controls/icc2010/10IndControl_ pdfs/10IC_… · Contactors and Contactor Assemblies ... star-delta