What is aMotor

ControlCentre?

A Motor Control Centre isa grouping of various motor

control & distributiondevices in one commonenclosure, fed from acommon bus system

A Motor Control Centreconsists of 4 basic

components:

-Incoming-Enclosure

-Bus System-Units

Cutler-Hammer manufactures2 lines of Motor Control

Centres

Freedom Series 2100

Advantage

IncomingMain Lugs Only

MCC fed by upstream CB or FusibleSwitch and therefore there is no meansto disconnect power at the MCC.

Screw or Crimp type, up to 1000 MCM6 per phase, Top or bottom entry

Lugs are connected to Vertical Bus,which has the same rating as theHorizontal Bus (up to 1600A)

Incoming

Cutler-Hammer Series‘C’ Circuit Breakers ‘F’ (150A & 225A) Frame

comes standard with ThermalMagnetic trips only

K (400A) & L (600A) Frameare available with Thermal

Magnetic or optional DigitripRMS 310 Electronic Trip

N (800A & 1200A) & R(1600A, 2000A & 2500A)

Frame are stnd with DigitripRMS 310 Electronic Trip

Main Circuit Breaker

Incoming

Main Fusible SwitchCutler-Hammer heavy duty Industrially rated K Switch

Available up to 1200 Amps

Molded Case SwitchUsing Hi-Mag CB (MCS) to provide disconnecting means at

MCC, without short circuit protection

Incoming

Bus Link to existingCutler-Hammer MCC’s

Bus Duct EntryManufactured to suit

customer’s bus duct, basedupon customer supplied bus

duct flange drawing

Bus links & Transition cells toconnect to Cutler-Hammer,

Westinghouse, Commander &Sylvania MCC’s manufactured since

1950

Transition Sections10” wide cells provide

transition to Switchgear &Transformers

EnclosureIndoor

-EEMAC 1-EEMAC 1A (gasketed)EEMAC 2 (driphood)

EEMAC 12 (dust tight)

Outdoor-EEMAC 3R (rain, sleet proof)

walk in or non-walk in

Enclosure

Standard Section height is90”, not including 1” high

channel sill

Standard Section width is 20”

Wider Sections are available for largerstarters, Transfer Switches, PLC’s, etc.

20” 24” 28” 32” 44”

Enclosure

Side View

16” deepSection

Ver

tical

Bus

Loc

atio

n

Units mounton Front Side

only

16” 21”

Side View

21” deepSection

Units mounton Front Side

Units mounton rear on

Back to BackMCC’s

Ver

tical

Bus

Loc

atio

n

Cutler-Hammer’s standard back toback arrangement is a total of 21”

deep and employs a commonHorizontal & Vertical Bus for front

& rear units.

As an alternate, we can supply 16”or 21” deep (front mounted sections)mounted back to back, to form a 32”

or 42” deep back to back design,with 2 sets of busses. Horizontalbusses would be cross connected

with custom buswork

Enclosure

Enclosure9” high top and bottom wireways on Front

mounted sections

4 5/8” vertical wireway(larger wireways available on sections over

20” wide)

15” top & 3” bottom wireway standard onrear sections and optional on front

72” of unit mounting space available onFront and Rear of all sections

Reduced height sectionsavailable in increments of 6”

Enclosure-ASA 61 exterior finish (ASA 49 and other special colours available as an option)-White interior panels-12 gauge steel sub frame-14 gauge steel doors & covers-lifting eyes

Optional features:-Channel sills (adds 1” to overall height)-Bottom plates (stnd on EEMAC 12)-Driphood-Space heater & thermostat-Non conductive handrails-Canopy lights-Corner sections+

Handrail

Driphood

MCC Bus System

Horizontal Bus

Vertical Bus

Horizontal Ground Bus

Option Vertical Ground

Neutral Bus

Horizontal Ground Bus can be mounted at bottomif no Neutral bus is being used

Horizontal BusCopper or AluminumTin or Silver plated

-600 Amp-800 Amp

-1200 Amp-1600 Amp-2000 Amp-2500 Amp-3200 Amp

CSA rated for 65 degree C rise

Vertical BusCopper or AluminumTin or Silver plated

-400 Amp (standard on Frontmounted sections

-600 Amp (standard on Back toBack Sections, optional on front)

-800 Amp-1200 Amp-1600 Amp

In the incoming section, the Vertical bus hasthe same rating as the Horizontal bus (up to

1600A)

Ground BusHorizontal Ground Bus (stnd locationat top of section, also may be mounted

at bottom of section)

Standard horizontal ground is 300Amp (1/4 x 1”). Optional 600 Amp

(1/4 x 2”) is available

Optional Vertical Ground Bus (1/4 x 1”)mounted in the vertical wireway

Neutral Bus On 4 wire systems, mounted atbottom of section, available at 300A,

600A and 800A

Bus Bracing

Bus braces mechanically holdthe bus in place and prevent bus

deflection caused by a shortcircuit

Standard Horizontal and VerticalBus bracings are 42,000 Amps

65,000 & 100,000 Amp bracingare available as options

Bus IsolationAll MCC power busses are

isolated to prevent accidentalcontact

Horizontal bus is mountedbehind steel barriers the top

wireway

Vertical bus comes with glasspolyester barriers with

removeable stab hole covers

Glass Polyestor Barrierswith stab covers

Bus Insulation

Horizontal bus is available withoptional Insulating boots, up to

2500 amp

An optional Labyrinth Insulatingbarrier is available on the

Vertical bus. Optional automaticshutters are available.

Bus boots on the Horizontal bus

Labyrinth barriers on Vertical bus

MCC Bus SystemHorizontal Bus600 Amp to 3200 Amp

Vertical Bus400 Amp to 1600 Amp

Horizontal Ground Bus300 Amp (1/4 x 1”)or 600 Amp (1/4 x 2”)

Option Vertical Ground300 Amp (1/4 x 1”)

Neutral Bus300 Amp, 600 Ampor 800 Amp

Horizontal Ground Bus can be mounted at bottomif no Neutral bus is being used

Incoming Cables

Main CircuitBreaker Open

MCC bus notEnergized

Main CircuitBreaker Closed

MCC busEnergized

Incoming Cables

PLU

G O

NTO

MC

CV

ERTI

CA

L B

US

TO M

OTO

R

M

R

OL

TO M

OTO

R

STA

RTE

R

STOPSTART

M

M

Main CB ClosedMCC Bus Energized

Starter CB Open

Main CB ClosedMCC Bus Energized

Starter CB Closed

PLU

G O

NTO

MC

CV

ERTI

CA

L B

US

TO M

OTO

R

M

R

OL

TO M

OTO

R

STA

RTE

R

STOPSTART

M

M

Main CB ClosedMCC Bus Energized

Starter CB ClosedStarter coil not energized

PLU

G O

NTO

MC

CV

ERTI

CA

L B

US

TO M

OTO

R

M

OL

TO M

OTO

R

STA

RTE

R

STOP START

M

M

Main CB ClosedMCC Bus Energized

Starter CB ClosedMomentary Start PB depressed

Starter Coil energizedMotor Starts

PLU

G O

NTO

MC

CV

ERTI

CA

L B

US

TO M

OTO

R

M

OL

TO M

OTO

R

STA

RTE

R

STOPSTART

M

M

Main CB ClosedMCC Bus Energized

Starter CB ClosedSeal in Contact closes

Momentary Start PB releasedStarter Coil energized

Motor Runs

PLU

G O

NTO

MC

CV

ERTI

CA

L B

US

TO M

OTO

R

M

OL

TO M

OTO

R

STA

RTE

R

STOP

START

M

M

Main CB ClosedMCC Bus Energized

Starter CB ClosedStop Pushbutton depressedStarter Coil De-energiaed

Motor Stops

UnitsCommon MCC Units

-Combination Motor Starters-Fusible & CB type Feeders

-Panelboards-Distribution Transformers

-PLC’s-Metering

-Hydro Metering Compartment-Transfer Switches

-Clipper TVSS units

Motor Starters

Motor Starter units are CombinationStarters, consisting of a Starter and a

disconnect device, either a CircuitBreaker (HMCP or Thermal Mag)

or Fusible Switch

Freedom Starters

Size 1 to 6 EEMAC rated,or optional IEC starters,c/w adjustable bimetallic

overload relay

Compact 6” size 1 (IEC size F) and18” Size 3 & 4 (CB type) are available

Advantage Starters

Size 1 to 6 EEMAC Starter c/wElectronic Overload Relay

Various control, metering & groundfault modules are available as well as

PONI communications modules

Compact 6” size 1-2 and 18” Size 3-4(CB type) are available

6” Compact Starters

-Provides space savings, 12 unitsin a Front mounted Section & 23

in a Back to Back-Available with Freedom NEMA,

Freedom IEC or Advantage-HMCP or Fusible Switch

-Up to 25 HP in someconfigurations

Optional Units

Developed based on feedbackfrom various MCC users

-Slider operator mounted on RHside (mandatory in many

industries for safety)-Rugged Industrially rated KSwitch with visible contact

blades-Full accessibility to Power

Fuses

SV9000 Drives

Currently available in MCC’s upto 250 HP at 690Volts, withlarger sizes in development.

Simple programming with astandard or graphic keypad or

through a PC50 HP VFD’s

mounted two high inan MCC

IT Solid State Starter

Intelligent Technology (IT), theindustries most compact MCC

Solid State Starter design,requiring 30-63% less space

Up to 900 HP at 690V

Compact, easy to program andadvanced functionality

125 HP IT Starter in18” high MCC unit

Vacuum Contactors

Available in 135, 270 & 540Amp ratings.

Used in conjunction with C306Freedom Overload in MCC’s

Provides long service life andlow maintenance requirements

FeedersThermal Magnetic CB type Feeders from

HFD to RD Frame

Available in 6” compact and Dualconfigurations (maximum 150A)

Fusible Feeders using K-Switch, up to 1200Amps

Available in 6” compact (up to 60A) andDual (up to 100A) configurations

Dual MountedCB typeFeeder

PanelboardsPow-R-Line panelboards,

up to 42 Circuitsthru 600 Volts

Distribution TransformersSingle Phase up to 50 KVAThree Phase up to 45 KVA

TVSS

Clipper TransientVoltage SurgeSuppression

(TVSS)

Surge ratings100kA to 500kA

PLC’s

Wide rangingexperience in

mounting & wiringCutler Hammer PLC’s

as well as allcompetitive PLC’s

OEM

Basic Class 1 Type ASections & Units supplied to

OEM’s c/w-Blank panel (with or without Circuit

Breaker & operating mechanism-Devices (PLC, VFD’s, etc) mounted

& wired by the OEM-Special heights available

Digital Metering

Cutler Hammer PowerManagement Products

-IQ Analyser-IQ DP-4000-IQ Generator

-IQ Data-IQ 200

IQ DP-4130Digital Meter

Metering

Standard AnalogueMeters

Service EntranceSections c/w Utility

MeteringCompartments

Transfer Switch

Designed to control Emergency &Standby Power Systems

Available as type A (not intended toprovide short circuit & overloadprotection) or type B (c/w shortcircuit & overload protection)

Available up to 1200 Amp in MCC’s

MCC unit features

OperatingMechanism

DevicePanel

Bus Stabs

GroundingClip

TerminalBlock

CircuitBreaker

Contactor&

Overload

PivotTube

UnitLatch

Operating MechanismGrey Toggle Slider

MCC unit features

-Indicates position of the Disconnect

Interlocked with door so that:-When ‘ON’ door cannot open and

unit cannot be withdrawn-When door is open, operator is held

in ‘OFF’-Unit cannot be withdrawn unless in

‘OFF’ position-A Defeater mechanism is provided

for Authorized personnel

-Padlockable in ‘OFF’ position

Unit ground clipGrounds unit to structure

prior to engaging theMCC bus

MCC unit featuresBus Stabs

-Plugs units onto theVertical bus up to 400A-Fully shrouded, floating

stab fingers-Tin plated (silver

optional) copper/steelalloy stab

MCC unit features

Unit Device PanelMounted on MCC unit

Hinges down for unit access

Holds up to six devices:-30mm Pilot Devices

(Lights, PB’s Selector Switches)-Mini Meters

(Ammeter, Voltmeters, ETM)

MCC unit features

Unit Latch locks unit in position

Latches & locks in 3 positions:-Fully engaged

-Test or detent position-Withdrawn

Door Latch

Heavy duty 1/4 turn latchprovides positive door closureand latch position indication

Unit Wiring# 16 TEW control wire as standard

# 14 and other wire types also available

Sleeve type or Heatshrink wiretags

7 Point non pull-apart Terminal Block is standard(mounted on RH unit side)

7 Point pull-apart TB also available(mounted on RH unit side)

Other TB’s are also available(mounted on elevated channel)

Unit WiringType A - No terminal blocks

Type B - Control TB’s in Starter unitsType C - Control TB’s in Starter units which are wired

to master control TB’s at the top or bottom of eachMCC Section

Class I - No interwiring between unitsClass II - complete control system including controldrawings showing remote devices and/or interwiring

between units.

Unit WiringST

AR

TER

Class IType A

Fieldwiringdirectly

ontoStarter

STA

RTE

R

Class IType B

Fieldwiringonto

controlTB’s,which

arefactorywired to

theStarter

STA

RTE

R

Class IType C

Fieldwiringonto

masterTB’s (attop or

bottom)which

arewired toTB’s inStarterUnit

Unit Wiring

STA

RTE

RST

AR

TER

Class II factorywiring

between two ormore units in

the MCC

Unit Wiring

11A

AUTO

HAND

OFF2

3M

TRFUX1

H1

120VX2

600V

OL

X2

STOPREMOTE

PLC

FIREALARM

Class I I wiring diagramshowing remote devices

DeviceNet MCC

DeviceNet is an open communicationnetwork that connects intelligent control

devices

DeviceNet is built around a published, openstandard

Specification controlled by ODVA

DeviceNet MCC

DeviceNet MCC’s

-Reduces total installedcosts

-Provides advanceddiagnostics

-Reduces or eliminatesdowntime

DeviceNet MCC

Shipping split on DeviceNet MCC

Shipping split on standard MCC withinterwiring to a PLC

PANELMATE

WPONIDNA

WPONIDNAWPONIDNA WPONIDNA

WPONIDNA

WPONIDNA

24VDC POWERSUPPLY

MAINCB FEEDER

FVRSize 1

ITSolidState

FVNRSize 4

FVNRSize 2

FVNRSize 1

SV9000VFD

DeviceNet MCCConceptual View

Terminating Resistor

Trunk Cable (thick)

Tee Connector

Crop Cable (thin)