LOW VOLTAGE AIR CIRCUIT BREAKERS MAGNUM - Eatonpub/@electrical/documents/content/... ·...

Pittsburgh, Pennsylvania U.S.A.

Publication No. B.22F.01.S.USeptember 1998Printed in U.S.A. / CMS 2301

Cutler-Hammer, a part of Eaton Corporation, is a worldwide leader providingcustomer-driven solutions. From power distribution and electrical control productsto industrial automation, Cutler-Hammer utilizes advanced product development,world-class manufacturing, and offers global engineering services and support.

For more information on Cutler-Hammer products and services,call 1-800-525-2000 or 1-616-982-1059, or visit our website atwww.cutlerhammer.eaton.com

MAGNUMLOW VOLTAGE AIR CIRCUIT BREAKERS

Achieving the Industry’s HighestInterruption and Withstand Ratings

In a New Compact Design

B22

F01S

U

Magnum

If Your System’s Not Up…It’s Down

In today’s electrical distribution systems,the demand for higher standards of pro-tection and coordination are driven bydemands for a more reliable, more accu-rate distribution system. A distributionsystem that eliminates unnecessary trips,isolates a fault to ensure minimum down-time, and provides system informationto assist the user to better manage thesystem.

Cutler-Hammer has developed a com-plete family of microprocessor-based de-vices to meet the demands of users anddesigners of electrical distribution sys-tems. Our Digitrip OPTIM Programmableand Digitrip RMS Electronic Trip Unitsoffer circuit protection, information, inte-gral testing, remote communications,and energy monitoring functions for lowvoltage breakers…while a Digitrip 1150iProgrammable Trip Unit has been engi-neered exclusively for Magnum Breakers.

Power for Productivity

Energy costs are rising an average eightto 10 percent per year…maintenance andengineering staffs are trying to do morewith less…and electrical power quality isdecreasing. These situations are provid-ing increased pressure on electrical staffpersonnel to improve quality.

A solution is power distribution monitor-ing because it provides information fromthe utility substation all the way down to asmall kW motor…quickly and reliably, em-powering maintenance and engineeringto take control of the distribution system.Data on energy consumption, mainte-nance requirements, and troubleshootingare at their fingertips, providing savings inboth time and money. The Cutler-HammerIMPACC System uniquely interrogatesthe electrical system for necessary first-hand information and displays it witheasy-to-understand software.

Magnum 15

Reliabilityand Uptime

Information andSystems Integration

More Information

Visit our Website

Magnum is accessible on-line throughthe Cutler-Hammer Internet site. Visitthe Cutler-Hammer homepage atwww.cutlerhammer.eaton.comand click on Magnum.

Magnum Literature

Additional product literature is avail-able from your local Cutler-Hammersales office.

Magnum Breaker Product Aid(PA.22F.02.S.U) – Bulletised two-page format, including uniquebreaker features, ratings, anddimensional data.

Magnum Product Guide(PG.22F.01.T.U) – Detailed mate-rial on Magnum functions, tech-nology, ratings, dimensions, andordering information.

Cutler-Hammer Sales Offices

For a detailed presentation on theadditional benefits and cost savingsthat Magnum can create for you,call your nearest Cutler-Hammersales office or distributor.

Copyright Cutler-Hammer Corporation, 1998.All Rights Reserved

A result is information that is used toassess the on-line performance of aninstalled power system, followed byintelligent action to keep the systemon-line and productive.

Magnum

Technology

Advancements

and Innovative

Features

Our Customers

Asked For

in an

Air Circuit

Breaker

Cutler-Hammer…A Global Provider of

Electrical Power Distribution Solutions

A Key to Distribution System Reliability

Nonlinear loads, momentary voltagetransients, and surges can cause signifi-cant power quality problems in both in-dustrial and commercial facilities. Manyindustrial processes and solid-state de-vices are extremely sensitive to powerquality problems…and manufacturingoperations can be disrupted by voltageor frequency variances. Poor powerquality can result in expensive downtimeand costly equipment failures. Computerdata centres are very sensitive and minorpower disturbances can result in down-time and significant operational problems.

The negative effect of harmonics can re-sult in overheated neutrals in panelboards,switchboards, overheated transformers,and nuisance tripping of breakers andadjustable frequency drives.

Energy: If You Can’t Measure It,You Can’t Manage It

Energy consumption is a major opera-tions cost for any building and a signifi-cant part of every tenant’s rent. Electricutilities, reacting to increased demands,have developed programmes that providecost reductions for energy conservation...but penalise for usage during peak de-mand hours. Additionally, re-regulationof the utility industry is creating newopportunities to save energy and signifi-cantly reduce energy expenses.

Tenants have the option to decreaseconsumption if they can monitor energyusage. By reducing their consumption,peak demand charges (often a substan-tial portion of a building’s electric bill)will be lowered, thus making the buildingmore attractive to prospective tenants.

Decreases in energy consumption arealso important in manufacturing facilitydepartments or “lines”. Many manufac-turing companies are now placing theresponsibility for energy budgeting at theline foreman level…and this includes cal-culating energy costs just the same as forlabor, materials, and other direct expenses.

14 Magnum Magnum 3

For Greater Reliability, Increased Productivity,and Significant Cost Savings...Cutler-Hammer has the Solutions

Cutler-Hammer Power for Productivity

In today’s sophisticated

distribution systems, providing

power requires more than just

meeting minimum standards.

It necessitates implementation

of solutions that range from

efficient distribution to

coordination to power quality

to energy management to

communications! The end result

is the production of cost-effective,

high quality products.

Power Quality Energy Management

Magnum:

The New

Low Voltage

Air Circuit

Breaker from

Cutler-Hammer

For nearly 70 years Cutler-Hammer has designed, engineered, and manu-factured low voltage circuit breakers and trip units. Our unique productdevelopments have continually set the standard for quality, reliability, andextended operating life.

We’re an industry leader in air circuit breaker innovations such as the firstsolid-state trip unit, the first microprocessor-based trip unit, zone selectiveinterlocking, and the DE-ION® arc extinguisher that provides superior arcquenching. We also innovated the Series C® Moulded Case Circuit Breakerfamily that meets all major electrical world standards.

As a result of our extensive experience and worldwide installed base, we’velearned that air circuit breaker requirements constantly change. System de-signers continually demand increased performance, necessitating innova-tive solutions that provide higher ratings in less space, enhanced safety, andallow for easier maintenance…plus the increasingly important capabilitiesof communications and power quality monitoring and measurement.

Anticipating future electrical distribution system design requirements and in-dustry trends worldwide, Cutler-Hammer engineers and scientists combined their extensiveair and moulded case circuit breaker expertise with input from industry-leading customers.The result is the next generation of air circuit breakers…the revolutionary Magnum.

Highest Ratings, Greater Strength, and Expanded Capabilities…in Less Space

We designed the Magnum Air Circuit Breaker with a rigid frame housing, making it struc-turally stronger while providing greater interrupting and withstand ratings in less spacethan any other air circuit breaker. The innovative arc running system enables Magnum tocontrol the arc direction while also providing for higher interrupting capacity in a smallerspace. This system provides for longer contact life and increased interrupting ratings.

Increased ratings in less space provide opportunities to design more rugged electricaldistribution systems that can handle larger available fault currents, and provide for bettercoordination with downstream devices.

We also included capabilities for our customers to use Cutler-Hammer industry-leadingcommunications and power quality measurement technologies.

■ Highest Interruption and Withstand Ratings. Magnum provides the industry’s highestinterrupting ratings available in a physically smaller size.

■ Through-the-Door Design. All controls, indicators, and the trip unit are visible and canbe safely accessed without opening the compartment door.

■ Common Height and Depth. Each Magnum breaker frame size has the identical heightand depth, a feature unique in the industry.

■ A New Family of Trip Units. A full range of Digitrip® Electronic and Programmable TripUnits has been developed to provide customers a choice of expanded protection, infor-mation, power quality measurement, and communication capabilities to meet specificrequirements.

Magnum Application FlexibilityMagnum Breakers are designed for use in low voltage assemblies including switchgear,switchboards, motor control centres, and transfer switch equipment.

Cutler-Hammer Engineering Services and Systems

Enhancing Existing Equipment Reliability

Increased system loads and normalequipment wear can alter performancecharacteristics and introduce unexpectedline variables. Cutler-Hammer Engineer-ing Services and Systems provides asolution with skilled engineers and tech-nicians that conduct power quality sitesurveys, and monitoring and evaluationstudies in addition to providing mainte-nance and retrofit services for existingequipment.

™

MagnumThe Air Circuit Breaker

Introducing Another Air Circuit Breaker First!

The Highest Interrupting and Withstand Ratings…in the Smallest Physical Unit Size

Our Cutler-Hammer design team innovations, coupledwith customer focus group input, provided the re-defi-nition of what is needed in an air circuit breaker:

■ The capability to design more flexible systemsthat can withstand larger available fault currents.

■ Better coordination with downstream devices.■ Integral arc hood means zero clearance for draw-

out cassette.■ Reduced size of the switchgear assembly.■ Integrally designed breaker levering mechanism

and cassette for drawout breakers provides clear in-dication of connect, test, and disconnect positions.

Cutler-Hammer Met the Challenge

Magnum is designed and engineered specifically foruse in low voltage assemblies applied at nominal volt-ages of 380/415, 440 and 500/690V ac. Nine continuousratings – 800 amperes through 6300 amperes – arecovered by only two breaker sizes. Drawout and fixedmounting available in 3 or 4 pole designs.

Controls and indicators are functionally grouped onthe front escutcheon of the breakers where they canbe easily viewed and accessed through a cutout door.

■1 Integral Arc Hood

■2 Front Mounted Secondary Contacts

■3 Trip Flag

■4 Three Accessory Windows

■5 Spring Status Indicator (Charged or Discharged)

■6 Contact Status Indicator (Open or Closed)

■7 Digitrip RMS Trip Unit

■8 “Push On” to Close Breaker Button

■9 “Push Off” to Open Breaker Button

■10 Manual Charging Handle

■11 Drawout Cassette

■12 Optional Operations Counter

■13 Optional “Off” Key Lock

■14 Integral Padlockable Levering Device

■15 Colour-Coded Breaker Position Indicators

IMPACC Communications

Magnum

Highly Reliable, Comprehensive Communicationsthat will Improve Your Operating Efficiency

Your main objective is to produce a cost-effective,high quality product or service. Several things standin your way – unexpected equipment downtime,energy costs, reduced maintenance personnel,tighter budgets, and limited capital or cash flow.Downtime or power outage costs can cause signifi-cant lost production time and related expenses.

How Can You Excel in this Environment?

By obtaining information and making it availablein real time to the people who need to have it…provided cost-effectively in a simple format thateach person can understand and use. You canobtain this information from your electrical distri-bution system with a Cutler-Hammer IMPACCCommunications System.

With Magnum, for example, a master control unitis used to communicate with the breaker’s DigitripRMS 1150i Trip Unit, and other IQ devices such asan IQ Analyzer and IQ DP-4000. The master controlunit may be a personal computer, an existing build-ing management system, a programmable logiccontroller, or a distributed control system.

E-TRENDE-BILL

IMPACC Software

IMPACC features a suite of client-server softwareproducts. Cutler-Hammer designed IMPACC specifi-cally as a complete electrical distribution systemmonitoring programme that includes graphicalone-line and elevation displays, waveform analysis,trip curve coordination, historical trending, eventand alarm management.

IMPACC was designed to communicate using anexisting or dedicated plant TCP/IP Ethernet network.Client software will operate on Microsoft® Windows®

NT and 95 operating systems. Server software op-erates on Windows® NT exclusively for maximumsystem reliability.

TRIP CURVE COORDINATIONWAVEFORM ANALYSIS

ELEVATION DISPLAYONE LINE DIAGRAM

E-Bill Software

E-Bill is an exclusive metering and analysis packagedesigned to gather data for improved allocation andmanagement of energy costs. As an enhancementto E-Bill, Cutler-Hammer offers E-Track, which pro-vides the capability to track industrial productionenergy costs on a per unit basis. For those usersinterested in graphics, E-Trend software provideshistorical energy usage information in a Windows®-based graphical display.

Through IMPACC, information communicatedfrom a Magnum Breaker includes breaker status(open/close/trip), cause and magnitude of trip,metering values, trip rating, and time stamping ofevents. The breaker itself can be remotely openedor closed.

Software Solutions to Match Your Needs

IMPACC software is available to meet specific re-quirements, providing for easy expansion as sys-tem requirementsincrease. This soft-ware ranges fromsimple monitoringto complex powermanagement appli-cations. IMPACCbrings intelligenceto any distributionsystem for energymonitoring, preven-tive maintenance,expert system diag-nostics, and customcontrol applications.

The independently operatedand lockable shutter designprovides a safe environmentwhen the breaker is removedfrom the cassette.

Rear view of integrally-designedcassette showing generousspacing for customer busconnections.

The drawout breaker can beconveniently racked in or out,stopping at the various positionswith the door closed.

The breaker spring charginghandle is designed with suffi-cient space for operation evenwith a gloved hand.

4 Magnum Magnum 13

34

7

65

89

10

12

13

1514

1

2

11

Magnum

Maximum Volts Breaker Interrupting WithstandAmperes Rating

800 690 MWI408 40 kA 40 kA 1690 MWI608 65 kA 65 kA 1690 MWI808 85 kA 85 kA 1


1600 690 MWI616 65 kA 65 kA 1690 MWI816 85 kA 85 kA 1

2000 690 MWI620 65 kA 65 kA 1690 MWI820 85 kA 85 kA 1440 MWIC20 100 kA 85 kA 1690 MWI620 65 kA 50 kA 3690 MWI820 85 kA 65 kA 3

2500 690 MWI625 65 kA 65 kA 3690 MWI825 85 kA 85 kA 3

3200 690 MWI632 65 kA 65 kA 1690 MWI832 85 kA 85 kA 1440 MWIC32 100 kA 85 kA 1690 MWI832 85 kA 65 kA 3

4000 690 MWI640 65 kA 65 kA 1690 MWI840 85 kA 85 kA 1690 MWIC40 100 kA 100 kA 1690 MWIE40 150 kA 100 kA 1

5000 690 MWI850 85 kA 85 kA 1690 MWIC50 100 kA 100 kA 1690 MWIE50 150 kA 100 kA 1


100 Percent Rated…Meets or Exceed Standards

■ Magnum Breakers are 100% rated, meaning nothermal derating is required when applying thebreaker in an enclosure.

■ Full third party KEMA certification. The only aircircuit breaker to carry this certification for bothshort circuit and endurance test requirements. 3 Pole Breaker

Amperes Dimensions – Millimeters (Inches)

H D* W

800-3200 416.56 (16.40) 391.16 (15.40) 414.02 (16.30)4000-6300 416.56 (16.40) 391.16 (15.40) 868.68 (34.20)

* Drawout breaker with finger clusters.

414.02 391.16

256.64 133.35 31.62410.21 340.11

351.89 416.56

77.98

868.68 391.16

256.64 133.35 31.62864.87 340.11

351.89 416.56

77.98

800-3200 Ampere Fixed Frame


Metering and Protection Products

Breaker Interface ModuleCentralised Local or Remote Monitoringand Information Display■ A communications centre that monitors up to

50 Magnum Breakers equipped with DigitripRMS Electronic or Programmable Trip Units.

■ Can be used to programme/test programmabletrip units.

■ Displays status, cause of trip, metered values(including current at time of trip), and energyinformation from each monitored device.

Factory or OEM Installed in Low Voltage Equipment

Cutler-Hammer was the first manufacturer to cost-effectively bring microprocessor-based metering

IQ AnalyzerA Highly Accurate Meter that ProvidesEnergy Management and Power Quality Informationon an Easy-to-Read Display■ Meets rigid Class 10 accuracy specification for

revenue meters.■ Waveform display includes the ability to detect

subcycle voltage disturbances, including voltagetransients and subcycle voltage interruptions.

■ Analysis screens provide detailed information ontrends, recorded events/alarms, harmonic distor-tion, and peak demands of current and power.

IQ DP-4000™

A Full Function Meter Idealfor Complete System Monitoring■ Direct reading metered values including watts, watt

demand, watthours, power factor, VA, VA hours,varhours, percentage THD, and load shedding.

■ Other direct reading metered values include acamperes, ac voltage, and frequency.

■ Protection functions include phase loss, phaseunbalance, phase reversal, overvoltage, under-voltage, and delay.

Clipper Power SystemTransient Voltage Surge Suppression (TVSS)■ Protects sensitive equipment from the damaging

effects of high and low energy transients as wellas high frequency noise.

■ “Zero lead length” direct bus bar connectionprovides superior performance when comparedto conventional cable connected or nonintegratedsolutions, resulting in the lowest let-through volt-age in the industry.

■ Viewed parameters include current, voltage, power(watts, vars, and VA), energy, frequency, demand,power factor, percentage THD current, percentageTHD voltage, K Factor, CBEMA derating factor, crestfactor, discrete I/O status, and analog input reading.

■ Easy-to-use. All programming is completed bythe operator on the faceplate. A PC is not required.

■ Provides true rms sensing through the 50th har-monic and displays even and odd multiples ofthe fundamental current and voltage through the50th harmonic.

■ Nonvolatile memory.■ Optional IMPACC communications capability.

■ Replaces individually mounted and wired amme-ters, voltmeters, ammeter and voltmeter switches,wattmeters, varmeters, power factor meters, fre-quency meters, watthour and demand meters.

■ Nonvolatile memory.■ Optional IMPACC communications capability.■ True rms sensing.

and protection devices to the basic levels of plantoperation. These devices provide more usable in-formation with greater accuracy.

■ Monitored locally at the switchgear or, for example,remotely at the maintenance engineer’s office.

■ Centralised alternative to individually mountedand wired ammeters and ammeter switches,watthour meters, circuit breaker position indicat-ing lights, alarm contacts, and test/programmers.

■ Monitors harmonic information.■ User friendly functions displayed by an LED

to indicate the selected function.■ Nonvolatile memory.■ Optional IMPACC communications capability.

■ Highest level of filtering in the industry (55 dB at100 Hz) removes common electrical disturbancesincluding high and low energy ringing transients.

■ Withstands over 3000 sequential Category C3shots (IEEE C62.41 1991) with less than a fivepercent change in clamping voltage.

■ Three levels of status monitoring.■ Standard disconnect.

12 Magnum Magnum 5

Rating Time Seconds

Magnum Breaker RatingsBreaker Ratings at 380/415, 440 and 500/690 Volts

The innovative design and engineer-ing advancements of MagnumBreakers have resulted in dramaticsize reductions and increased inter-rupting ratings…in just two physi-cal frame sizes.

4000-6300 Ampere Fixed Breaker

800-3200 Ampere Drawout Breaker

3 Pole CassetteAmperes Dimensions – Millimeters (Inches)

H* D W

800-3200 483.88 (19.05) 460.11 (18.11) 416.50 (16.40)4000-6300 483.88 (19.05) 460.11 (18.11) 889.35 (35.01)

* If vertical adapters are used, add 39.81 mm (1.57 inches).

■ Units are built and tested in an ISO 9000 certifiedfacility to the applicable IEC 947-2 standards.

■ Suitable for use in IEC 947-1/439-1 LV Switchgear.

Magnum

Magnum 11

2

1

3

4

56

7

A Look Inside

Designed for Easy Access, Inspection,and Minimal Maintenance

The stored energy mechanism, control devices,accessories, and secondary contacts are easilyaccessible by removing the front cover…held inplace by four captive screws. For safety, this canonly be done when the breaker is in the disconnectposition or removed from the cell.

The current sensor viewing window on the rearof the breaker allows for easy identification of thecurrent sensor mounted inside.

A contact wear indicator eliminates the need forelaborate testing to determine if the contact assem-bly needs replacing.

Many minor replacement functions involving themechanism, control, and/or accessories can beeasily accomplished.

Two-Step Stored Energy Mechanismfor Manually and Electrically Operated Breakers

The potential energy is stored in the mechanismto close the breaker in five cycles or less. Sufficientenergy to open the breaker remains available fol-lowing the closing operation.

After closing, the charging spring can be rechargedto provide potential energy for reclosing follow-ing a fault, providing high continuity of service.This feature allows for the following sequence:charge – close – recharge – open – close – open.

On manually operated breakers, closing springs arecharged by hand. For electrically operated breakers,springs are charged by an electric motor but can bemanually charged if no power is available.

This rear view of a Magnum drawoutbreaker shows the designed-in safetyfeature of locating the primary discon-nects and secondary contacts on theremovable breaker element for easyand safe inspection.

12

10

11

14

89

■1 Secondary Wiring Points

■2 Field Installable Accessories(Three Maximum)


■4 Optional ElectricCharging Motor




■8 Padlockable Levering Device

■9 Breaker Position Indicator

■10 Secondary Contacts

■11 Arc Chute Covers

■12 Primary FingerCluster Disconnects

■13 Current Sensor Window

■14 Rigid Frame Housing

13

Positioning of the secondary contact subassembly is dedicatedfor installation, maintenance, and testing. Top view shown withbreaker cover removed, bottom of photo is front of breaker.

Magnum Digitrip Trip Units

The next generation of provenDigitrip RMS Trip Units is availableexclusively on Magnum Breakers.These true rms sensing trip unitsprovide accurate coordination withthe conductors and equipment thebreaker is designed to protect.

➀ Addition range up to M1 value:<1250-M1=1400%.1600-2500-M1=1200%.>3000-M1=1000%.

In = Rating plug rating.Ir = LDPU setting.

➂ Must use NT-basedIMPACC software to enablecommunications.

➁ Cause of trip – L, S, I, G,and making current release.

Instan-taneousProtection

EarthFaultProtection

LongDelayProtection

6 Magnum

➃ Tester for secondaryinjection.

ShortDelayProtection

TRIP UNIT TYPE DIGITRIP 220 DIGITRIP 520 i DIGITRIP 520M i DIGITRIP 1150 iAmpere Range (16) 200A-6300A 200A-6300A 200A-6300A 200A-6300AInterrupting Rating at 690V 40 through 150kA 40 through 150kA 40 through 150kA 40 through 150kArms Sensing Yes Yes Yes YesPROTECTION AND COORDINATIONProtection Ordering Options LI LSI, LSIG 0LSI, LSIG, LSIA LSI, LSIG, LSIA

Fixed Rating Plug (In) Yes Yes Yes YesOvertemperature Trip Yes Yes Yes YesLong Delay Setting Fixed 0.4-1.0 x (ln) 0.4-1.0 x (In) 0.4-1.0 x (In)Long Delay Time I2t at 6 x Ir Fixed 2-24 Seconds 2-24 Seconds 2-24 SecondsLong Delay Time I4t No No No 1-5 SecondsLong Delay Thermal Memory Yes Yes Yes YesHigh Load Alarm No No No 0.7-1.0 x Ir

Short Delay Pick-Up No 200-1000% M1 x (Ir)➀ 200-1000% M1 x (Ir)➀ 150-1000% M1 x (Ir)➀Short Delay Time I2t at 8 x Ir No 100-500 ms 100-500 ms 100-500 msShort Delay Time Flat No 100-500 ms 100-500 ms 100-500 msShort Delay Time ZSI No Yes Yes YesInstantaneous Pick-Up 200-1000% x (In)➀ 200-1000% x (In)➀ 200-1000% x (In)➀ 200-1000% x (In)➀Making Current Release Yes Yes Yes YesOff Position No Yes Yes YesEarth Fault Alarm No No Yes YesEarth Fault Pick-Up No 025-100% x (In) 025-100% x (In) 25-100% x (In)Earth Fault Delay I2t at .625 x In No 100-500 ms 100-500 ms 100-500 msEarth Fault Delay Flat No 100-500 ms 100-500 ms 100-500 msEarth Fault ZSI No Yes Yes YesEarth Fault Memory No Yes Yes YesDisable Earth Fault No No No Yes

SYSTEM DIAGNOSTICSCause of Trip LEDs No 0Yes➁ 0Yes➁ 0Yes➁

Magnitude of Trip Information No No No YesRemote Signal Contacts No No Yes YesProgrammable Contacts No No No 2SYSTEM MONITORINGDigital Display No No 4 Char. LCD 24 Char. LEDCurrent (%) Full Scale Sensor No No Yes (2%) Yes (1%)Voltage (%) L to L No No No Yes (1%)Power and Energy (%) No No No Yes (2%)Apparent Power kVA and Demand No No No YesReactive Power kVAR No No No YesPower Factor No No No YesCrest Factor No No No YesPower Quality – Harmonics No No No Yes% THD No No No YesSYSTEM COMMUNICATIONSIMPACC No No No 0Yes➂

Testing Method Test Set Test Set Test Set Integral and Test Set➃ADDITIONAL FEATURESTrip Log (3 Events) No No No YesElectronic Operations Counter No No No YesTriplink No No No YesWaveform Capture No No No YesSelectable IEC Curves No No No Yes

Magnum

Two Structure Widths ProvideGreater Capacity in Less Space

Cutler-Hammer engineered Magnum to fit into twospace-saving structure widths for 3 pole: 414 mmwide for 800-3200A breaker frames and 869 mm widefor 4000-6300A breaker frames. Magnum providesopportunities for more circuit breakers in less space.

Through-the-Door Design ProvidesUser-Friendly Operation and Optimum Safety

Through-the-door design provides clear visual andphysical access to the trip unit and all breaker con-trols and indicators…including open and close but-tons, the open/close indicating flag, the charginghandle, breaker interlock, and the spring charge/dis-charge flag. Even breaker levering is accomplishedwith the breaker compartment door closed.

For safety and security, the breaker compartmentprovides three breaker positions with the doorclosed: connect, test, and disconnect.

Extension rails can be padlocked to prevent a breakerfrom being inserted into a cell, a requirement whenmaintenance is being performed. This helps assurethat no one can install a breaker and energise a circuiton which a person may be working.

Convenient Secondary Contact PlacementFacilitates Wiring and Maintenance

Secondary wiring points are located in the top frontportion of each cell. A separate door can be used tocover the contacts so an operator can safely accessthem without opening the breaker compartmentdoor. Customer contact points are dedicated to thecustomer’s interface meaning they are free fromfactory connections.

The secondary terminals have standard finger-proofhinged covers, providing safety by protecting againstaccidental contact with live secondary contacts.Covers are hinged for making connections and in-clude a small hole for circuit testing using a probe.

Each secondary contact point is dedicated to a spe-cific function, allowing standardised wiring diagramsand true electrical interchangeability of commonsize breakers. Standard wiring points help improvequality while reducing maintenance and inspectiontime for customers.

The Trip Unit

Digitrip RMS 1150i Programmable Trip Unit

The state-of-the-art trip unit with true rms sensing can be pro-grammed at the faceplate or remotely with a PC using the IMPACCcommunications system. All system parameters as well as pro-gramming information can be viewed on the easy-to-read threeline digital display window.

Electronic Trip Units

■ Digitrip RMS 220 provides long time and instan-taneous protection only.

■ Digitrip RMS 520i enables the user as many asnine phase and ground current protection settingsfor maximum flexibility in trip-curve shaping andmulti-unit coordination, and adds earth fault cur-rent protection settings.

■ Digitrip RMS 520Mi adds phase, neutral, and earthfault current metering…with a four-character LCDdisplay window.

Tim

e in

Sec

onds

Current in Multiplesof Long Delay Setting Ir

.01

.1

1

10

60

1000

7000

4000

.5 1 50202 10 100

Digitrip 520i/520MiLong and Short Delay Curves

Tim

e in

Sec

onds

Current in Multiplesof Rating In

.01

.1

1

10

60

1000

7000

4000

.05 .1 52.2 1 10

Digitrip 520i/520MiGround Curve

A Selection of Trip Units ProvidesExpanded Protection and Information Capabilities

Cutler-Hammer introduced the first microprocessor-based trip unit and has advanced the technologyinto a new family of Digitrip RMS Electronic andProgrammable Trip Units designed and engineeredexclusively for Magnum. Magnum can also be sup-plied as a nonautomatic breaker.

Programmable Trip Units

■ Digitrip RMS 1150i provides programmability formore sophisticated distribution systems including:– Increased protection and coordination capabilities.– Systems monitoring information including

power factor, voltage current, harmonic distor-tion values, and waveform capture with a three-line, (eight characters per line) LED display.

– Two programmable contacts for customer use.– Time stamping of trip events for improved

troubleshooting and diagnostics.– Accuracy of 1% on metered values and 2% on

energy and power.– Systems diagnostic information.– IMPACC communications.– Allows for custom curve shaping or selectable

IEC curves.

Zone Selective Interlocking Capability ProvidesPositive System Coordination without Time Delays

Zone Selective Interlocking (ZSI) allows the breakerclosest to the fault to trip without any preset timedelay. The breaker closest to the fault trips first,while the remainder of the distribution systemremains on-line, thus avoiding unnecessary andcostly downtime.

Ideal for Any Low Voltage Assembly

Magnum

Finger-proof (IP20) secondarypoints with easy access forcustomer wiring.

All breakers can be padlockedto secure the breaker in allthree positions. An optionalkey interlock (not shown) canalso secure the breaker in eachposition.

Magnum 710 Magnum

Safety is enhanced by the through-the-doordesign that provides for three breakerpositions with the door closed: connect,test, and disconnect. The above photosshow standard enclosure rating of IP42.

In the withdrawn position, thebreaker can be removed fromthe cell on integral extensionrails.

CONNECT

TEST

DISCONNECT

Magnum

8 Magnum

Field-Installable Accessories

Magnum

The accessory cavity design, unique to air circuit breakers, is acces-sible in the front of the breaker. Up to three accessories can beeasily installed and wired in the field.

A Common Family of Accessories for Both Frame Sizes

We designed Magnum accessories to fit both framesizes, thus reducing inventory parts and the possibleconfusion that can exist when different accessorysizes are required for each individual breaker frame.

Magnum through-the-window accessories are in-stalled in the right front of the breaker. The uniquewindows in the breaker cover enable accessoriesto be quickly identified by name and rating.

Accessories are plug-in and snapped in place, pro-viding for easy mounting and wiring to save bothinstallation time and cost. This feature facilitatesaccessory changes and replacements by user per-sonnel, eliminating the need to use factory trainedpersonnel or outside service companies.

Modular accessories are keyed for fast error-freemounting in the field. For example, the springrelease can only be mounted in the centre cavity.

An electric motor automaticallycharges the closing springs. In ab-sence of control power, the springscan be manually charged.

Viewable through-the-window electrical access-ories are identically sized,yet keyed for error-freemounting.

The auxiliary switch is an inter-nal accessory that providesremote electrical indicationof the breaker status.

Magnum modular design allowscustomers to mount accessoriesin the field.

Factory Installed or Available as Field-Installable Kits

Shunt TripProvides remotecontrolled circuitbreaker openingwhen energisedby a voltage input.

Spring ReleaseRemotely closesthe breaker whenits coil is ener-gised by a volt-age input.

UndervoltageRelease (UVR)Trips the breakerremotely whenan existing volt-age signal is lostor drops belowan establishedthreshold.

Through-the-Window Accessories

Internal Accessories

Safety and Reliability

Rigid Frame Housing

Another Cutler-Hammer innovation is the Magnum’srigid frame housing. This housing provides thestrength and stability required in the mounting ofthe current path and operating mechanism.

■ Increased Uptime. Because the current path isisolated and insulated inside a two-piece inter-connected housing, any potential damage thatmay occur during arc interruption between thepoles or outside of the breaker is minimised.

■ Increased Breaker Life. By providing rigidsupport for the operating mechanism and thecontact structure, mechanical stress is reduced,increasing reliability.

■ Design Reliability. The housing reduces thenumber of frame parts in comparison withconventional air circuit breakers, providingincreased reliability.

■ Rigid Frame. The engineered thermoset compositeresin provides excellent structural properties,dielectric strength, and arc track resistance...helping to provide the higher interrupting andwithstand ratings in a smaller size.

Built-In Safety Features ProvideOptimum Operator Safety and System Security

■ Improved C-loop current path design providesdramatic improvements in both safety andefficiency. Higher current ratings increase theblow-on forces on the contact surfaces, allowingthe proper downstream protective device toopen, isolating the fault and increasing uptime.

■ Positive on is indicated on the breaker faceplate.This unique interlocking feature prevents thelevering door from being opened if the contactsare welded, protecting personnel from exposureto live primary contacts.

■ Making current release prevents the breakerfrom closing in on a fault with peak currentexceeding 25 times the rms nominal current.

■ Keyed sensor plug insures error-free installationof the sensor in the field.

■ Deadfront faceplate isolates the operatorfrom the primary voltage when the breakeris energised.

■ Anti-pump prevents any attempts to reclose thebreaker on a short circuit fault if the close signal(mechanical or electrical) is maintained.

Connect. Both main and secondary contactsare connected and the breaker is ready fornormal operation.Test. Main disconnects are disengaged, secondarycontacts are engaged. All functions of the breakerand trip unit can be tested in this position.Disconnect. A storage position in the compartmentbut the breaker is open and disconnected.

Quality and Reliability

Cutler-Hammer performs consistent endurance andreliability tests on Magnum Air Circuit Breakers.

■ Mini-Life Tests. A breaker is randomly selectedfrom the production line daily, and mechanicallytested to assure performance as required.

■ Maxi-Life Tests. MTBF testing continuously testsMagnum Breakers until they fail. This identifiespotential performance issues with the breaker andprovides statistical analysis for further improvement.

Application Flexibility

Magnum Breakers are suitable for broad applicationsin Cutler-Hammer or OEM low voltage assemblies.

■ Interlocked levering door cannot be opened untilthe contacts are in the open condition.

■ Three position indicators on the faceplate fordrawout mounting. Specific colours identify thebreaker position.

Transfer SwitchEquipment

Motor Control Centre

Low VoltageSwitchboard

Auxiliary Switch

Provides the capa-bility to remotelyindicate if thebreaker is openor closed. Up to sixN/O and six N/Cauxiliary contactsare available forcustomer use.

OvercurrentTrip Switch(Bell Alarm)

A set of N/OandN/C contacts thatindicate when abreaker trips.

ElectricalOperator

An electric motor,internally mount-ed in the circuitbreaker, thatcharges the clos-ing springs auto-matically, facilitat-ing remote orlocal closing.

Magnum 9

Magnum

Two Structure Widths ProvideGreater Capacity in Less Space

Cutler-Hammer engineered Magnum to fit into twospace-saving structure widths for 3 pole: 414 mmwide for 800-3200A breaker frames and 869 mm widefor 4000-6300A breaker frames. Magnum providesopportunities for more circuit breakers in less space.

Through-the-Door Design ProvidesUser-Friendly Operation and Optimum Safety

Through-the-door design provides clear visual andphysical access to the trip unit and all breaker con-trols and indicators…including open and close but-tons, the open/close indicating flag, the charginghandle, breaker interlock, and the spring charge/dis-charge flag. Even breaker levering is accomplishedwith the breaker compartment door closed.

For safety and security, the breaker compartmentprovides three breaker positions with the doorclosed: connect, test, and disconnect.

Extension rails can be padlocked to prevent a breakerfrom being inserted into a cell, a requirement whenmaintenance is being performed. This helps assurethat no one can install a breaker and energise a circuiton which a person may be working.

Convenient Secondary Contact PlacementFacilitates Wiring and Maintenance

Secondary wiring points are located in the top frontportion of each cell. A separate door can be used tocover the contacts so an operator can safely accessthem without opening the breaker compartmentdoor. Customer contact points are dedicated to thecustomer’s interface meaning they are free fromfactory connections.

The secondary terminals have standard finger-proofhinged covers, providing safety by protecting againstaccidental contact with live secondary contacts.Covers are hinged for making connections and in-clude a small hole for circuit testing using a probe.

Each secondary contact point is dedicated to a spe-cific function, allowing standardised wiring diagramsand true electrical interchangeability of commonsize breakers. Standard wiring points help improvequality while reducing maintenance and inspectiontime for customers.

The Trip Unit

Digitrip RMS 1150i Programmable Trip Unit

The state-of-the-art trip unit with true rms sensing can be pro-grammed at the faceplate or remotely with a PC using the IMPACCcommunications system. All system parameters as well as pro-gramming information can be viewed on the easy-to-read threeline digital display window.

Electronic Trip Units

■ Digitrip RMS 220 provides long time and instan-taneous protection only.

■ Digitrip RMS 520i enables the user as many asnine phase and ground current protection settingsfor maximum flexibility in trip-curve shaping andmulti-unit coordination, and adds earth fault cur-rent protection settings.

■ Digitrip RMS 520Mi adds phase, neutral, and earthfault current metering…with a four-character LCDdisplay window.

Tim

e in

Sec

onds

Current in Multiplesof Long Delay Setting Ir

.01

.1

1

10

60

1000

7000

4000

.5 1 50202 10 100

Digitrip 520i/520MiLong and Short Delay Curves

Tim

e in

Sec

onds

Current in Multiplesof Rating In

.01

.1

1

10

60

1000

7000

4000

.05 .1 52.2 1 10

Digitrip 520i/520MiGround Curve

A Selection of Trip Units ProvidesExpanded Protection and Information Capabilities

Cutler-Hammer introduced the first microprocessor-based trip unit and has advanced the technologyinto a new family of Digitrip RMS Electronic andProgrammable Trip Units designed and engineeredexclusively for Magnum. Magnum can also be sup-plied as a nonautomatic breaker.

Programmable Trip Units

■ Digitrip RMS 1150i provides programmability formore sophisticated distribution systems including:– Increased protection and coordination capabilities.– Systems monitoring information including

power factor, voltage current, harmonic distor-tion values, and waveform capture with a three-line, (eight characters per line) LED display.

– Two programmable contacts for customer use.– Time stamping of trip events for improved

troubleshooting and diagnostics.– Accuracy of 1% on metered values and 2% on

energy and power.– Systems diagnostic information.– IMPACC communications.– Allows for custom curve shaping or selectable

IEC curves.

Zone Selective Interlocking Capability ProvidesPositive System Coordination without Time Delays

Zone Selective Interlocking (ZSI) allows the breakerclosest to the fault to trip without any preset timedelay. The breaker closest to the fault trips first,while the remainder of the distribution systemremains on-line, thus avoiding unnecessary andcostly downtime.

Ideal for Any Low Voltage Assembly

Magnum

Finger-proof (IP20) secondarypoints with easy access forcustomer wiring.

All breakers can be padlockedto secure the breaker in allthree positions. An optionalkey interlock (not shown) canalso secure the breaker in eachposition.

Magnum 710 Magnum

Safety is enhanced by the through-the-doordesign that provides for three breakerpositions with the door closed: connect,test, and disconnect. The above photosshow standard enclosure rating of IP42.

In the withdrawn position, thebreaker can be removed fromthe cell on integral extensionrails.

CONNECT

TEST

DISCONNECT

Magnum

Magnum 11

2

1

3

4

56

7

A Look Inside

Designed for Easy Access, Inspection,and Minimal Maintenance

The stored energy mechanism, control devices,accessories, and secondary contacts are easilyaccessible by removing the front cover…held inplace by four captive screws. For safety, this canonly be done when the breaker is in the disconnectposition or removed from the cell.

The current sensor viewing window on the rearof the breaker allows for easy identification of thecurrent sensor mounted inside.

A contact wear indicator eliminates the need forelaborate testing to determine if the contact assem-bly needs replacing.

Many minor replacement functions involving themechanism, control, and/or accessories can beeasily accomplished.

Two-Step Stored Energy Mechanismfor Manually and Electrically Operated Breakers

The potential energy is stored in the mechanismto close the breaker in five cycles or less. Sufficientenergy to open the breaker remains available fol-lowing the closing operation.

After closing, the charging spring can be rechargedto provide potential energy for reclosing follow-ing a fault, providing high continuity of service.This feature allows for the following sequence:charge – close – recharge – open – close – open.

On manually operated breakers, closing springs arecharged by hand. For electrically operated breakers,springs are charged by an electric motor but can bemanually charged if no power is available.

This rear view of a Magnum drawoutbreaker shows the designed-in safetyfeature of locating the primary discon-nects and secondary contacts on theremovable breaker element for easyand safe inspection.

12

10

11

14

89

■1 Secondary Wiring Points

■2 Field Installable Accessories(Three Maximum)


■4 Optional ElectricCharging Motor




■8 Padlockable Levering Device

■9 Breaker Position Indicator

■10 Secondary Contacts

■11 Arc Chute Covers

■12 Primary FingerCluster Disconnects

■13 Current Sensor Window

■14 Rigid Frame Housing

13

Positioning of the secondary contact subassembly is dedicatedfor installation, maintenance, and testing. Top view shown withbreaker cover removed, bottom of photo is front of breaker.

Magnum Digitrip Trip Units

The next generation of provenDigitrip RMS Trip Units is availableexclusively on Magnum Breakers.These true rms sensing trip unitsprovide accurate coordination withthe conductors and equipment thebreaker is designed to protect.

➀ Addition range up to M1 value:<1250-M1=1400%.1600-2500-M1=1200%.>3000-M1=1000%.

In = Rating plug rating.Ir = LDPU setting.

➂ Must use NT-basedIMPACC software to enablecommunications.

➁ Cause of trip – L, S, I, G,and making current release.

Instan-taneousProtection

EarthFaultProtection

LongDelayProtection

6 Magnum

➃ Tester for secondaryinjection.

ShortDelayProtection

TRIP UNIT TYPE DIGITRIP 220 DIGITRIP 520 i DIGITRIP 520M i DIGITRIP 1150 iAmpere Range (16) 200A-6300A 200A-6300A 200A-6300A 200A-6300AInterrupting Rating at 690V 40 through 150kA 40 through 150kA 40 through 150kA 40 through 150kArms Sensing Yes Yes Yes YesPROTECTION AND COORDINATIONProtection Ordering Options LI LSI, LSIG 0LSI, LSIG, LSIA LSI, LSIG, LSIA

Fixed Rating Plug (In) Yes Yes Yes YesOvertemperature Trip Yes Yes Yes YesLong Delay Setting Fixed 0.4-1.0 x (ln) 0.4-1.0 x (In) 0.4-1.0 x (In)Long Delay Time I2t at 6 x Ir Fixed 2-24 Seconds 2-24 Seconds 2-24 SecondsLong Delay Time I4t No No No 1-5 SecondsLong Delay Thermal Memory Yes Yes Yes YesHigh Load Alarm No No No 0.7-1.0 x Ir

Short Delay Pick-Up No 200-1000% M1 x (Ir)➀ 200-1000% M1 x (Ir)➀ 150-1000% M1 x (Ir)➀Short Delay Time I2t at 8 x Ir No 100-500 ms 100-500 ms 100-500 msShort Delay Time Flat No 100-500 ms 100-500 ms 100-500 msShort Delay Time ZSI No Yes Yes YesInstantaneous Pick-Up 200-1000% x (In)➀ 200-1000% x (In)➀ 200-1000% x (In)➀ 200-1000% x (In)➀Making Current Release Yes Yes Yes YesOff Position No Yes Yes YesEarth Fault Alarm No No Yes YesEarth Fault Pick-Up No 025-100% x (In) 025-100% x (In) 25-100% x (In)Earth Fault Delay I2t at .625 x In No 100-500 ms 100-500 ms 100-500 msEarth Fault Delay Flat No 100-500 ms 100-500 ms 100-500 msEarth Fault ZSI No Yes Yes YesEarth Fault Memory No Yes Yes YesDisable Earth Fault No No No Yes

SYSTEM DIAGNOSTICSCause of Trip LEDs No 0Yes➁ 0Yes➁ 0Yes➁

Magnitude of Trip Information No No No YesRemote Signal Contacts No No Yes YesProgrammable Contacts No No No 2SYSTEM MONITORINGDigital Display No No 4 Char. LCD 24 Char. LEDCurrent (%) Full Scale Sensor No No Yes (2%) Yes (1%)Voltage (%) L to L No No No Yes (1%)Power and Energy (%) No No No Yes (2%)Apparent Power kVA and Demand No No No YesReactive Power kVAR No No No YesPower Factor No No No YesCrest Factor No No No YesPower Quality – Harmonics No No No Yes% THD No No No YesSYSTEM COMMUNICATIONSIMPACC No No No 0Yes➂

Testing Method Test Set Test Set Test Set Integral and Test Set➃ADDITIONAL FEATURESTrip Log (3 Events) No No No YesElectronic Operations Counter No No No YesTriplink No No No YesWaveform Capture No No No YesSelectable IEC Curves No No No Yes

Magnum

Maximum Volts Breaker Interrupting WithstandAmperes Rating



1600 690 MWI616 65 kA 65 kA 1690 MWI816 85 kA 85 kA 1

2000 690 MWI620 65 kA 65 kA 1690 MWI820 85 kA 85 kA 1440 MWIC20 100 kA 85 kA 1690 MWI620 65 kA 50 kA 3690 MWI820 85 kA 65 kA 3

2500 690 MWI625 65 kA 65 kA 3690 MWI825 85 kA 85 kA 3

3200 690 MWI632 65 kA 65 kA 1690 MWI832 85 kA 85 kA 1440 MWIC32 100 kA 85 kA 1690 MWI832 85 kA 65 kA 3

4000 690 MWI640 65 kA 65 kA 1690 MWI840 85 kA 85 kA 1690 MWIC40 100 kA 100 kA 1690 MWIE40 150 kA 100 kA 1



100 Percent Rated…Meets or Exceed Standards

■ Magnum Breakers are 100% rated, meaning nothermal derating is required when applying thebreaker in an enclosure.

■ Full third party KEMA certification. The only aircircuit breaker to carry this certification for bothshort circuit and endurance test requirements. 3 Pole Breaker

Amperes Dimensions – Millimeters (Inches)

H D* W

800-3200 416.56 (16.40) 391.16 (15.40) 414.02 (16.30)4000-6300 416.56 (16.40) 391.16 (15.40) 868.68 (34.20)

* Drawout breaker with finger clusters.

414.02 391.16

256.64 133.35 31.62410.21 340.11

351.89 416.56

77.98

868.68 391.16

256.64 133.35 31.62864.87 340.11

351.89 416.56

77.98



Metering and Protection Products

Breaker Interface ModuleCentralised Local or Remote Monitoringand Information Display■ A communications centre that monitors up to

50 Magnum Breakers equipped with DigitripRMS Electronic or Programmable Trip Units.

■ Can be used to programme/test programmabletrip units.

■ Displays status, cause of trip, metered values(including current at time of trip), and energyinformation from each monitored device.

Factory or OEM Installed in Low Voltage Equipment

Cutler-Hammer was the first manufacturer to cost-effectively bring microprocessor-based metering

IQ AnalyzerA Highly Accurate Meter that ProvidesEnergy Management and Power Quality Informationon an Easy-to-Read Display■ Meets rigid Class 10 accuracy specification for

revenue meters.■ Waveform display includes the ability to detect

subcycle voltage disturbances, including voltagetransients and subcycle voltage interruptions.

■ Analysis screens provide detailed information ontrends, recorded events/alarms, harmonic distor-tion, and peak demands of current and power.

IQ DP-4000™

A Full Function Meter Idealfor Complete System Monitoring■ Direct reading metered values including watts, watt

demand, watthours, power factor, VA, VA hours,varhours, percentage THD, and load shedding.

■ Other direct reading metered values include acamperes, ac voltage, and frequency.

■ Protection functions include phase loss, phaseunbalance, phase reversal, overvoltage, under-voltage, and delay.

Clipper Power SystemTransient Voltage Surge Suppression (TVSS)■ Protects sensitive equipment from the damaging

effects of high and low energy transients as wellas high frequency noise.

■ “Zero lead length” direct bus bar connectionprovides superior performance when comparedto conventional cable connected or nonintegratedsolutions, resulting in the lowest let-through volt-age in the industry.

■ Viewed parameters include current, voltage, power(watts, vars, and VA), energy, frequency, demand,power factor, percentage THD current, percentageTHD voltage, K Factor, CBEMA derating factor, crestfactor, discrete I/O status, and analog input reading.

■ Easy-to-use. All programming is completed bythe operator on the faceplate. A PC is not required.

■ Provides true rms sensing through the 50th har-monic and displays even and odd multiples ofthe fundamental current and voltage through the50th harmonic.

■ Nonvolatile memory.■ Optional IMPACC communications capability.

■ Replaces individually mounted and wired amme-ters, voltmeters, ammeter and voltmeter switches,wattmeters, varmeters, power factor meters, fre-quency meters, watthour and demand meters.

■ Nonvolatile memory.■ Optional IMPACC communications capability.■ True rms sensing.

and protection devices to the basic levels of plantoperation. These devices provide more usable in-formation with greater accuracy.

■ Monitored locally at the switchgear or, for example,remotely at the maintenance engineer’s office.

■ Centralised alternative to individually mountedand wired ammeters and ammeter switches,watthour meters, circuit breaker position indicat-ing lights, alarm contacts, and test/programmers.

■ Monitors harmonic information.■ User friendly functions displayed by an LED

to indicate the selected function.■ Nonvolatile memory.■ Optional IMPACC communications capability.

■ Highest level of filtering in the industry (55 dB at100 Hz) removes common electrical disturbancesincluding high and low energy ringing transients.

■ Withstands over 3000 sequential Category C3shots (IEEE C62.41 1991) with less than a fivepercent change in clamping voltage.

■ Three levels of status monitoring.■ Standard disconnect.

12 Magnum Magnum 5

Rating Time Seconds

Magnum Breaker RatingsBreaker Ratings at 380/415, 440 and 500/690 Volts

The innovative design and engineer-ing advancements of MagnumBreakers have resulted in dramaticsize reductions and increased inter-rupting ratings…in just two physi-cal frame sizes.

4000-6300 Ampere Fixed Breaker

800-3200 Ampere Drawout Breaker

3 Pole CassetteAmperes Dimensions – Millimeters (Inches)

H* D W

800-3200 483.88 (19.05) 460.11 (18.11) 416.50 (16.40)4000-6300 483.88 (19.05) 460.11 (18.11) 889.35 (35.01)

* If vertical adapters are used, add 39.81 mm (1.57 inches).

■ Units are built and tested in an ISO 9000 certifiedfacility to the applicable IEC 947-2 standards.

■ Suitable for use in IEC 947-1/439-1 LV Switchgear.

MagnumThe Air Circuit Breaker

Introducing Another Air Circuit Breaker First!

The Highest Interrupting and Withstand Ratings…in the Smallest Physical Unit Size

Our Cutler-Hammer design team innovations, coupledwith customer focus group input, provided the re-defi-nition of what is needed in an air circuit breaker:

■ The capability to design more flexible systemsthat can withstand larger available fault currents.

■ Better coordination with downstream devices.■ Integral arc hood means zero clearance for draw-

out cassette.■ Reduced size of the switchgear assembly.■ Integrally designed breaker levering mechanism

and cassette for drawout breakers provides clear in-dication of connect, test, and disconnect positions.

Cutler-Hammer Met the Challenge

Magnum is designed and engineered specifically foruse in low voltage assemblies applied at nominal volt-ages of 380/415, 440 and 500/690V ac. Nine continuousratings – 800 amperes through 6300 amperes – arecovered by only two breaker sizes. Drawout and fixedmounting available in 3 or 4 pole designs.

Controls and indicators are functionally grouped onthe front escutcheon of the breakers where they canbe easily viewed and accessed through a cutout door.

■1 Integral Arc Hood

■2 Front Mounted Secondary Contacts

■3 Trip Flag

■4 Three Accessory Windows

■5 Spring Status Indicator (Charged or Discharged)

■6 Contact Status Indicator (Open or Closed)


■8 “Push On” to Close Breaker Button

■9 “Push Off” to Open Breaker Button


■11 Drawout Cassette



■14 Integral Padlockable Levering Device

■15 Colour-Coded Breaker Position Indicators

IMPACC Communications

Magnum

Highly Reliable, Comprehensive Communicationsthat will Improve Your Operating Efficiency

Your main objective is to produce a cost-effective,high quality product or service. Several things standin your way – unexpected equipment downtime,energy costs, reduced maintenance personnel,tighter budgets, and limited capital or cash flow.Downtime or power outage costs can cause signifi-cant lost production time and related expenses.

How Can You Excel in this Environment?

By obtaining information and making it availablein real time to the people who need to have it…provided cost-effectively in a simple format thateach person can understand and use. You canobtain this information from your electrical distri-bution system with a Cutler-Hammer IMPACCCommunications System.

With Magnum, for example, a master control unitis used to communicate with the breaker’s DigitripRMS 1150i Trip Unit, and other IQ devices such asan IQ Analyzer and IQ DP-4000. The master controlunit may be a personal computer, an existing build-ing management system, a programmable logiccontroller, or a distributed control system.

E-TRENDE-BILL

IMPACC Software

IMPACC features a suite of client-server softwareproducts. Cutler-Hammer designed IMPACC specifi-cally as a complete electrical distribution systemmonitoring programme that includes graphicalone-line and elevation displays, waveform analysis,trip curve coordination, historical trending, eventand alarm management.

IMPACC was designed to communicate using anexisting or dedicated plant TCP/IP Ethernet network.Client software will operate on Microsoft® Windows®

NT and 95 operating systems. Server software op-erates on Windows® NT exclusively for maximumsystem reliability.

TRIP CURVE COORDINATIONWAVEFORM ANALYSIS

ELEVATION DISPLAYONE LINE DIAGRAM

E-Bill Software

E-Bill is an exclusive metering and analysis packagedesigned to gather data for improved allocation andmanagement of energy costs. As an enhancementto E-Bill, Cutler-Hammer offers E-Track, which pro-vides the capability to track industrial productionenergy costs on a per unit basis. For those usersinterested in graphics, E-Trend software provideshistorical energy usage information in a Windows®-based graphical display.

Through IMPACC, information communicatedfrom a Magnum Breaker includes breaker status(open/close/trip), cause and magnitude of trip,metering values, trip rating, and time stamping ofevents. The breaker itself can be remotely openedor closed.

Software Solutions to Match Your Needs

IMPACC software is available to meet specific re-quirements, providing for easy expansion as sys-tem requirementsincrease. This soft-ware ranges fromsimple monitoringto complex powermanagement appli-cations. IMPACCbrings intelligenceto any distributionsystem for energymonitoring, preven-tive maintenance,expert system diag-nostics, and customcontrol applications.

The independently operatedand lockable shutter designprovides a safe environmentwhen the breaker is removedfrom the cassette.

Rear view of integrally-designedcassette showing generousspacing for customer busconnections.

The drawout breaker can beconveniently racked in or out,stopping at the various positionswith the door closed.

The breaker spring charginghandle is designed with suffi-cient space for operation evenwith a gloved hand.

4 Magnum Magnum 13

34

7

65

89

10

12

13

1514

1

2

11

Magnum

Technology

Advancements

and Innovative

Features

Our Customers

Asked For

in an

Air Circuit

Breaker

Cutler-Hammer…A Global Provider of

Electrical Power Distribution Solutions

A Key to Distribution System Reliability

Nonlinear loads, momentary voltagetransients, and surges can cause signifi-cant power quality problems in both in-dustrial and commercial facilities. Manyindustrial processes and solid-state de-vices are extremely sensitive to powerquality problems…and manufacturingoperations can be disrupted by voltageor frequency variances. Poor powerquality can result in expensive downtimeand costly equipment failures. Computerdata centres are very sensitive and minorpower disturbances can result in down-time and significant operational problems.

The negative effect of harmonics can re-sult in overheated neutrals in panelboards,switchboards, overheated transformers,and nuisance tripping of breakers andadjustable frequency drives.

Energy: If You Can’t Measure It,You Can’t Manage It

Energy consumption is a major opera-tions cost for any building and a signifi-cant part of every tenant’s rent. Electricutilities, reacting to increased demands,have developed programmes that providecost reductions for energy conservation...but penalise for usage during peak de-mand hours. Additionally, re-regulationof the utility industry is creating newopportunities to save energy and signifi-cantly reduce energy expenses.

Tenants have the option to decreaseconsumption if they can monitor energyusage. By reducing their consumption,peak demand charges (often a substan-tial portion of a building’s electric bill)will be lowered, thus making the buildingmore attractive to prospective tenants.

Decreases in energy consumption arealso important in manufacturing facilitydepartments or “lines”. Many manufac-turing companies are now placing theresponsibility for energy budgeting at theline foreman level…and this includes cal-culating energy costs just the same as forlabor, materials, and other direct expenses.

14 Magnum Magnum 3

For Greater Reliability, Increased Productivity,and Significant Cost Savings...Cutler-Hammer has the Solutions

Cutler-Hammer Power for Productivity

In today’s sophisticated

distribution systems, providing

power requires more than just

meeting minimum standards.

It necessitates implementation

of solutions that range from

efficient distribution to

coordination to power quality

to energy management to

communications! The end result

is the production of cost-effective,

high quality products.

Power Quality Energy Management

Magnum:

The New

Low Voltage

Air Circuit

Breaker from

Cutler-Hammer

For nearly 70 years Cutler-Hammer has designed, engineered, and manu-factured low voltage circuit breakers and trip units. Our unique productdevelopments have continually set the standard for quality, reliability, andextended operating life.

We’re an industry leader in air circuit breaker innovations such as the firstsolid-state trip unit, the first microprocessor-based trip unit, zone selectiveinterlocking, and the DE-ION® arc extinguisher that provides superior arcquenching. We also innovated the Series C® Moulded Case Circuit Breakerfamily that meets all major electrical world standards.

As a result of our extensive experience and worldwide installed base, we’velearned that air circuit breaker requirements constantly change. System de-signers continually demand increased performance, necessitating innova-tive solutions that provide higher ratings in less space, enhanced safety, andallow for easier maintenance…plus the increasingly important capabilitiesof communications and power quality monitoring and measurement.

Anticipating future electrical distribution system design requirements and in-dustry trends worldwide, Cutler-Hammer engineers and scientists combined their extensiveair and moulded case circuit breaker expertise with input from industry-leading customers.The result is the next generation of air circuit breakers…the revolutionary Magnum.

Highest Ratings, Greater Strength, and Expanded Capabilities…in Less Space

We designed the Magnum Air Circuit Breaker with a rigid frame housing, making it struc-turally stronger while providing greater interrupting and withstand ratings in less spacethan any other air circuit breaker. The innovative arc running system enables Magnum tocontrol the arc direction while also providing for higher interrupting capacity in a smallerspace. This system provides for longer contact life and increased interrupting ratings.

Increased ratings in less space provide opportunities to design more rugged electricaldistribution systems that can handle larger available fault currents, and provide for bettercoordination with downstream devices.

We also included capabilities for our customers to use Cutler-Hammer industry-leadingcommunications and power quality measurement technologies.

■ Highest Interruption and Withstand Ratings. Magnum provides the industry’s highestinterrupting ratings available in a physically smaller size.

■ Through-the-Door Design. All controls, indicators, and the trip unit are visible and canbe safely accessed without opening the compartment door.

■ Common Height and Depth. Each Magnum breaker frame size has the identical heightand depth, a feature unique in the industry.

■ A New Family of Trip Units. A full range of Digitrip® Electronic and Programmable TripUnits has been developed to provide customers a choice of expanded protection, infor-mation, power quality measurement, and communication capabilities to meet specificrequirements.

Magnum Application FlexibilityMagnum Breakers are designed for use in low voltage assemblies including switchgear,switchboards, motor control centres, and transfer switch equipment.

Cutler-Hammer Engineering Services and Systems

Enhancing Existing Equipment Reliability

Increased system loads and normalequipment wear can alter performancecharacteristics and introduce unexpectedline variables. Cutler-Hammer Engineer-ing Services and Systems provides asolution with skilled engineers and tech-nicians that conduct power quality sitesurveys, and monitoring and evaluationstudies in addition to providing mainte-nance and retrofit services for existingequipment.

™

Magnum

If Your System’s Not Up…It’s Down

In today’s electrical distribution systems,the demand for higher standards of pro-tection and coordination are driven bydemands for a more reliable, more accu-rate distribution system. A distributionsystem that eliminates unnecessary trips,isolates a fault to ensure minimum down-time, and provides system informationto assist the user to better manage thesystem.

Cutler-Hammer has developed a com-plete family of microprocessor-based de-vices to meet the demands of users anddesigners of electrical distribution sys-tems. Our Digitrip OPTIM Programmableand Digitrip RMS Electronic Trip Unitsoffer circuit protection, information, inte-gral testing, remote communications,and energy monitoring functions for lowvoltage breakers…while a Digitrip 1150iProgrammable Trip Unit has been engi-neered exclusively for Magnum Breakers.

Power for Productivity

Energy costs are rising an average eightto 10 percent per year…maintenance andengineering staffs are trying to do morewith less…and electrical power quality isdecreasing. These situations are provid-ing increased pressure on electrical staffpersonnel to improve quality.

A solution is power distribution monitor-ing because it provides information fromthe utility substation all the way down to asmall kW motor…quickly and reliably, em-powering maintenance and engineeringto take control of the distribution system.Data on energy consumption, mainte-nance requirements, and troubleshootingare at their fingertips, providing savings inboth time and money. The Cutler-HammerIMPACC System uniquely interrogatesthe electrical system for necessary first-hand information and displays it witheasy-to-understand software.

Magnum 15

Reliabilityand Uptime

Information andSystems Integration

More Information

Visit our Website

Magnum is accessible on-line throughthe Cutler-Hammer Internet site. Visitthe Cutler-Hammer homepage atwww.cutlerhammer.eaton.comand click on Magnum.

Magnum Literature

Additional product literature is avail-able from your local Cutler-Hammersales office.

Magnum Breaker Product Aid(PA.22F.02.S.U) – Bulletised two-page format, including uniquebreaker features, ratings, anddimensional data.

Magnum Product Guide(PG.22F.01.T.U) – Detailed mate-rial on Magnum functions, tech-nology, ratings, dimensions, andordering information.

Cutler-Hammer Sales Offices

For a detailed presentation on theadditional benefits and cost savingsthat Magnum can create for you,call your nearest Cutler-Hammersales office or distributor.

Copyright Cutler-Hammer Corporation, 1998.All Rights Reserved

A result is information that is used toassess the on-line performance of aninstalled power system, followed byintelligent action to keep the systemon-line and productive.

Pittsburgh, Pennsylvania U.S.A.

Publication No. B.22F.01.S.USeptember 1998Printed in U.S.A. / CMS 2301

Cutler-Hammer, a part of Eaton Corporation, is a worldwide leader providingcustomer-driven solutions. From power distribution and electrical control productsto industrial automation, Cutler-Hammer utilizes advanced product development,world-class manufacturing, and offers global engineering services and support.

For more information on Cutler-Hammer products and services,call 1-800-525-2000 or 1-616-982-1059, or visit our website atwww.cutlerhammer.eaton.com

MAGNUMLOW VOLTAGE AIR CIRCUIT BREAKERS

Achieving the Industry’s HighestInterruption and Withstand Ratings

In a New Compact Design

B22

F01S

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