XJ-L Selection &
Application Guide
BUSWAY SYSTEMS
s
Global network of innovation
2
Overview
XJ-L Busway is well known for
its outstanding performance,
providing convenient, costeffective power distribution for
high-tech environments,
computer centers, laboratories,
and other applications
requiring consistent, quality
power distribution. Key XJ-L
design features include
optional isolated ground and
ampere ratings of 100A and
200A. For maximum
availability, XJ-L Busway is
maintained as a stock product
to meet your quick ship
requirements.
As a result, XJ-L Busway is an intelligent
choice for contractors and users
concerned with designing superior
electrical distribution systems. The
compact design is ideal for working areas
in computer manufacturing, laboratory
or test facilities, schools, hospitals, and
machine shops.
With XJ-L Busway, you get an exclusive,
optional isolated ground design that
ensures clean power. Unlike bonded
ground designs that may convey surges
from one electrical device to another, the
XJ-L optional isolated ground system is
well suited for sensitive high-tech
computer intensive environments. And,
the ground bar is the same size as the
phase bars, with the same ampere rating.
Installation is easy — joining one XJ-L
busway section to another is as simple as
matching ends and snapping them
together. Bus bars are held securely in
place by spring pressure clips located in
the joint insulator. The joint is secured
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when the external housing plate is
attached with captive screws.
Thanks to built-in flexibility and a low
initial cost, you also benefit from future
savings when you need new equipment.
Time to add on busway for new or
expanded facilities? The XJ-L Busway
you installed years ago matches the XJ-L
Busway you specify today. And, years
from now, the new busway sections,
components or system-compatible bus
plugs will still fit.
3
Why Choose XJ-L?
DEPENDABILITY
COST
AVAILABILITY
First introduced in 1960 and having
well over one million feet in service,
XJ-L busway has a proven track record
of trouble-free power distribution.
The joints are easy to install and
maintenance free. The copper bus
bars and steel housings are designed
to provide years of dependable service.
Overall, XJ-L offers a more cost
effective power distribution system
than the typical cable and conduit
installation. Because XJ-L is lightweight
and easy to handle, installation is less
expensive, faster and cleaner. In
addition, XJ-L busway can easily be
reconfigured to accommodate changes
in load requirements when needed.
XJ-L busway and plugs are stocked to
meet your quick-ship requirements.
FLEXIBILITY
XJ-L offers the flexibility of a 3 or 4
wire system, isolated or internal
ground and 200% Neutral capacity
where isolated ground is not required.
Busway sections and additional plugs
can be easily added to meet changing
demands. Each 10' section features
twelve plug-in openings for easy
accessibility.
Different loads can be powered by
a single multi-receptacle plug. These
plugs can be configured to provide
specific load switching and protection.
Application specific hangers are
available to accommodate installation
requirements.
EQUIPMENT PROTECTION
Critical equipment is protected via fuse or
circuit breaker plugs. Due to their
proximity, the plugs provide a localized
method of protection and disconnection.
SPACE
Space in critical power / data center
facilities is at a premium. XJ-L Busway
requires less space than conventional
power distribution methods such as
cable and conduit.
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Once you factor in all the advantages,
XJ-L is clearly the best choice for
reliable, flexible, and economical
power distribution for data center, light
industrial and high tech applications.
4
Specification Information
XJ-L busway is available in 100A
and 200A ratings making it the right
choice for light industrial and
commercial applications where
low initial startup and maintenance
costs are prerequisites. XJ-L Busway is
the most logical choice for high tech,
computer intensive environments,
especially when isolated ground is
required.
HOUSING
XJ-L busway features a totally enclosed,
non-ventilated, 2-piece steel housing.
The housing is covered with an electrostatically applied light gray ANSI 61
polyester urethane powder paint. The
paint is scratch resistant and has a 500
hour salt spray rating.
CONDUCTORS
PLATING
TESTING
The bus bars are tin plated over their
entire length to ensure good electrical
contact at all joint and plug tap-off
points. The plating also serves to protect
the bars from corrosion. Optional silver
plating is available.
Each piece of XJ-L busway is factory
tested prior to shipment. A dielectric test
is performed to ensure product integrity.
XJ-L Busway is qualified to UL standards
and is manufactured and inspected in
accordance with ISO 9001 guidelines.
PLUG-IN BASE
COMPATIBILITY
XJ-L busway features multiple
plug-in locations. The plastic, nontracking outlets are located on 20"
centers and support the bus bars
providing bracing during short-circuit
conditions. The plug-in outlets are IP2x
rated (finger-safe). Optional plug-in base
covers (XOC) are available separately or
they can be factory installed.
100A aluminum sections are no longer
available. However, 100A copper
sections are fully compatible with the
aluminum busway.
JOINT CONNECTION
NEUTRAL
Busway sections are connected via a
maintenance-free, spring pressure joint.
The busway ends are easily aligned and
bus bar ends are held securely in place
by spring pressure clips located in the
joint insulator. The housings are
connected via external housing plates
and captive screws.
100% neutral is available as standard,
200% neutral is offered as a custom
product.
BUS PLUGS
GROUND
The internal ground bus is 100%
rated for 100A and 60% rated for
200A busway. Isolated ground is
rated at 100% for both amperages.
There are twelve plug-in outlets on each
10' (3.048m) section, six openings on
5' (1.524m) sections and two outlets
on 2' (.616m) sections. Bus plugs are
available with amperages ranging from
15A to 100A. Plugs feature circuit
breakers or fusible switch disconnects.
The conductors are fabricated from 98%
conductivity copper. The bars are
"spaced-in-air" and held securely in the
housing by the plug-in outlets and joints.
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STANDARDS
XJ-L Busway products meet the
following standards:
UL 857
NEMA BU1
CSA C22.2
RATINGS
Amperage: . . . 100A and 200A
Voltage:. . . . . . 600VAC max
Short Circuit: . . 100A - 10kAIC
200A - 14kAIC
5
XJ-L 100 & 200 Ampere
Straight Sections
Available in 10’ (3.048m), 5’ (1.524m), or
2’ (.616m) standard lengths, XJ-L Busway
offers layout flexibility to meet custom
requirements. XJ-L offers twelve plug-in
outlets, six per side on 10’ sections. For
convenience, the openings are located in
alternate positions from side to side, and
are all usable simultaneously.
XJ-L busway also features an exclusive
rotating cover plate to facilitate inspection
of the joints. The light weight design of
the busway and plugs makes the
installation of XJ-L quick and trouble-free.
CROSS SECTION
Amperage
Busbar
Material
100A
Copper
200A
Copper
XJ-L
Plug-In
Busway
Bar
Thickness
Bar
Width
Housing
Width
Housing
Height
0.125”
(3.2mm)
0.125”
(3.2mm)
0.5”
(12.7mm)
1.0”
(25.4mm)
2.0”
(50.8mm)
2.5”
(63.5mm)
6.13”
(154.7mm)
6.13”
(154.7mm)
100 Ampere Rating
3-Pole
Length
Catalog
Number
10’
(3.04m)
Weight
5’
(1.52m)
XC1003
42
2’
(0.61m)
XC10035
XC10032
Short
Circuit
Ratings
600V
0kA
600V
14kA
200 Ampere Rating
4-Pole
Catalog
Number
Max
Voltage
3-Pole
Weight
Catalog
Number
XC1004
45
21
XC10045
8
XC10042
4-Pole
Weight
Catalog
Number
Weight
X2003
56
X2004
62
23
X20035
28
X20045
30
9
X20032
11
X20042
12
Note: A ground in the diagram is available for all XJ-L busway systems. For systems so equipped, add suffix
letter “G” to the catalog number. The neutral bar “N” is omitted on 3-Pole busway. The isolated ground (suffix
letter IG) or second neutral bar is positioned above the A-Phase bus bar.
6
XJ-L Fittings
XJ-L Flat Elbows
Right-Hand or Left-hand, XJ-L busway
system 90o flat elbows are available.
When specifying be sure to use the
proper catalog number suffix to identify
the required fitting.
Amps
100
200
Flat Left (3)
Flat Right (1)
Catalog Number
Number
of Poles
Right-Hand
Left-Hand
3
4
3
4
XC1003L1
XC1004L1
X2003L1
X2004L1
XC1003L3
XC1004L3
X2003L3
X2004L3
Add suffix letter “G” to catalog number for ground
bus and/or suffix “IG” to catalog number for
isolated ground bus.
XJ-L Edge Elbows
Right-Hand or Left-hand, XJ-L busway
system 90o edge elbows are available.
When specifying be sure to use the
proper catalog number suffix to identify
the required fitting.
Amps
100
200
Catalog Number
Number
of Poles
Right-Hand
Left-Hand
3
4
3
4
XC1003L2
XC1004L2
X2003L2
X2004L2
XC1003L4
XC1004L4
X2003L4
X2004L4
Add suffix letter “G” to catalog number for ground
bus and/or suffix “IG” to catalog number for
isolated ground bus.
XJ-L XJ-L XJ-L
XJ-L XJ-L XJ-L XJ-L XJ-L
XJ-L XJ-L XJ-L XJ-L XJ-L XJ-L XJ-L XJ-L XJ-L
Edge Left (4)
Edge Right (2)
7
XJ-L Flanged End
Flanged ends are used to connect
busway to switchboards. Flanged
ends come complete with bus bar
extensions to facilitate the making
of electrical connections.
Amps
Number
of Poles
Catalog
Number
3
4
3
4
XC1003FE
XC1004FE
X2003FE
X2004FE
100
200
Add suffix letter “G” to catalog number for ground
bus and/or suffix “IG” to catalog number for
isolated ground bus.
XJ-L Tee
Tees permit a second run of busway
to extend at right angles to a straight
busway run.
Amps
100
200
Catalog Number
Number
of Poles
Right-Hand
Left-Hand
3
4
3
4
XC1003T2
XC1004T2
X2003T2
X2004T2
XC1003T4
XC1004T4
X2003T4
X2004T4
Add suffix letter “G” to catalog number for ground
bus and/or suffix “IG” to catalog number for
isolated ground bus.
Left Hand (-4)
Right Hand (-2)
8
XJ-L Bus Plugs
Bus plugs for the XJ-L are available
from 15A to 100A, with molded
case circuit breakers or Vacu-Breakd
fusible switches. Bus plugs may be
operated with a pull-chain or
hookstick from the floor.
especially important in high-tech areas
requiring frequent movement of
equipment. The XQ-R bus plug has
provisions for BQ or QP breakers as in
the XQ, but it has added wiring space
allowing for receptacle installation.
Additional add on features, such as
shunt trips, alarm switches, and auxiliary
contacts are also available for XEC and
XLEC bus plugs.
Lightweight and portable, plugs are
easily moved from one location to
another. Captive hardware allows for
easy removal and re-installation. This is
For XJ-L busway,
there are five basic
bus plug designs:
XQ
accepts plug-in or bolt-on type breakers
XQR
accepts plug-in or bolt-on type breakers
and has receptacle provisions
XEC
accepts heavy duty ED2 and ED4
circuit breakers
XLEC
accepts ED2, ED4 and ED6
circuit breakers
XLVB
features the Vacu-Breakd switch
XQ SERIES
(Cover Operable, 50A Max)
XQ Bus Plugs accept QP (plug-in) or BQ (bolt-on)
circuit breakers. The plugs feature knockouts to
facilitate quick installation.
Enclosures Only
3 Phase
3 Wire
Breaker
Type
AC
Volts
Breaker
Ampere
Rating
QP & BQ
120/240
15–50
3 Phase
4 Wire
Catalog Number
XQ35
XQ45
XQ-R SERIES
(Cover Operable, 50A Max)
XQ-R Bus Plugs accept QP (plug-in) or
BQ (bolt-on) circuit breakers. The plugs
feature a spacious chassis which allows
room for wire bending space and the
installation of receptacles. Two 120 volt
duplex receptacles may be mounted on
the cover and one 208 volt receptacle
may be mounted in the bottom plate
Knockouts: 1/2”, 3/4”, 1”, 1 1/4”
conduit knockouts in both sides
Enclosures Only
3 Phase
3 Wire
Breaker
Type
AC
Volts
Breaker
Ampere
Rating
QP & BQ
120/240
15–50
3 Phase
4 Wire
Catalog Number
XQ35R
XQ45R
ACCESSORIES FOR XQ & XQ-R SERIES
XEQH. . . . . . . . . Floor Operating Handle with
ON/OFF Labels
W62890. . . . . . . Bonded Ground Kit
W68101. . . . . . . Isolated Ground Kit
W68101
XJ-L XJ-L XJ-L
XJ-L XJ-L XJ-L XJ-L XJ-L
XJ-L XJ-L XJ-L XJ-L XJ-L XJ-L XJ-L XJ-L XJ-L
XEQH
W62890
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XJ-L Bus Plugs
XEC SERIES
XLEC SERIES
XLVB SERIES
XEC Bus Plugs accept ED2 and ED4 circuit
breakers. The plugs feature a spacious
chassis which allows room for wire bending
and knockout provisions. Isolated ground
plugs are available from the factory.
XLEC Bus Plugs accept ED2, ED4 and ED6
circuit breakers. The plugs feature a spacious
chassis which allows room for wire bending
and knockout provisions. These plugs may
be operated from the floor with a pull-chain
or hookstick.
XLVB Fusible bus plugs utilize the Vacu-Break
switching principle, which minimizes arcing,
and reduces maintenance costs. The VacuBreak bus plugs are quick-make and quickbreak, cover interlocked, horsepower rated
and may be operated from the floor with a
pull-chain or hookstick.
(Cover Operable, 100A Max)
(Floor Operable, 100A Max)
Knockouts: 1”, 1 1/4”, 1 1/2”, 2” conduit
knockouts in both sides
Knockouts: 1”, 1 1/4”, 1 1/2”, 2” conduit
knockouts in both sides
Enclosures Only
Breaker A C Breaker Amp
Type
Volts
Rating
ED2
240
ED4
480
15 –100
(Floor Operable, 100A Max)
Knockouts: 1”, 3/4”, 1”, 1 1/4”, 1 1/2”, 2”
conduit knockouts in both sides
Enclosures Only
3 Phase/
3 Wire
3 Phase/
4 Wire
Catalog Number
XEC3100
XEC4100
XEC3100IG XEC4100IG
Fusible Vacu-Break Switch Plugs
3 Phase/
3 Wire
Breaker A C Breaker Amp
Type
Volts
Rating
ED2
ED4
240
480
ED6
600
15–100
3 Phase/
4 Wire
Catalog Number
XLEC3100
XLEC4100
Volts
240
600
ACCESSORY FOR XEC & XLEC
Catalog Number
Ampere
Rating
3 Pole
4 Pole
30
XLVB321
XLVB421N
60
XLVB322
XLVB422N
100
30
XLVB323
XLVB351
XLVB423N
XLVB451N
60
XLVB352
XLVB452N
100
XLVB353
XLVB453N
W62890 ..........Bonded Ground Kit
ACCESSORY FOR XLVB SERIES
W47185 .......... .....ON/OFF Labels
W62890
W47185
10
XJ-L Busway Tap Boxes
PLUG-IN & CENTER CABLE TAP BOXES
Plug-in cable tap boxes are non-fusible
devices used for end or center feed. The
100A tap boxes can be attached at any
plug-in opening. The 200A tap box
requires two adjacent openings. All tap
boxes will fit XC100 and X200 busway
systems.
100A PLUG-IN TAP BOX
Ampere
Rating
Number
of Poles
Catalog
Number
100
3
100
4
Bonded Ground Kit
Isolated Ground Kit
X103PB
X104PB
W62890
W68113
Add suffix letter “G” to catalog number for
ground bus and/or suffix “IG” to catalog
number for isolated ground bus.
Lug Sizes For Plug-In Tap Boxes
Ampere
Rating
Knockouts: 1/2”, 3/4”, 1”, 1 1/4”, 1 1/2”, 2”
conduit knockouts in both sides
100
Phase and
Neutral
(1) #1-10AWG
Ground
(1) #2-14 AWG
200A PLUG-IN TAP BOX
Ampere
Rating
Number
of Poles
200
3
200
4
Bonded Ground Kit
Catalog
Number
X2003PB
X2004PB
W62892
Add suffix letter “G” to catalog number for
ground bus. If isolated ground or 200% neutral
is required use Center Cable Tap Box.
Lug Sizes For Plug-In Tap Boxes
Ampere
Rating
Knockouts: 1”, 1 1/4”, 1 1/2”, 2”, 2 1/2”
conduit knockouts in both sides
200
Phase and
Neutral
(1) #6-250MCM
Ground
(1) #4-14 AWG
400A CENTER CABLE TAP BOX
The center cable tap box is rated for 400A and is
built on a 2' section of busway. Maximum loads
up to 200A must be applied to each side to avoid
electrical overload. Each run is limited to 50 feet
by the provision of NEC article 368-11.
Lug Sizes For Center Cable Tap Boxes
Ampere
Rating
Phase and
Neutral
Ground
400
(2) #6 - 250MCM
(1) #14- 1/0 kcmil
Ampere
Rating
Number
of Poles
400
400
3
4
Catalog
Number
X2003M
X2004M
Add suffix letter “G” to catalog number for
ground bus and/or suffix "IG" to catalog
number for isolated ground bus.
11
XJ-L Accessories
XH2 BUSWAY HANGER
XJ-L busway is supported through the
use of a two-piece, bolt together
hanger design. One size fits all XJ-L
busway systems. Two hangers are
furnished with each 10-foot straight
section, and can be used with
customer supplied rods up to 3/8-inch
in diameter. Hangers are adaptable for
wall mounting or ceiling suspension
arrangements, either edge or flat.
END CLOSER
An End Closer is used to terminate
busway runs. To extend the run,
simply remove the end closer and
add new sections as needed.
Dimensions
Ampere
Rating
Catalog
Number
A
B
C
100A
XE100
6 1/8”
2 1/6”
4 1/8”
200A
XE200
6 1/4”
2 5/8”
4 1/8”
XOC OUTLET COVERS
Optional outlet covers are available
for closing off the plug-in outlets
when desired.
Siemens Energy & Automation, Inc.
3333 Old Milton Parkway
Alpharetta, GA 30005
Call Center: 1-800-964-4114
seainfo@icn.siemens.com
www.sea.siemens.com
© 2002 Siemens Energy & Automation, Inc. All Rights Reserved
Siemens is a registered trademark of Siemens AG. Product names mentioned may be trademarks or
registered trademarks of their respective companies. Specifications are subject to change without notice.
Document BUPC-XJL-010502
Supersedes 5.3-1E
5MECP
Printed in USA