Power Xpert CX - Power distribution switchgear

IEC Low Voltage Power Distribution Center and Motor Control Center

Power Xpert CX
Flexible switchgear solutions
maximizing Safety & Uptime

Energizing a world
that demands more.

Discover todays Eaton.

Powering business worldwide
As a global diversified power management company,
we help customers worldwide manage the power
needed for buildings, aircraft, trucks, cars, machinery
and businesses.
Eatons innovative technologies help customers manage
electrical, hydraulic and mechanical power more reliably,
efficiently, safely and sustainably.

Switchgear Technology
is in our DNA

Eatons knowledge and understanding of industries,

applications, technology, and products enables us to offer
customers safe, reliable, and high performance solutions.
We have been at the forefront of the development and
creation of both Low and Medium Voltage Switchgear
technologies. This experience drives everything we do.

Eatons Low Voltage Systems meet the needs of any

installation
Eaton's Low Voltage Systems are designed to be as space and
energy efficient as possible while maintaining easy access for
installation, operation and maintenance. Low Voltage Systems
from Eaton are highly standardised systems supported by easy
configurations and quoting facilities with fast deliveries.
Eatons comprehensive low voltage system product portfolio has
been specifically designed to meet the needs of all types of
installations. The extensive portfolio includes: Power Supply and
Control Assemblies, Package Substations, Main and Sub-Main
Switchboards, Busbar Trunking, Motor Control Centres, Power
Factor Correction, and specially Engineered Assemblies.
As might be expected from such a comprehensive portfolio,
Eatons low voltage power distribution and control systems have
been used in many commercial and industrial applications, such as:
Water and Wastewater Treatment, Pharmaceutical industries,
Industrial facilities, Food & Beverage, Infrastructure projects,
Minerals, Metal Processing and Commercial applications such as:
Shops, Schools, Hospitals, Warehouses, Hotels, Prisons, Data
Centers, and Sport Stadiums.

Reliable, safe and standardised design

Eatons range of low voltage systems not only provide you with
optimum power distribution and motor control functionality, they
meet your most demanding requirements for safety and flexibility.
When it comes to safety, Eatons low voltage systems offer the
highest level of protection.
It is Eatons policy that all products are subjected to rigorous
testing and verification programs by, or under the supervision of,
internationally recognised and respected third party organisations
including: DEKRA (Formerly KEMA) and ASTA. In addition to third
party performance and quality verification many Eaton low voltage
systems hold specialist approvals from: DNV, Lloyds, UL and
KEMA.

CX A flexible solution for Low Voltage Power Distribution

The Power Xpert CX is Eaton's latest IEC low voltage power
assembly up to 5500 A. The system provides reliable
power distribution and motor control functionality for all
commercial and industrial applications.
The innovative design combined
with Eaton's expertise in the
area of low voltage applications
delivers a platform that is at the
heart of any power distribution
and motor control application.
CX is a flexible system which
maximizes safety and uptime.
CX offers maximum flexibility
with multiple possibilities for
fixed, plug-in, removable or fully
withdrawable sections, with
accessibility for front and/or rear
access. Eaton innovations
maximize uptime by preventing
unscheduled process interruptions and minimizing downtime.
Replacing devices can be
accomplished within seconds or
depending on the configuration
a few minutes, even under live
conditions. CX provides the
maximum level of protection for
personnel and equipment.
CX is verified by testing
according to IEC EN 61439-2
guaranteeing maximum
reliability. Moreover, the system
has been designed and tested
in accordance with IEC/TR
61641: the guide for testing
under conditions of arcing due
to internal fault. Tests were
performed with regards to the
criteria for personal and
assembly protection under
arcing conditions.
Power Xpert CX Power section with four ACB's,
in IP42 configuration.

Eaton has an enviable reputation

for safe, reliable Low Voltage

Systems with product families

like Capitole, Tabula, Gemini,
A300, xEnergy, MEMForm and
Modan.
The CX comes from more than
a century of experience in the
design and manufacturing of
Low Voltage systems. This
experience and expertise came
together in the development of
this latest generation of Power
Distribution Centers: CX. To
provide a fully integrated and
tested solution, Eaton has used
their state of the art switching
and distribution components
within the CX platform. Eaton's
reputation in the industry is built
on the legacy of brands like
Cooper, Cutler-Hammer,
Bussmann, Crouse-Hinds,
Westinghouse, Holec, MEM
and Moeller.
CX is manufactured in Eaton
facilities all across the world.
With the local application
knowledge backed up with a
multinational diversified
industrial organisation and
experience, Eaton can offer a
comprehensive service tailored
to customer requirements,
ranging from consultancy,
engineering to total project
management.
CX offers a state of the art
solution for Power Distribution
and Motor Control in a single
low voltage platform.

Complete range up to 5500 A

Power Xpert CX is a complete range for power distribution and
motor control up to 5500 A. In combination with Eaton's medium
voltage switchgear, UPS (Uninterruptible Power Supplies), Busbar
Trunking, Panelboards, Distribution Boards, project management and
service capabilities, CX is part of any complete turn-key solution for
all power distribution and control applications.
Data centers

Process industry
4

Hospitals

Water treatment plants

Infrastructure

Features and Benefits

Power Xpert CX is a broad platform with multiple possibilities.
Reliable in Operation

Safe in Operation

System Flexibility

Total Cost of Ownership

Complete product design

third party certified in
accordance with IEC 61439-2
(Verification by testing).

Plug-in and Withdrawable

compartments can be
modified without the need
for complete system
shutdown.

Modular design.

Automatic door interlocking

of withdrawable and
removable feeders to
prevent access to devices
when the disconnect switch
is in the ON position.

Variable widths for

cableways.

Up to 24 feeders (160 A
frame MCCB or FCS) or 25
motor starters (15 kW DOL)
can be installed in one single
section to reduce footprint
and achieve maximum
density.

Designed and tested

according to IEC / TR 61641
criteria 1-7.
Quality assurance in
accordance with DIN EN
9001 / ISO 9001.
Routine tested in ISO
certified manufacturing
locations.
External degree of protection
is third party tested for IP31,
IP42 and IP55 according to
the IEC 60529.
Internal protection for open
compartments is at
minimum IP2X/IPXXB.
Full internal separation of all
functional units designed in
accordance with Forms 2b,
3b, 4a and 4b (up to BS-EN
forms of separation types 6
and 7).

CX assemblies are built in

Eaton factories with Eaton
devices with a proven track
record.
Padlock facilities available
for all operating and interlock
mechanisms.
3-point-lock system is
available on all cableway
doors to ensure maximum
safety.

Small footprint.
Fixed, removable and
withdrawable units.

Easy to upgrade and extend

the switchboard.
Suitable for universal use as
the dimensions are in
accordance with the main
industrial standards (DIN
VDE, CEI, UNE, NF and
BSEN).
Cable connection from top
and/or bottom (front and
rear) optimised for Eaton's
IEC 61439-6 compliant
Power Xpert Busbar
Trunking System.

Possibility of 4 Air Circuit

Breakers in a single 800 mm
wide section.
Compartments or devices
can be quickly and easily
changed to ensure maximum
uptime for the business
processes.
The use of high-grade
materials and components,
reduces maintenance to a
minimum.

Corner cubicles for flexible

line-ups optimising spaceusage in the switch room.
Multiple main busbar
positions allowing front and
rear access, multiple stacked
ACBs and footprint
reduction.

Power Xpert CX is able to combine

multiple functionalities into one configuration.

Basic design
Power Xpert CX is
modular in construction.
It is a self-supporting
sheetsteel structure,
consisting of profiles and
sheet-steel side walls and
covers.

The CX panels have three major

sections:
1. The busbar section
The fully segregated main
busbar chamber can be
located in the back (top/
bottom position) of the
structure or available as a
top configuration (top/
middle/ bottom position).

2. The cabling section

Located in a separate fully
segregated cable chamber at
the rear or besides the
equipment section.

The system is designed for

'front cable access' for
applications where the panels
must be located adjacent to a
rear wall.

3. The equipment section

Located at the front where
the functional units are
fitted.

Alternatively the system can be

arranged for rear access, a
single line of structures giving
all around access to panels for
operation and cabling.
Arrangements for 'back to back'
configurations are possible.

Busbar Back configuration

Busbar Top configuration

5
1
2

3
4

2
7
8

Distribution Panel (example)

Distribution Panel (example)

Busbar Back Design

Busbar Top Design

1. Outgoing Cable Connection Compartment

1. Main Busbars

2. Main Incoming Feeder Unit

2. Incoming or Outgoing Feeder Unit

3. Flushed key lockable door handles

3. Outgoing Feeder

4. Mounting Plinth

4. Main Busbars

5. High Density Outgoing Feeder

5. Riser panel

6. Outgoing Cable Connection Compartment

6. Mounting Plinth

7. Outgoing Feeder
8. Empty Compartment
9. Ventilation

Main Busbar System

The main busbar system is
maintenance free and fully
separated from the equipment
and cable compartments.
The busbars are rated up to
5500 A - 100 kA / 1 s.

The Power Xpert CX main

busbars are arranged in a
separate compartment to
ensure the right form of
separation and internal
degree of protection. All
main and distribution
busbars are maintenance
free. Two busbar designs
are available, Busbar Back
and Busbar Top.

On site extension of the main

busbar system can be easily
and quickly accomplished with
the appropriate busbar coupling
clamps; no drilling is required.

The material specification of

the busbars is Copper:
EN 13601-Cu-ETP-R250.

Main Busbar Systems

Busbar Type

Positions

Busbar Back (BBB)

Busbar Top (BBT)

Top / Bottom
Top / Middle / Bottom

Current
In
800 A - 5500 A
800 A - 4500 A

Frame rating
up to 3200 A
up to 4000 A
up to 5500 A
up to 4500 A

Depth
600 mm
800 mm
1000 mm
800 mm

Short circuit capacity

Icw (1s)
Icw (3s)
up to 100 kA up to 50 kA
up to 105 kA up to 66 kA

Ipk
up to 220 kA
up to 231 kA

Main Busbar Systems

Busbar Type
Busbar Back (BBB)
Busbar Back (BBB)
Busbar Back (BBB)
Busbar Top (BBT)

Busbar Back configuration (BBB)

Front view busbar section

Side view busbar section

PE
N
L1
L2
L3

Two positions:
top and/or bottom
L1
L2
L3
N
PE

Depth 600 mm
up to 3200 A

Depth 800 mm
up to 4000 A

Depth 1000 mm
up to 5500 A

Busbar Top configuration (BBT)

Front view busbar section

Side view busbar section

Feeder section
Depth 800 mm
up to 4500 A

Power sections with

two busbars
Depth 800 mm
up to 4500 A

Power sections with

three busbars
Depth 800 mm
up to 4500 A

Flexible Power Distribution Solutions

NZM2 circuit breaker with

removable neutral link.

NRX Air Circuit Breakers.

Plug-in adapter.

Power Sections

Fixed Outgoing Sections

Incoming, outgoing and bus coupling solutions

Power Distribution feeders with NZM circuit breakers

up to 630A

Air Circuit Breakers, Moulded Case Circuit Breakers and

Switch Disconnectors
Safety due to internal separation up to Form 4
Flexibility by choice of cable and busbar trunking
connection from the top or bottom

Internal separation ranging from Form 2b up to

Form 4b (type 6 and 7)
Toggle and rotary operation
Available with Plug-in adapter

Withdrawable compartment.

15 kW DOL Motor Starter.

Fused Combination Switch,
QSA 400A, Form 4a
compartment.

Removable Outgoing Sections

Busbar Back configuration only
Power Distribution feeders with removable NZM circuit
breakers and QSA Fused Combination Switches up to
630 A

Withdrawable Outgoing Sections

Power distribution feeders with NZM circuit breakers
up to 630 A
Motor starters up to 250 KW

Internal separation up to Form 4

Drawers can be replaced under live-line working

conditions ensuring minimum down times

Easy maintenance and reduced down times

Internal separation up to Form 4

Remote monitoring and control with Smart-Wire DT and
C440 based communicating solutions

Flexible by design
Modular design and small footprint
Power Xpert CX offers a
switchgear solution flexibly
tailored to the needs of
project demands. Whether
this requires front access or
rear access with a busbar at
the top or in the back, CX
has the answer. With the
increasing focus on cost
and space the CX provides
many features and many
possibilities to maximise
performance while
optimising footprint.
Examples are the quad stacked
Air Circuit Breaker sections or
the dual compartment high
density outgoing units with
either Moulded Case Circuit
Breakers or Fused Combination
Switches enabling up to 24
feeders (160 A frame MCCB or
FCS) or 25 motor starters
(15 kW) in a single cubicle.
Remote operation or plug-in
adapters for MCCBs will
dramatically increase the
functionality and flexibility with
little effort.
Distribution and motor
control
Distribution and Motor Control
units can be included in the
same panel. A MCCB feeder
unit and withdrawable motor
starter can be placed in the
same structure.
Different position of main
and distributions busbars
With the two main busbar
designs, Busbar Back and
Busbar Top, 5 busbar positions
are possible. Distribution
busbars are placed behind and
adjacent to the functional units.

Fused and breaker solutions

Power distribution applications
with Fused Combination
Switches and Moulded Case
Circuit Breakers are available
in CX.
CX is offering the best of two
worlds in component
integration for overcurrent and
short-circuit protection. Both
Breaker and Fused
technologies are key
competencies of Eaton.
Fused solutions offer high
breaking capacity and current
limiting properties and make
coordination and selectivity of
multiple switching devices
connected in series possible.
MCCBs offer ease in operation
like simple resetting and easy
adjustable settings. MCCBs
dont require spare parts and
several functions (other than
switching and protection) can
be combined in a single device:
earth-fault protection, remote
operation and communication.
Variable widths for cable
compartments

Suitable for cable and busbar

connections
CX is designed for flexible
customer connection methods:
whether cables or Eaton's
Power Xpert Busbar Trunking
Systems. Both the CX and the
Busbar Trunking Systems are
verified by testing according
the IEC 61439-2 and
IEC 61439-6.
Corner cubicles to allow for
flexible line-ups to suit the
switch room
Switch rooms come in many
dimensions and that is why the
CX is able to be manufactured
in various flexible shapes with
the help of corner cubicles. Lshape, U-shape or back-to-back
configurations are available to
fit the switch room lay-out.
Direct cable connection to
feeder units
For components above 630 A
the system allows direct cable
connection to feeder units for
the top and bottom feeder
compartments.

Add safety, measuring and

Power Factor Correction
equipment
Maximum flexibility in one
switchgear system.
Eaton's patented Arcflash
Reduction Maintenance
System
Zone Selective Interlocking
(ZSI)
Seismic qualifications
according IEC, IEEE and IBC
BreakerVisu Visualization
and Logging System
Mechanical interlocking for
restricted access
Automatic transfer switching
Arc proof assembly
according IEC/TR 61641
criteria 1 to 7
Plug-and-play metering
options
Surge Protection Devices
Power Factor Correction

Generous sized cableways are

available for top and bottom
cable entry. Depending on the
application the cable compartments for wiring range from
175 up to 600 mm wide.
Easy to upgrade and extend
the switchgear
The switchgear can be
extended at either end
whenever this is required. So
when the demands for the
switchgear changes it can be
upgraded and panels can be
added with minimal process
interruptions.

Power Xpert CX equipped

with Power Factor Correction.

CX Solutions (see page 8)

Power Sections

Fixed Outgoing

Removable Outgoing

Withdrawable Outgoing

Form of Separation
Operation
Busbar Top - positions
Busbar Back - positions
Cable Access

up to Form 4b
Toggle / Rotary
Top / Middle / Bottom
Top / Bottom
Front / Rear

up to Form 4b
Toggle / Rotary
Top
Top / Bottom
Front / Rear

up to Form 4b
Toggle / Rotary
Top / Bottom
Front

up to Form 4b
Toggle / Rotary
Top
Top / Bottom
Front / Rear

Reliable and Safe in Operation

sophy of the system. CX is
designed and tested to the
criteria for personnel
protection as described in
IEC/TR 61641. The CX
assemblies have been
tested with optional arc
mitigation features to
improve safety performance
under arcing conditions.
In addition to the stringent type
test requirements laid down in
the IEC 61439 standard, CX is
subjected to a full range of
routine tests and a thorough
quality control regime.

Standards and technology

As standards evolve, and clients demand higher levels
of reliability and safety, Eaton meets these market
requirements with the latest technology.
Whether it is meeting the
latest requirements of
IEC 61439 for low voltage
switchgear, personal safety
under arc fault conditions
according IEC/TR 61641,
addressing safety concerns
while working near equipment,
you can rely on Eatons 100
year heritage and leadership in
switchgear design.
When it comes to system and
process integrity, additional
safety and uptime improvement features are included in
the Power Xpert CX designs.
Full compliance and arc fault
third party certification
according to IEC / TR 61641
criteria 1-7 or the inclusion of
Eatons patented Arcflash
Reduction Maintenance

System feature will increase

the safety of your operating
and maintenance personnel.
Complete design certified in
accordance with IEC 61439-2.
Eaton's proven technologies
have been integrated in the
design and development of
the latest generation CX
switchgear in order to ensure
the complete system flexibility,
safety and uptime:
IEC 61439-1/2 verification
by test.
Components meet the
requirements of IEC 60947
and related series of specific
component standards.
Operator safety has been
central in the design philo-

Compartments for outgoing

units can be modified
without process interruption
The design of the plug-in,
removable and withdrawable
units offers optimum personnel
protection and rapid interchangeability of the functional
units without having to isolate
the entire system, in
compliance with appropriate
local regulations. This means
that module replacements and
additions to the system
requires minimum downtime.
This enables safe and
convenient modification and
exchange under energised
conditions.
Increased Robustness to
meet Seismic conditions
For increased robustness, the
CX is available in a seismic
compliant version to level AG5
of the IEC 60068-3-3 and
IEEE 344.

Quality assurance in
accordance with DIN EN 9001/
ISO9001 with routine tests
carried out in ISO 9001
certified Eaton manufacturing
locations
Various routine tests are carried
out during the production of
the system. To assure quality,
all processes are in accordance
with DIN EN 9001. This
means that at every stage of
manufacture and production,
the cubicles and the
components; circuit-breakers,
control components, current
transformers and logic
components are all inspected
and tested in accordance with
their own specific IEC standard.
When the entire installation
has been assembled, a
thorough visual inspection is
carried out, together with
mechanical, functional, and
electrical checks. As a
minimum the routine tests
required by IEC 61439 are
carried out on each panel.
Safety due to use of
standardised components
which have a proven track
record of distribution and
control
CX uses standard Eaton
components, offering a wide
range of distribution and motor
starter ranges and applications.
The experience and proven
track record of these
components like NRX, NZM,
QSA, PKZ, PKE and DIL make
CX the system you can rely on.

Power Xpert XP - Busbar Trunking Systems

The CX is designed and standardised to be used with Eatons Power Xpert XP busbar trunking program.
The sandwich-type design of
XP makes it suitable for a wide
variety of applications up to
6300 A. The Power Xpert XP
program ensures a significantly
reduced power loss compared
to using cables, saves energy
and reduces emissions.
The XP system is available in
ratings from 800 - 6300 A.
The XP low impedance range
has been newly tested to IEC
61439-6 and comes complete
with IP55 as standard with short
circuit capacities up to 100 kA.
Aluminium range from
800 - 4000 A
(tested to IEC 61439-6)
Copper range from
800 - 6300 A
(tested to IEC 61439-6)
10

XP busbars can be supplied in

varying bar configurations from
3 to 6 bars. The system can be
adapted to any building type
with the wide variation of
accessories available. An easily
assembled cassette type joint is
provided for 800 - 6300 A
ratings.
A wide variety of angles and
intersections are available,
tap-off outlets up to three per
3 meter length, and tap-off units
are simply plugged into position
a popular and well-proven
solution for industries where
flexibility and adaptability are
essential.

Flexibility and Safety - process changes under live conditions

Process changes, for
example the up rating of
motor power or exchanging
of compartments, may
require on-site modification
of motor starter circuits or
reconfiguration of
compartments. The CX
design is able to meet
these requirements under
live conditions.

In cubicles with a vertical

distribution busbar system,
screening plates provide
isolation from live parts allowing
for safe modification or
exchange under live conditions.
The distribution bars allow for
the connection of contacts
along its entire length thus
allowing for the modification
of outgoing compartment sizes
to be safely carried out under
live conditions.

Compartment separation plates

are secured at the front of the
cubicle. The separation plates
can be easily and quickly
removed and secured in a
different location to create a
new compartment layout and
size all safely under live
conditions.

Zone Selective Interlocking (ZSI)

Eaton Air Circuit Breakers
equipped with Zone
Selective Interlocking (ZSI)
will significantly reduce
incident energy levels.
With the ZSI technology an
unneeded shut down of a total
assembly is prevented in case
of short circuit. ZSI is the
controlling of the circuit
breakers to provide selectivity
with very short interruption
times for the breaker closest to
the fault. With ZSI integrated in
your assembly additional
communication between the
ACB trip units is established.
This enables breakers, in case
of a short circuit, to trip faster
than the trip unit settings which
will reduce the incident energy
levels dramatically.

Eaton ACB
ACB 1
tsd = 300 ms

Power supply influenced by

short circuit within the zone

ZSI

ZSI connection terminals

ZSI wiring and communication

Zone 1

ACB 2
tsd = 200 ms

ACB 3
tsd = 200 ms

ZSI

ZSI

Zone 2

ACB 4
tsd = 100 ms

Zone 3

ZSI

ACB 5
tsd = 100 ms

ZSI

Arcflash Reduction Maintenance System

Eaton Air Circuit Breakers equipped with Arcflash Reduction Maintenance System
Personnel safety is of paramount importance in todays
work environment. Of recent
concern is the potential for
serious injury due to exposure
to electrical arcs. There has
been significant research
performed and recent standards
have been written to address
the risks of arc flash hazards for
personnel working on or near
energized electrical equipment.
An Eaton air circuit breaker
equipped with Arcflash
Reduction Maintenance
System can improve safety by
providing a simple and reliable
method to reduce fault clearing
time.

Benefits of Arcflash Reduction

Maintenance System are:
Increased personnel safety
by limiting the available arc
flash energy.
Simple to operate.
Enabled with the circuit
breaker door closed by a
door mounted lockable
switch or through
communication to the
breakers trip unit.
Enabled only for the time
required to perform the work.
Preserves overcurrent
coordination under normal
conditions.

Equipment downstream of a circuit

breaker equipped with an Arcflash
Reduction Maintenance System
can have a significantly lower
incident energy level, thus protecting
operators or maintenance.

11

Maximise the Uptime of your distribution system

Zone Selective Interlocking
(ZSI)

Power System Automation

(PSA)

Preventing unneeded
shutdown in case of short
circuit (see page 11).

With Eatons Power System

Automation solutions we
maximise the uptime and
resilience of a power
distribution installation. Power
System Automation is the act
of automatically controlling the
power system via
Instrumentation and Control
devices. The domain of Power
System Automation can be
split in two typical functions:

Integrated metering
solutions
Integrated metering solutions
for real-time monitoring,
overload pre-warning and
breaker health indication.
Automatic Transfer
Switching systems (ATS)

Multiple critical business

services are running within
buildings, data centers or
industrial premises. These
services are vulnerable to
power problems, both in terms
of power availability and quality.
To secure maximum uptime

CX is offering a wide range of

solutions:
Multiple interlocking
possibilities
Restricted access to avoid
human mistakes.

Within CX the integration of

Automatic Transfer Switching
systems is playing an important
role when maximising the
uptime of an installation. The
solutions we offer vary from
synchronised switching
between two power sources
with Eatons ATS-PWR up to
controlling multiple transformer
and generator feeds, switching
numerous breakers with the
Otonet system.

Power System Control and

Power Monitoring. Power
System Control covers logic
and relay control schemes
with integrated
functionalities like Automatic
Source Transfer, generator
test, load shedding, load
sharing and peak shaving
and visualisation.
Power Monitoring is the
collection of accurate data,
providing trend information,
including alarm and event
functions.

BreakerVisu - Monitoring
Monitoring the energy
consumption is one of the key
elements for asset management. BreakerVisu supports
this task by acting as an
integrated visualisation and
logging system within
Power Xpert CX switchgear.
The BreakerVisu system
collects data from devices like
Air Circuit Breakers, Moulded
Case Circuit Breakers and Fused
Combination Switches and
displays the data on a panel
mounted HMI. The operating
data from the connected
devices is communicated to the
BreakerVisu panel via Modbus
RTU or Eaton's

innovative SmartWire DT
communication system. The
information can be obtained onsite through the BreakerVisu
HMI or remotely when
connected to your network or
control system.
BreakerVisu increases the
uptime capabilities of the
power distribution system by
not only logging and displaying
energy consumption but also
by providing predictive
maintenance information to
reduce unexpected outages.
BreakerVisu provides prewarnings of overload before
breakers will trip so that

SmartWire DT - Connectivity
Eatons SmartWire-DT
communication system is used
in CX to record information from
motor starters, soft starters and
variable frequency drives.
The retrieved information is
transferred via standard fieldbus
protocols to the higher-level
PLC. In a power distribution
assembly SmartWire-DT collects
all relevant breaker information

12

in BreakerVisu. Thanks to the

use of intelligent SmartWire-DT
switchgear, this not only
consists of digital signals for
switching or monitoring of
positions or overload
information but also analogue
values such as the actual
current or the condition of a
trip unit can be determined
and evaluated.

preventive maintenance can be

performed before failure. With
the new NZM-MC Moulded
Case Circuit Breakers the
unique feature BreakerHealth
provides up-to-date status of
the longevity of the installed
base to BreakerVisu.
BreakerHealth provides Contact
Wear Information and is
registering mechanical and
electrical operations providing
lifespan information and
warning messages when the
lifespan is low to support
maintenance and budget
requirements for replacement
of breakers.

Form of Internal Separation

Power Xpert CX panels are
designed around three different
areas:
1. The main busbar and
distribution busbar section
segregated from the
equipment section.
2. The cabling section located
in a separate fully segregated
cable chamber for feeding
cables to the functional
sections and/or housing
control and power cable
terminations, depending on
the form of separation.
3. The equipment section at
the front where the
functional units are fitted.

IEC 61439-2 defines the

various forms of internal
separation. The form of internal
separation determines how
busbars, functional units and
terminals are separated from
each other. CX is designed to
provide separation in Form 2b,
3b, 4a and 4b solutions.
Form 3b, 4a and 4b are defined
as: the separation of the
busbars from each functional
unit and the separation of each
functional unit from each other.

The difference between Form

4a and Form 3b/4b is the
position of the terminals to the
functional units. In a Form 4a

solution these terminals are

located in the same compartment as the functional unit.
The difference between Form
3b and Form 4b is based on
how the terminals for outgoing
conductors are separated from
each other.

Form 4b solution is defined as:

the separation of the terminals
for external conductors
associated with a functional
unit from those of any other
functional unit and the busbars.
i.e individual separation of each
functional units outgoing
terminals from each other.

Form 3b solution is defined as:

the separation of terminals for
external conductors from the
functional units, but not from
those of other functional units,
i.e. a common cable chamber
where all outgoing terminals
are grouped together. Internal
separation in accordance with
IEC 61439-2.

Internal separation in accordance with IEC 61439-2

Form 1

Form 2b

Form 3a

Form 3b

Form 4a*

Form 4b*

Functional units are separated

from other functional units

Terminals are external

to functional units

Terminations to functional units

are separated from each other

Busbars (main + distribution) are

separated from functional units

Terminals are separated from

the busbars

Power Xpert CX supported

forms of separation

* BS-EN 61439 Compliance for Form 4a type 2 and Form 4b type 6 and 7. Form 4b type 6 is available as "compartmentalised" or "group-mounted".

Form 4a with MCCB's on plug-in adapters and a

removable neutral link.

Form 4a with type QSA Fused Combination Switches.

13

Main components for distribution and MCC

Power Xpert CX uses only the best components in
the design of the structure and in the functional units.
Eaton power switching and protection components are
among the best in the world. A system is only as
strong as its weakest link and so the quality of the
individual components used determines the
performance and quality of the system as a whole.

Eaton delivers CX with Eaton's

Air Circuit Breaker (ACB),
Moulded Case Circuit Breaker
(MCCB) and Fused Combination
Switch functionality.
Understanding the interaction
of each individual component
and how they operate within a
complete system is essential to
delivering a fully type tested,

reliable and efficient power

distribution and motor control
application. All the critical
components used in CX are
Eaton components. Ranging
from the Main Incoming
Feeders to the pushbuttons
and indication lights all the
components come from Eaton.
Eaton components are:

Air Circuit Breakers

Eaton type Magnum and NRX Air Circuit Breakers
Tested according the
IEC 60947-2

Complete with extensive

range of accessories

Ranging up to
6300 A - 100 kA / 1 s

Zone Selective Interlocking

Comprehensive and
innovative electronic Digitrip
trip unit range (LSIG)

Arcflash Reduction
Maintenance System

Fixed and withdrawable

mounting

Moulded Case Circuit Breakers and Motor Circuit Protectors

Eaton type NZM Moulded
Case Circuit Breakers
Only 4 frame sizes cover up
to 1600 A - 100 kA
Up to 690 V - 80 kA
Innovative switching
technology with a double
break contact system speeds
up the switching process
Universal and modular
accessories
Eaton BreakerHealth
diagnostics available for
accurate lifecycle status
(wear indication)
NZM plug-in adapter

Eaton type PKZ and PKE

Motor Protective Circuit
Breakers
Only 2 variants for PKZ to
cover the entire range from
0.1 to 65 A
PKE enables a wide range
of electronically-controlled
settings
Common range of accessories
for PKE and PKZ including
Smart-Wire DT
No need for additional current
limiters

Plug-in adapter available up to

500 A for flexible and safe
installation

Contactors and Fused Combination Switches

Eaton type DILM Contactors
Tested according IEC 60947-2
for a complete range of motor
starter types like Direct-on-line
(DOL), Forward-Reverse and
Star Delta
Type 2 co-ordination motor
starter combination with PKZ,
PKE and NZM circuit breakers

Eaton type QSA Fused

Combination Switches
Switches will accommodate
up to 630 A DIN fuses and up
to 800 A BS fuses
Only 3 frame sizes covering
the entire range
Double break per phase
Mounted on smart and
removable adapter to increase
flexibility, safety and optimal
performances during
operation and maintenance
With patented snap-on CT
accommodation

14

Soft Starters and Variable Frequency Drives

Eaton type DS7 Soft Starters
Soft starting: the modern
alternative to star-delta starters
Designed for applications such
as pumps, fans and small
conveyors, the compact DS7
is ideal

Eaton type PowerXL

Variable Frequency
Drives
DC1 Compact Drive for fans,
pumps, and conveyor systems
(ratings from 0.37 to 11 kW)
DA1 Advanced Machinery
Drive (ratings from 0.75 to
250 kW)

For kW ratings up to 110 kW

Smart-Wire DT provides direct
access to all Soft Starter
parameters

Compliant with IE2, IE3, and

future IE4 energy efficiency
standards
Smart-Wire DT provides direct
access to all Soft Starter
parameters

= Personal safety
= SmartWire DT
= Energy efficiency
= Maintenance friendly

M2L Integrated Power Distribution System

Compact, integrated solution for medium voltage connection, transformer and low voltage distribution
Eaton has power distribution
products from medium voltage
down to low voltage level.
The M2L electrical distribution
system integrates these
products into a complete
factory build solution, which
combines the medium voltage

connection and the low voltage

distribution, including
transformer. A turnkey solution
which offers significant
benefits, in terms of
investment and usage, for
installers and end customers:

Minimise expensive low

voltage cables
Limit power losses in the
cables
Limit assembly costs
Save on building costs for
the technical room
Very short assembly time
Factory tested

M2L-configuration with 24 kV Xiria medium voltage switchgear, 1600 kVA dry-type transformer and Power Xpert CX.

15

Global Customer Experience

Power Xpert CX is Eatons global platform
Enables customers to standardise globally on their LV system solution
CX is offered globally by our
local plants, providing local
access to an internationally
recognised and standardised
design CX.

Using Eatons standard configuration tools to reduce leadtime and costs of engineering
will help drive the total project
time and budget down.

We can offer customers the

platform CX in the same
standards worldwide.

Personal contact plays a crucial

role between people despite
automated logistics and global
availability. This direct
connection with customers,
their requirements and
challenges, is indispensable.

CX is part of Eatons global

offer for power distribution and
motor control switchgear. The
production takes place in
multiple plants all over the
world. Customers can benefit
from local presence and global
availability.
A global product does not
mean lack of focus on local
requirements. Items like local
standards, wiring practices,
customer contact and utility
requirements are fulfilled while
maintaining the advantages of
a worldwide manufacturer.

Power Xpert CX

Power Distribution
with focus on footprint
reduction to limit the
need for increased
non-revenue generating
floor space.

16

That is why Eaton offers

efficient service at a local level
throughout the world.
Whether it is the main incomer,
the contactor or the pushbutton
in the compartments, everything comes from the same
source: Eaton. That is why CX
is designed to meet the best
standards in product technology
with local service and support.

Customers of Eaton benefit

from a worldwide network of excellence

17

Power Breaker (ACB and MCCB) sections

Busbar Back configurations

Busbar Type
Stacking Configuration
Busbar Back position
Devices
Frame rating
NZM3
up to 630 A
NZM4
up to 1600 A
NRX NF
up to 1600 A
NRX RF
up to 4000 A
Magnum
up to 6300 A
Standard dimensions (mm)
Height
Width
Depth

BBB

BBB

BBB

Single

Side-by-Side

Stacked

Top and/or Bottom

Top and/or Bottom

Top and/or Bottom

4
4
4
4
4

4
4
4

2000
425/600/800/1000/1100/1200/1350
600 - 1000

2000
600/800/1000
600 - 1000

4
4

2000
425/600/800
600 - 1000

Busbar Top configurations

Busbar Type
Stacking Configuration
Busbar Top position
Devices
Frame rating
NRX NF
up to 1600 A
NRX RF
up to 4000 A
Standard dimensions (mm)
Height
Width
Depth

18

BBT

BBT

BBT

Single

Side-by-Side (stacked)

Stacked

Top and/or Bottom

Middle and/or Top/Bottom

Middle and/or Top/Bottom

4
4

4
4

2000
425/600/800/1000/1100/1200/1350
800

2000
600/800
800

2000
425/600/800
800

Electrical Data
System

Power Xpert CX

Rated operational voltage

Rated frequency

380 - 690 Vac

50 / 60 Hz

Main busbar data

Rated insulation voltage
Rated impulse withstand voltage
Rated current
Rated short-time withstand current
Rated peak withstand current

1000 Vac
up to 12 kV
800 - 5500 A
50 - 100 kA / 1 s and 50 - 66 kA / 3 s
220 kA

Vertical distribution busbar data

Rated insulation voltage
Rated impulse withstand voltage
Application
Rated current
Rated short-time withstand current
Rated peak withstand current

1000 Vac
up to 12 kV
Fixed / Removable / Withdrawable
800 - 2500 A
35 - 80 / kA 1 s
176 kA

Enclosure data
Degree of protection
Form of separation

IP31 / IP42 / IP55

Form 2b / Form 3b / Form 4a & 4b
Form 4a type 2 / Form 4b type 6 & 7
Top and / or bottom
Front or rear
RAL 7035

Entry of cables
Access
Standard Colour

General dimensions (mm)

Busbar Back configuration

Busbar Top configuration

2000 mm

2000 mm

100/
200 mm

425 1350 mm

175 600 mm

425 700 mm

175 600 mm

600 -1000 mm

100/
200 mm

425 - 1350 mm

300 mm

600 mm

800 mm

Standards
Power Xpert CX complies with the following international standards
IEC 61439-1
General rules
IEC 61439-2
Power switchgear and controlgear assemblies
IEC/TR 61641
Enclosed low-voltage switchgear and controlgear assemblies - Guide for testing under
conditions of arcing due to internal fault
IEC 60529
Degrees of protection (IP Code)
IEC 60068-3-3
Environmental testing - Part 3: Guidance. Seismic test methods for equipment
IEEE 344
IEEE Recommended Practice for Seismic Qualification of Class 1E Equipment for
Nuclear Power Generating Stations
IEEE 693
IEEE Recommended Practice for Seismic Design of Substations
IBC
International Building Code
19

for harsh and hazardous

environments; and engineering
services. Eaton is positioned
through its global solutions to
answer todays most critical
electrical power management
challenges.

Eatons electrical business is

a global leader with expertise
in power distribution and
circuit protection; backup
power protection; control
and automation; lighting and
security; structural solutions
and wiring devices; solutions

Eaton low voltage products in the energy chain

Mining

Power plants
2

Offshore and
marine 3 4

Green energy
1

Infrastructure
1

Commercial buildings
1

Main
stations
Heavy industry
2

Distribution
substations

Shops and
offices
1

Transformer
stations
Residential
applications

Power generation

Solutions and
Services

Process
industry
2

Industry
1

Green energy
1

1 Capitole 20

2 Power Xpert CX

3 Capitole 40

4 Power Xpert CXH

Eaton Industries (Netherlands) B.V.

P.O. Box 23
7550 AA Hengelo
The Netherlands

Eaton FZE (Dubai Branch)

P.O Box 261768
Techno Park, Dubai
United Arab Emirates

Tel.: +31 (0)74 - 246 40 10

Fax: +31 (0)74 - 246 40 25
info.electric@eaton.com
www.eaton.eu

Tel.: +971 4 806 6100

Fax: +971 4 889 4813
EEME-Sales@Eaton.com
www.eaton.ae

Eaton Electric Limited

Reddings Lane
Birmingham B11 3EZ
United Kingdom
Customer Support Centre
Tel.: +44 (0)8700 545 333
Fax: +44 (0)8700 540 333
ukcommorders@eaton.com
www.eaton.com/uk

5 Busbar trunking

Eaton Electric (South Africa) (Pty) Ltd

Osborn Road,
Wadeville,1428 Gauteng,
South Africa
Tel.: +27 (0) 11 824-7400
Fax: +27 (0) 86 861 9302
InfoSouthAfrica@eaton.com

2014 Eaton Corporation

All rights reserved.
Form No. BR043003EN / 6095821
April 2014