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Reliably Switching Highest Currents up to 2000 A

Product Information DIL M contactorsDIL H contactors

DIL contactors

PKZ motor-protec-tive circuit-breakers

Z, ZB motor-protec-tive relays

MSC motor-starters

DS4 softstarters

Drives

The complete range for the motor circuit.From contactors to efficient motor-starters to controlled drives. New solutions that rely on communication.

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DIL M contactors from 580 A are vacuum contactors that offer considerable advan-tages over air-break contactors: • The switching chamber remains absolutely maintenance free for the entire device

lifespan • The electrical lifespan is significantly longer than with air-break contactors • It is possible to achieve a higher packing density and cleaner distribution chamber

since no open arcing occurs

Highly efficient switching The benefits of vacuum technology arise from the closedsystem of vacuum switching tubes that excludes any externalinfluences on the switching sequences within and at the sametime avoids the gases that normally arise from switching.The most important feature of vacuum switching tubes istheir long lifespan whilst switching highest currents.

This arises as a result of lower contact burn since no arcingtakes place in the vacuum.Vacuum technology allows smallerswitchgear dimensions than with conventional contactorsswitching in air. Yet higher currents can be controlled byparallel connection of the switching tubes, where resistiveloads (AC-1) are to be switched.

Advantages fromVacuum Technology

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Ceramicinsulatingtube

Tubecover

Moving contact

Moving conductor

Metal expansionbellows

Fixed contact with fixed conductor

Arc protec-tion shield

A glance into the vacuum

The cross-section of the vacuum switching tube shows the fixed and movingcontacts. The expansion bellows made from thin metal sheet expands and contractswith the contact movement while ensuring that the system remains sealed. All the copper-coloured parts in the picture carry current. The ceramic insulatingtube separates the incoming from the outgoing side of the switching tube. This technology has been tried and proven since the 1980ies.

Sophisticated production expertise

The production of high-vacuum swit-ching tubes is technically demanding. Moeller has developed these switchingtubes in-house and is producing themat its switchgear factory at Unna wherethe following critical production stepsare mastered • Manufacture of the exquisitely fine

bellows with their extremely long lifeexpectation

• Measures to distribute the currentuniformly over the whole contactsurfaces, which determine the lifespan

• Multiple gas-tight connections between metal and ceramic materials.

The pictures show the vacuum switching tubes being prepared for the soldering process.

Compact dimensions The three switching tubes together

with their electromechanical drivesystem are extremely compactly

arranged. This in turn allows vacuumcontactors to excel by their

small dimensions.

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Staying Cool withClever Electronics

All the DIL M contactors from 185 A up to 2000 A have electronically controlleddrives that result in outstanding benefits for the application: • Significantly less heat rise in the switchgear cabinet due to the sealing

consumption being reduced to just 4%• Design engineers need to allow only for small control transformers due to

reduced pick-up consumption • Considerably wider voltage tolerance than the Standard demands represents

greater reliability in the event of voltage fluctuation • Long contact lifespan by optimisation of contact forces• Built-in suppressor circuit for motor protection• Auxiliary contacts: 2 NO, 2 NC

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Standard Premier

Classical:A1/A2 are conventionally connected to the voltage. + +

Direct actuation from the PLC:A 24 V PLC output can be connected to A3/A4 without a coupling relay. – +

Actuation by low-consumption signal generators:Low capacity signal generators such as printed circuit board relays, controlcircuit devices or position switches can be connected directly to A10/A11.

– +

Single voltage coils available for all the customary voltages worldwide. + –Just 4 coils cover any applicationIn the user-friendly version of the DIL M contactors, all application rangesand worldwide customary supply voltages are covered by just four coils.This means simplicity in engineering and a stockholding of just one coil inmost cases. The coil voltage ranges are so wide that they provide safetyeven in unreliable supply networks.

– +

Cool contactors reduce the switchgear cabinet costsDIL M contactors reduce the sealing consumption by 96 %,and thereby considerably lower the heat rise within the switching cabinet. This of course lowers the cost of the panel as well as the running costs. The switching cabinet can be smaller and, in many cases,there is no need for the expensive fan. Example: DIL M185 (RA250)

DC operatedPower consumption: 3.3 Watt

Switching reliably with low pick-up consumption The pick-up consumption has been reduced by 79% withDIL M contactors. For the application, this means that con-siderably smaller control transformers are required. Contactbounce is clearly reduced and this enhances the contact lifespan. Voltage tolerance is 0.7 to 1.15 UC.Example: DIL M185 (RA250)

DC operatedPower consumption: 170 Watt

It is your choice: whether you want the standard or themore user-friendly premier version. All the contactors from185 up to 500 A are available in both versions. All the con-tactors above 500 A are offered in the premier version only.

100% 21%

100% 4%

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Leaps in technology demand newresponses: motor protection has be-come significantly simpler and moreeconomical due to newly developedsensor systems and tripping devices. All the Z motor-protective relaysprovide the standard function of pro-tection upon phase failure, overloador current imbalance. But in additionto these functions, the innovative ZEVmotor-protection system from Moellernow offers considerably more: • More compact switchgear cabinet

construction due to 58 times less volume of the current transformers compared to conventional ones.

• Small and light current sensors with extremely wide current ranges simp-lify selection. A small range of device versions reduces stockholding costs.

• Extremely easy fitting – just place the small uniform-field sensors around the cable.

No more need for the awkward fit-ting and connecting of large current transformers with thick cables nor the drilling of mounting plates. Instead, the sensor is simply fastened with velcro.

• Push-button operation and LCD make setting and monitoring easier.

Even the most complex starting condi-tions can be mastered using the ZEVmotor-protection system. Even motorswith long run-up times are reliably pro-tected due to the expansion of the trip-ping classes up to Class 40. Optimumprotection for any motor starting con-dition can be set by merely pre-selec-ting one of the eight tripping classesbetween 5 and 40. An earth fault isquickly detected by means of externalcore-balance transformers. The inte-grated thermistor connection allowsthe relay to be expanded into a fullmotor-protection system.

ZEV Makes Contactorsinto Motor-Starters

ZEV Tripping chracteristics

x Set current le

Seco

nd

s

M

inu

tes

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M185 M225 M250 M300 M400

kW kW kW kW kW

55 70 75 90 12590 110 132 160 200

115 142 157 190 255132 160 180 215 290175 215 240 286 344108 108 108 132 132

41 51 62 75 9275 90 110 132 16085 102 125 140 18696 116 143 172 214

127 155 189 229 283108 108 108 132 132

121 139 155 177 221210 241 268 306 382 243 279 310 354 443277 317 352 403 503365 419 465 532 664554 635 705 806 1007

A A A A A337 386 429 490 612337 386 429 490 612

ZEV XWS 820

NZM2 NZM3

DIL

Rated operational voltage

AC-3Max. three-phase motor rating, 50-60 Hz

220 V – 230 V380 V – 400 V440 V500 V660 V – 690 V1000 V

AC-4Max. three-phase motor rating, 50-60 Hz

220 V – 230 V380 V – 400 V440 V500 V660 V – 690 V1000 V

AC-1Motor rating at resistive load, 40 °C

220 V – 230 V380 V – 400 V440 V500 V660 V – 690 V1000 V

Conventional thermalcurrent Ith=Ie open at 40 °C

to 690 V1000 V

ZEV motor-protective relays

NZM/IZM circuit-breakers

Selection Table: DIL Contactors

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M500 M580 M650 M750 M820 M1000 H1400 H2000

kW kW kW kW kW kW kW kW

155 185 205 240 260 315 – –250 315 355 400 450 560 – –345 370 420 480 525 650 – –360 420 470 550 600 730 – –344 560 630 720 750 1000 – –132 600 600 800 800 1000 – –

112 143 161 181 209 260 – –200 250 280 315 355 450 – –229 290 326 367 418 520 – –260 330 370 417 474 590 – –344 440 494 556 633 780 – –132 509 509 678 678 1000 – –

310 354 376 398 443 443 620 886535 612 650 689 766 776 1071 1531620 709 753 797 886 886 1240 1773705 806 856 906 1007 1007 1410 2015930 1064 1130 1196 1330 1330 1861 2660

1410 1612 1712 1813 2015 2015 2417 3223

A A A A A A A A857 980 1041 1102 1225 1225 1714 2450857 980 1041 1102 1225 1225 1469 1959

NZM4 IZM2

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NZM protects motorsNZM circuit-breakers protect motors and incomers in the event of overload andshort circuit. The short-circuit releases of the NZM can be set to 12 to 14 times therated current in order to prevent the protective element from switching Off duringstarting current peaks.NZM circuit-breakers protect motors reliably and with phase-failure sensitivity from32 A up to1400 A.The comprehensive range of circuit-breakers and corresponding accessories enablesthe equipment to be precisely matched to any number of protective applications(there is a choice even of tripping characteristics), including the selective protectionof systems.

• For use with large motors, for whichthe contactors are mainly selected toutilisation category AC-3

o Bow thrusters on ships

o Crushers for material recycling andwood pulping

o Water treatment facilities

o Cement works

o Mining machinery

• For use where the contactors elec-trically isolate current circuits, forwhich the contactors are selectedto utilisation category AC-1

o In conjunction with power electronicsproducts for speed adjustment onvery large drives

o Induction welding and heating, e.g.in the steel and aluminium industries

o For powerful heaters in plasticsprocessing

o Mains interface facilitiesfor wind energy

Fuseless Motor-Starters

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Think future. Switch to green.

Moeller addresses worldwidewww.moeller.net/addressE-Mail: info@moeller.net

© 2004 by Moeller GmbHSubject to alterationsW2100-7550GB MDS/??? 03/04Printed in the Federal Republic of Germany 03/04Article No.: 284610

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