Siemens AC-3 Datasheet Page 1

1SICOPDatasheet 2010sLow Voltage Control ComponentsAnswers for industry.

10Technical data1) As per IS/IEC 60947-12) Ratings at 1000V AC - upon enquiry.ontime x 1003) On-load factor (ED) in % =cycle timeMax. switching freq.

114) Ratings for capacitor - banks in parallel - upon enquiry. Minimum inductance of 6μHrequired between parallel connected capacitors. 3

12Power Contactors Technical Data5) With AC coil. With DC coil: 1000 oprs/hr.6) Including switching contactor.7) Rated value of the control voltage.Co

138) The opening time delay increases when the contactor coil is protected against voltagepeaks. (e.g. Varistor: +2 to +5ms) 4 6 8 10

143TF30 to 3TF49 contactors3TF50 to 3TF57 contactorsElectrical Life Curves

15Forward / Reverse starter (Electrical Interlocking)S0 = ‘OFF’ Push buttonS1 = ‘ON’ Push buttonK1 = Line contactorK2 = Star contactorK3 = Delta conta

16a) Main Circuitb) Auxiliary circuit for momentary-contact controlK1 : Sizes 3 to 6,3TF46 to 3TF51K1 : Sizes 8 to 123TF52 to 3TF56K2 : 3TF30 10 OB..

17Size 0, 3TF30/31AC and DC CoilAdd-on contact block for 3TF30/31/32/33Size 3 to 12, 3TF46 to 3TF57AC CoilSize 3 to 12, 3TF46 to 3TF56DC CoilSize 12,

18Accessories and ordering data1. Mechanical interlocking kitMechanical interlock is required when the supply from twodifferent sources is available.

19Spares and ordering dataAdd – on Contact Blocks:For Add on contact blocks Type Std. pkg.Contactor (nos.)3TF30-35 1NO 3TX40 10-2A1NC 3TX40 01-2A101NO

2IndexContents Page No.3TH30 – Contactor Relays 33TF – Power Contactors 73TF – Contactors for Hoisting Duty 253TK5 – AC1 Duty Contactors 293UA and 3UC

20Dimensional drawing3TF30/31 AC Coil 3TF30/31 DC Coil3TF32/33 AC Coil 3TF32/33 DC Coil3TF34/35 AC Coil 3TF34/35 DC Coil Auxiliary contact block Ide

213TF48 and 3TF49Notes1) Minimum clearance from insulated components = 3mmMinimum clearance from earthed components = 10mm2) Dimension with second aux

22Notes1) Minimum clearance from insulated components = 3mmMinimum clearance from earthed components = 10mm2) Dimension with second auxiliary contact

23Useful informationCategories of duty - as per IEC 947 / IS 13947Current Utilisation Typical ApplicationCategoriesAC AC1 Non-inductive or slightly in

24Recommended substitutes for discontinued 3TA/3UA19For standard application (AC3 duty)AC3 ratingSizeDiscontinued DiscontinuedSize Contactor Bi-relayM

25Contactors for Hoisting DutyAC slipring motors are most commonly used for the hoisting applications. AC2 duty pertains to startingand switching off

26Technical InformationA. Recommended selection of contactors for hoisting dutyIn hoisting operation, slipring motors are generally used. For this typ

27Fig. 2 Contact endurance for mixed operation as a function of motor ratedcurrent. Motor on rated load, inching at 2.5 times motor rated current(slip

28Draw a line from the point on the left-hand scale indicating therequired number of operating cycles to the point on the righthand scale indicating t

29AC1 Duty Contactors 3TK5When contactors are not required to make or break current but only carry the current, the contactorscan be used to its full

3Contactor Relays 3TH30Reliability and safety are pre-requisites in the choice of the control contactor. Siemens 3TH30 contactorrelays satisfy these c

30Technical dataContactor Type 3TK50 3TK52 3TK54 3TK56Mechanical Endurance (make/break operations) Oprns 10 millionElectrical Endurance in acc. with A

31Accessories and ordering data:Auxiliary contact blocks:For Contactor Description TypeStd. pkg.(nos.)3TK5 Second 1NO+1NC Left 3TY7 561-1K1Second 1NO+

32

33Bimetal Overload Relays 3UA and 3UCThe 3UA / 3UC thermal overload relays are suitable for customers from all industries, who wantguaranteed optimum

34Recovery timeAfter tripping due to overload, the thermal overload relays requiresome time until the bimetal strips have cooled down. The devicecan o

35Selection and ordering data:Setting range Type reference Backup Mounting Std.HRC fuse pkg. 3NA (nos.)(A) A (max)3UA58 3070 - 95 3UA58 30-5B 16

36Technical DataType 3UA50 3UA52 3UA55 3UA58 3UA5830 3UA6230 3UA6830 3UC5030 3UC5830 3UC6230 3UC6630Trip class 10A 30Phase failure 99999999999protecti

37Characteristic CurvesFor normal operation, all 3 bimetallic strips of the overload relaymust be heated. The overload relays 3UA / C are suitable for

38Accessories and ordering data1. Adaptor: To convert contactor mounting relay to independentmounting, (Fig. 1) suitable for screw type mounting and 3

39Dimensional Drawing3UA50 with independent Mounting Adapter Type 3UX1 418** Dimension for the square OFF-button (stroke 3mm)Dimension for the round R

4Selection and ordering dataContacts in basic unit MLFB - With AC coil MLFB - With DC coil Std. pkg. (nos.)4NO 3TH30 40-0A.. 3TH30 40-0B..3NO+1NC 3TH3

403UA52/55 with independent mounting** Dimension – For square OFF button (Stroke 3mm)– For Round RESET button (Stroke 2.5mm) less 2.5 mm1) Suitable fo

413UA55 mounted on 3TF 34/35* Minimum clearance from the earthed components** Dimension – For square OFF button (Stroke 3mm)– For round RESET button (

423UA5800_.. Z2 mounted on 3TF47 7* Dimension – For square OFF button (Stroke 3mm)– For round RESET button (Stroke = 2.5mm) less 2.5mm1) Minimum clear

433UA6230 CT Operated Birelay** Dimension – For square OFF button (Stroke 3mm)– For round RESET button (Stroke 2.5mm) less 2.5mm** Dimension – For TES

443UC50 CT Operated Birelay** Dimension – For Square OFF button (Stroke 3mm)– For Round RESET button (Stroke 2.5mm) less 2.5mm2) Suitable for DIN RAIL

45Motor Protection Circuit Breakers3VU13 and 3VU163VU13/3VU16 is suitable for use in fuseless motor feeders upto 11KW/22KW (25A/63A) respectively. 3VU

463VU13 Circuit - breakers with 1NO+1NC auxiliary contacts forline-side protection of transformers with high inrush currentRated Overload Shortcircuit

47Technical DataAccording to DIN VDE 0660; IS/IEC 60947-1; IS/IEC 60947-2; IS/IEC 60947-4-1Type 3VU13 3VU16Number of poles 33Max. rated current In• mo

48Technical data for accessories: 3VU13 3VU16Undervoltage ReleaseConsumption During Pick-up VA/W 10/6Consumption During Running VA/W 4.7/2Dropout V

49Characteristic CurvesTimes set currentTime current characteristics of 3VU13Times set currentTime current characteristics of 3VU16Short circuit curre

5Accessories and ordering data1. Surge suppressorIt is used to reduce the effect of switching overvoltages createdduring the opening of inductive circ

50Accessories:RHS Alarm contact When short circuit (and not overload) occurs, alarm contact 1NO+1NC changes over which can be used to give(1NO + 1NC)

51Current-LimiterThe breaking capacity of 3VU13 is 100kA upto 6A. However for3VU circuit breakers with rated current of 8A and 10A the short-circuit b

52Accessories and ordering data3VU9131-3AA0Add on Auxiliary block1NO + NC3VU9131-7AA00S/C Trip indicating contacts1NO + 1NC3VU9132-0AB15220/230V 50HzU

53Dimensional Drawings3VU13 circuit-breakers and accessories3VU13 circuit-breakerscan be combined witha) undervoltage or shunt release and/orb) short-

54Door operating mechanism with extension shaft (300mm) with door interlock & padlocking facilities.Mounting bracket of 3VU 13/163VU9133-1PA01 for

55StartersOverviewSiemens caters with following types of starters to agricultural and industrial sector.

56ApplicationThe main purpose of motor starters is to start the electrical motorby switching ON the contactor inside the starter. The relay insidethe

57A4. Starter with hand reset facility, in sheet steel housing,incl. birelay with single phasing protection Motor ratingStd. at 415V, 3ph,

58C. Industrial starter (starters w/o relay)The 3TF contactor is available and 3UA relays are recommended.Spares for startersSpares for 3TW42 / 3LW42C

59Spares for 3TE02CONTACTOR 3TW0 311-0A*51CONTACTOR 3TW0 320-0A*51RELAY 3UW5002..$Main contact kit 3pole 3TX0 300-0YA0Main contact kit 1pole 3TX0 300-

6

60DOL - open execution SLD – 3phase motor DOL – open execution SLD – 1phase motorDOL – Remote reset - SLD Handle Star delta StarterRAJA Direct-On-Line

61Star delta StarterDimensional drawingsA4: DOL with lockable off (here a small lock comes on the offpush button which is not shown here below)A1: DOL

62A2: DOL starter in open execution (contactor and relay are mounted on a plate)B1: Handle operated Star delta starter* Mounting dimensions 219 x 219U

63B2: Semi automatic star delta starter andB3: Fully automatic star delta starterB4. Fully automatic star delta starter in open execution

64C1: DOL without relay3TW04 95-2A..C2.3TE04 94-2A..3TE04 95-2A..3TE04 96-2A..3TE04 97-2A..3TW04 96-2A..3TW04 97-2A..3TW04 98-2A..3TW05 90-2A..3TW05 9

65Useful technical informationMethod of startingA. DOL starting method:The most economical and popular method of starting squirrelcage induction motor

66A4. DOL starter with lockable off:This starter is exactly same as RAJA DOL starter with sheet steelhousing but the relay needs to be reset manually

67Construction:It consists of three contactors (3TW03), bimetal overload relay(3UW50), electronic timer (3RP) for automatic changeover from‘star’ to ‘

68Fuse protected selection type 2, lq = 50kA, IS/IEC: 60947-4-1• The selection is valid only for complete Siemens combinations i.e. SDF + DIN Fuse + C

69Direct-on-line feeder, for low LCCSL motor Circuit breaker Contactor Bi-relaykW/HP IL Range415V, 3ph, 50Hz AType A Type A Type (50°C)(A)0.37/0.5 1 3

7Power Contactors 3TFFor more than 110 years, Siemens has been developing and manufacturing industrial control products.We offer a wide product range

70Recommended Selection of Switchgear for Autotransformer Starter - Fuse Protected SL Motor, 415V,SDF FUSELine contactor Transformer contactor K2 for

71Notes

Siemens Ltd.Industry SectorIndustry Automation - Control ComponentsR&D Technology CentreThane Belapur Road, Airoli Node, Navi Mumbai - 400 708Fax:

8High performance• No duration upto 55°CContactors are suitable for operation in service temperatureupto 55°C without derating. This avoids selection

9Selection and ordering dataContactor Rated current (A) Motor kW Auxiliary AC 50 Hz coil DC coil Std.size Ie AC3 at at 415V 50Hz, 3ph contacts Type Ty