Rockwell Automation Allen-Bradley CENTERLINE 400 User manual

CENTERLINE 400 A One-High
Cabinet, Standard and
Arc-Resistant Enclosure
Bulletin Numbers 1512A, 1512AT, 1512AP, 1512DM, 1512DO, 1512M,
1562E, 1591B, 1592BF, 1592BP
User Manual Original Instructions

2Rockwell Automation Publication 1512A-UM100H-EN-P - December 2021
CENTERLINE 400 A One-High Cabinet, Standard and Arc-Resistant Enclosure User Manual
Important User Information
Read this document and the documents listed in the additional resources section about installation, configuration, and
operation of this equipment before you install, configure, operate, or maintain this product. Users are required to familiarize
themselves with installation and wiring instructions in addition to requirements of all applicable codes, laws, and standards.
Activities including installation, adjustments, putting into service, use, assembly, disassembly, and maintenance are required to
be carried out by suitably trained personnel in accordance with applicable code of practice.
If this equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be
impaired.
In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from the use
or application of this equipment.
The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and
requirements associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility or liability for
actual use based on the examples and diagrams.
No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or software
described in this manual.
Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation, Inc., is
prohibited.
Throughout this manual, when necessary, we use notes to make you aware of safety considerations.
Labels may also be on or inside the equipment to provide specific precautions.
WARNING: Identifies information about practices or circumstances that can cause an explosion in a hazardous environment,
which may lead to personal injury or death, property damage, or economic loss.
ATTENTION: Identifies information about practices or circumstances that can lead to personal injury or death, property
damage, or economic loss. Attentions help you identify a hazard, avoid a hazard, and recognize the consequence.
IMPORTANT Identifies information that is critical for successful application and understanding of the product.
SHOCK HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that dangerous
voltage may be present.
BURN HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that surfaces may
reach dangerous temperatures.
ARC FLASH HAZARD: Labels may be on or inside the equipment, for example, a motor control center, to alert people to
potential Arc Flash. Arc Flash will cause severe injury or death. Wear proper Personal Protective Equipment (PPE). Follow ALL
Regulatory requirements for safe work practices and for Personal Protective Equipment (PPE).

Rockwell Automation Publication 1512A-UM100H-EN-P - December 2021 3
Table of Contents
Preface
Summary of Changes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
About This Publication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Download Firmware, AOP, EDS, and Other Files . . . . . . . . . . . . . . . . . . . . 8
Additional Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Chapter 1
Installation – Standard
Enclosure
Starter Identification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Recommended Torque Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Environmental Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
High Altitude Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Door Opening Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Opening the Low Voltage Doors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Opening the Medium Voltage Doors. . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Anchoring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Joining Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Access to the Power Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Rear Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Side Access. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Front Access – Top Incoming Line Cables . . . . . . . . . . . . . . . . . . . . . . 16
Front Access – Bottom Incoming Cables . . . . . . . . . . . . . . . . . . . . . . . 18
Load Cable Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Chapter 2
Installation – Arc Resistant
Enclosure
Door Opening Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Opening the Low Voltage Doors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Opening the Medium Voltage Door. . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Anchoring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Joining Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Access to the Power Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Rear Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Side Access. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Front Access – Bottom Incoming Cables (Bottom Entry/Exit) . . . . 30
Front Access – Top Incoming Cables (Top Entry/Exit) . . . . . . . . . . . 32
Load Cable Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Chapter 3
Common Installation Bus Splicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Power Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Insulated Power Bus Splicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Ground Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Incoming Line Cable Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Installation of Current Transformer Barrier . . . . . . . . . . . . . . . . . . . . . . . 41
Hi-Pot and Insulation ResistanceTest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Start-up Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

4Rockwell Automation Publication 1512A-UM100H-EN-P - December 2021
Contactor Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Preliminary Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Testing Contactor Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Chapter 4
Maintenance Tool Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Recommended Torque Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Door Interlock Circumvention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Power Lock-out Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Fuse Removal and Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Contactor Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Remove the Contactor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Contactor Interlock Rod Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
To Reduce the Gap Distance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
To Increase the Gap Distance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Isolation Switch Mechanism Inspection and Maintenance . . . . . . . . . . 60
Isolation Blade Switch Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Isolation Switch Mechanism Grounding Adjustment . . . . . . . . . . . . . . . 64
Auxiliary Contacts Inspection and Replacement . . . . . . . . . . . . . . . . . . . 65
Auxiliary Contacts Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Emergency Circumvention Procedure for Power Cell Entry . . . . . . . . . 68
Chapter 5
Spare Parts Spare Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Appendix A
ArcShield Unit Information Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
ArcShield Design. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Exhaust Systems: Chimney or Plenum Option . . . . . . . . . . . . . . . . . . . . . 74
Appendix B
ArcShield Plenum Installation
Instructions
Recommended Torque Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Plenum Bracing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
General Plenum Layout for ArcShield Line-up . . . . . . . . . . . . . . . . . . . . . 81
STEP 1 – Mounting a Single Plenum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Cabinet Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Plenum Placement on Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
STEP 2 – Alignment of “Side-by-Side” Plenums . . . . . . . . . . . . . . . . . . . . 84
STEP 3 – Sequence of Final Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
STEP 4 – Closing the Front of the Plenum Sections . . . . . . . . . . . . . . . . . 85
STEP 5 – Extension and Elbow Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . 85
STEP 6 – Mounting Extension/Elbow to Plenum “Line-up” . . . . . . . . . . 87
STEP 7 – Additional Mounting Support . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

Rockwell Automation Publication 1512A-UM100H-EN-P - December 2021 5
Appendix C
ArcShield Chimney Installation
Instructions
Recommended Torque Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
General Plenum Layout for ArcShield Line-up . . . . . . . . . . . . . . . . . . . . . 90
Cabinet Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Chimney Placement on Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Appendix D
Integrated Protective
Maintenance Grounding Device
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
IPMG Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Operating Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
IPMG Positioning Indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Key Interlocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Auxiliary Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
IPMG Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Appendix E
History of Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

6Rockwell Automation Publication 1512A-UM100H-EN-P - December 2021
Notes:

Rockwell Automation Publication 1512A-UM100H-EN-P - December 2021 7
Preface
Summary of Changes This publication contains the following new or updated information. This list
includes substantive updates only and is not intended to reflect all changes.
About This Publication This publication pertains to the Rockwell Automation Bulletin 1512A medium
voltage controller. The Bulletin 1512A structure provides one complete medium
voltage controller unit.
The installation section provides instructions for both the standard enclosure
type and the Rockwell Automation arc resistant type (ArcShield™).
The product Bulletin numbers covered by this document are:
• 1512A: 200/400 A, FVNR controller
• 1512AT: 200/400 A, Transformer Feeder
• 1512AP: 200/400 A, Prepared Space
This document may also be used as a reference guide for the following Bulletin
numbers:
• 1512DM: 200/400 A, VFD Input Contactor Units
• 1512DO: 200/400 A, VFD Output Contactor Units
• 1512M: 200/400 A, VFD Output Bypass Starter
• 1562F: 200/400 A, MV SMC-50 Solid-State (up to 4800V), Reduced
Voltage Starter
• 1591B: Incoming Line Unit
• 1592BF: Fused Load Break Switch for Feeders
• 1592BP: Fused Load Break Switch for Feeders, prepared space
Topic Page
Added 3000 A power bus graphic 38
Added section on isolation switch maintenance 60
Corrected part number for Isolation Switch Refurbishment Kit 71
Added attention statement around connecting arc-resistant equipment 73
Added Appendix D, Integrated Protective Maintenance Grounding device 93
Added History of Changes 101
IMPORTANT This document is to be used for all Bulletin 1512A unit types,
including arc resistant (ArcShield) units. Important information
specifically for ArcShield units can be found in Appendix A,
Appendix B and Appendix C.
ATTENTION: Users must refer to the information in Appendix A,
Appendix B and Appendix C to correctly install and maintain ArcShield
arc resistant units. Failure to do so may negate the arc resistant
benefits provided by ArcShield, exposing personnel to risk of serious
injury or death.

8Rockwell Automation Publication 1512A-UM100H-EN-P - December 2021
Preface
Download Firmware, AOP,
EDS, and Other Files
Download firmware, associated files (such as AOP, EDS, and DTM), and access
product release notes from the Product Compatibility and Download Center at
rok.auto/pcdc.
Additional Resources These documents contain additional information concerning related products
from Rockwell Automation.
You can view or download publications at rok.auto/literature.
Resource Description
Medium Voltage 450 A Contactor, Series G User Manual,
publication 1502-UM060 Provides information on handling, installing,maintaining, and troubleshooting 450 A medium
voltage contactors.
EtherNet/IP Network Devices User Manual, ENET-UM006 Describes how to configure and use EtherNet/IP devices to communicate on the EtherNet/IP
network.
Ethernet Reference Manual, ENET-RM002 Describes basic Ethernet concepts, infrastructure components, and infrastructure features.
System Security Design Guidelines Reference Manual, SECURE-RM001 Provides guidance on how to conduct security assessments, implement Rockwell
Automation products in a secure system, harden the control system, manage user access,
and dispose of equipment.
Industrial Components Preventive Maintenance, Enclosures, and Contact
Ratings Specifications, publication IC-TD002 Provides a quick reference tool for Allen-Bradley industrial automation controls and
assemblies.
Safety Guidelines for the Application, Installation, and Maintenance of
Solid-state Control, publication SGI-1.1
Designed to harmonize with NEMA Standards Publication No. ICS 1.1-1987 and provides
general guidelines for the application, installation, and maintenance of solid-state control in
the form of individual devices or packaged assemblies incorporating solid-state
components.
Industrial Automation Wiring and Grounding Guidelines, publication 1770-4.1 Provides general guidelines for installing a Rockwell Automation industrial system.
Product Certifications website, rok.auto/certifications. Provides declarations of conformity, certificates, and other certification details.

Rockwell Automation Publication 1512A-UM100H-EN-P - December 2021 9
Chapter 1
Installation – Standard Enclosure
Starter Identification A nameplate is attached to the right-side flange of the structure (see Figure 1).
Refer to the nameplate for information such as series number, section
number, NEMA enclosure type, unit ratings, and bus ratings.
Figure 1 - Typical Structure Nameplate
A nameplate is also found in the low voltage compartment (see Figure 2) with
specific unit motor application information.
IMPORTANT For information on the installation site preparation, see publication
MV-QS050.
ATTENTION: Use suitable personal protective equipment (PPE) per
local codes or regulations. Failure to do so may result in severe burns,
injury or death.

10 Rockwell Automation Publication 1512A-UM100H-EN-P - December 2021
Chapter 1 Installation – Standard Enclosure
Figure 2 - Typical Unit Nameplate
Refer to these nameplates whenever you contact Rockwell Automation for
assistance. Be prepared to provide such information as series number,
structure series, unit series, diagram schematic and catalog number.
Recommended Torque
Values
When reinstalling components, or when reassembling the cabinet, tighten the
following bolt sizes to the specified torque values:
Environmental Conditions The controller must accept nominal plant power of 2400V, 3300V, 4200V,
4800V, 5500V, 6600V, 6900V (+5/-15%), or 7200 (+0/-15%), 3 phase 50/60 Hz
(± 3%).
The standard controller must operate in an ambient temperature range of
0…40 °C (32…104 °F) with a relative humidity of up to 95% (non-condensing).
Higher ambient temperature conditions are supported with factory assistance.
The equipment shall be capable of being stored in an environment with an
ambient temperature range of -40…+85 °C (-40…+185 °F).
Table 1 - Torque Values for Hardware
1/4 in. hardware 8 N•m (6 lb•ft)
5/16 in. hardware 15 N•m (12 lb•ft)
3/8 in. hardware 27 N•m (20 lb•ft)
1/2 in. hardware 65 N•m (48 lb•ft)

Rockwell Automation Publication 1512A-UM100H-EN-P - December 2021 11
Chapter 1 Installation – Standard Enclosure
If storage temperature fluctuates or if humidity exceeds 85%, space heaters
must be used to prevent condensation. The equipment must be stored in a
heated building having adequate air circulation.
Rockwell Automation products are built using materials that comply with
Class 1: Industrial Clean Air sulfur environments as defined in IEC Standard
60654-4 (Operating Conditions for Industrial-Process Measurement and
Control Equipment), and G1 as defined in ISO-S71.04-1985 (Environmental
Conditions for Process Measurement and Control Systems: Airborne
Contaminants).
High Altitude Application
The equipment shall operate at altitudes from 0…1000 m (0…3300 ft) above sea
level, without derating. For applications above 1000 m (3300 ft), the maximum
current and basic impulse levels (BIL) of the controllers shall be derated, and
vacuum contactors may be compensated for operation at the specified altitude
(see publication 1500-SR020).
Door Opening Procedure Opening the Low Voltage Doors
Low voltage doors are identified as LV in Figure 3.
1. To access the low voltage compartment, use a flat-head screwdriver and
turn both of the 1/4-turn fasteners, located on the low voltage door, 90° in
a counterclockwise direction.
2. The door is now released and will swing open.
3. Reverse the procedure to secure the doors.
Figure 3 - Standard Cabinet
Refer to Access to the Power Bus on page 15 for the procedure to open the
swing-out low voltage panel behind the low voltage door.
WARNING: The equipment should never be stored outside.
.
.
.
.
Low Voltage Door
Medium Voltage Door

12 Rockwell Automation Publication 1512A-UM100H-EN-P - December 2021
Chapter 1 Installation – Standard Enclosure
Opening the Medium Voltage Doors
Medium voltage door is identified as MV in Figure 3.
Refer to Access to the Power Bus on page 15 for the procedure to open the
swing-out low voltage panel behind the low voltage door (for standard cabinet
only).
1. Electrically open the contactor by pressing the STOP button on the
starter or at the remote control location.
2. Move the isolation switch handle to the OFF position.
3. Unscrew the locking 3/8-1.75 bolts for the medium voltage door.
4. The door is now released and will swing open.
5. Reverse the procedure to close the door
ATTENTION: Medium voltage components may be located behind the
swing-out low voltage panel (standard cabinets only). Complete the
power lockout procedure (see Power Lock-out Procedure on page 49)
before attempting to open the swing-out low voltage panel. Failure to
do so may result in severe burns, injury or death.
ATTENTION: Complete the Power Lockout procedure (see Power Lock-
out Procedure on page 49) before beginning any service procedures to
the unit. Failure to do so may result in severe burns, injury or death.
IMPORTANT The medium voltage door has its own isolation switch handle and
interlocking safeguards.
IMPORTANT Ensure that the swing-out low voltage panel is in its original
position before attempting to close the MV door. When
closing the medium voltage door, ensure all door locking
bolts on the right side of the MV door are in place and
tightened until the door is flush with the flange. Do not
overtighten the bolts. If the door is not securely fastened, it
will not be possible to move the isolation switch handle to the ON
position.
ATTENTION: Complete the Power Lock-out procedure (see
Power Lock-out Procedure on page 49) before beginning any
service procedures to the unit. Failure to do so may result in
severe burns, injury or death.

Rockwell Automation Publication 1512A-UM100H-EN-P - December 2021 13
Chapter 1 Installation – Standard Enclosure
Anchoring Place the controller in the desired installation location. The floor must be flat
and level. Use four M12 (1/2 in.) floor mounting bolts to securely fasten the
controller to the mounting surface. See Figure 4 as an example of the location
of the mounting holes in the cabinet.
Figure 4 - Cabinet Floor Plan
Seismic Applications
•For installations on concrete – the minimum depth and radius of
concrete supporting the cabinet anchors is dependent on seismic loads.
Refer to important information above.
•For installations on a metal structure – the metal plate depth and cabinet
anchoring method is dependent on seismic loads.
Refer to Dimension Drawing provided with order documentation for additional
details related to cabinet floor plan.
IMPORTANT Pre-determined cabinets have been designed for Uniform Building Code
(UBC) seismic zone 1, 2A, 2B, 3 and 4, and IBC (International Building
Code) seismic activity without overturning or lateral movement,
provided they are securely mounted according to UBC, IBC and local
building codes. This can include concrete pad design, steel floor design
and the sizing of cabinet anchors. Concrete floor cutouts must not be
adjacent to floor anchor bolts and must be sized to seismic load. Consult
factory if floor mounting must be reviewed by an accredited engineer.
Many jurisdictions require an engineer from the local area to review the
design. Seismic qualification does not indicate that the equipment will
function properly after a seismic event.
Line cable conduit opening.
Load cable conduit opening for bottom
compartment.
Load cable conduit opening for top
compartment.
Control wire conduit opening. Each
opening provides access to top and
bottom compartments.
Mounting holes for M12 (1/2 in.) anchor
bolts.
Mounting holes for M12 (1/2 in.) anchor bolts
(required for seismic applications only).
Minimum distance to concrete floor cut -
out required for seismic applications.
1.00 (25) x 3.00 (76) removable sill
channels. Front All dimensions in. (mm)

14 Rockwell Automation Publication 1512A-UM100H-EN-P - December 2021
Chapter 1 Installation – Standard Enclosure
Joining Sections
1. Position the left side section on a level surface and secure the section in
place with M12 (1/2 in.) floor mounting bolts (refer to Anchoringon
page 13).
2. When joining NEMA/EEMAC Type 12 sections, apply a continuous 3 mm
(1/8 in.) wide bead of silicon sealer around the perimeter of one section.
3. Remove the side bus access covers if applicable.
4. Position the right section against the left section. Ensure that the surface
is level.
5. Secure the sections together using the 1/4-20 self-tapping screws (12 lb•ft
[15 N•m]). Thread the screw through the 7 mm (0.281 in.) clearance hole
to the corresponding 6 mm (0.219 in.) pilot hole. To access the front
clearance holes of the left-side cabinet, open the medium voltage doors.
To access the rear clearance holes remove the rear covers of the starter. If
rear access is not available, refer to Front Access – Top Incoming Line
Cables on page 16 or Front Access – Bottom Incoming Cables on page 18.
6. Secure the right section to the floor using M12(1/2 in.) floor mounting
bolts (refer to Anchoringon page 13).
Figure 5 - Joining Sections
Joining hardware can be found in a package mounted to the front
of the shipping skid. Refer to publication MV-QS050 for level floor
surface requirements.
IMPORTANT For arc-resistant cabinets, see Chapter 2 on page 23.
Front
Front
Side Bus
Access Cover
0.219 Pilot
Holes (5x)
0.281 Pilot
Holes (5x)
0.281 Pilot
Holes (5x)
0.219 Pilot
Holes (3x)

Rockwell Automation Publication 1512A-UM100H-EN-P - December 2021 15
Chapter 1 Installation – Standard Enclosure
Access to the Power Bus
Rear Access
1. Remove the hardware securing the center rear bus access cover
(Figure 6).
2. Remove the center rear bus access cover.
3. Once the rear bus cover is removed you will see the three bus bars
(Figure 7).
Figure 6 - Access to Power Bus from Side and Rear of Cabinet
Figure 7 - Bus Bars from Back Access
ATTENTION: This procedure requires contact with medium voltage
components. To avoid shock hazards, lock out incoming power before
working on the equipment (see Power Lock-out Procedure on page 49).
Verify with a hot stick or appropriate voltage measuring device that all
circuits are voltage free. Failure to do so may result in severe burns,
injury or death.
Side Bus
Access Cover
Center Rear Bus
Access Cover

16 Rockwell Automation Publication 1512A-UM100H-EN-P - December 2021
Chapter 1 Installation – Standard Enclosure
Side Access
A side bus access cover is located on each side of the controller.
1. Remove the hardware from the appropriate side bus access cover.
2. Remove the side bus access cover.
3. Once the side bus access cover is removed, you will see the three bus bars.
(Figure 8).
Figure 8 - Side Bus Access Cover Removed
Front Access – Top Incoming Line Cables
1. Complete the Power Lockout Procedure (see Power Lock-out Procedure
on page 49) for both medium voltage power cells and the power bus.
2. Open the low voltage cell door (refer to Opening the Low Voltage Doors
on page 11).
3. Open the medium voltage cell doors (refer to Opening the Medium
Voltage Doors on page 12).
4. Remove the two 1/4-20 self-tapping screws from the low voltage panel if
installed. (Installed for shipping purposes – see Figure 9).
5. Use a flat head screwdriver and turn both of the 1/4-turn fasteners 180
degrees in a counterclockwise direction.

Rockwell Automation Publication 1512A-UM100H-EN-P - December 2021 17
Chapter 1 Installation – Standard Enclosure
Figure 9 - Low Voltage Panel
Figure 10 - Access to Power Bus with Low Voltage Panel Rotated
6. Pull on right-hand side of low voltage panel. Swing low voltage panel to
the front and left of cabinet (see Figure 10).
7. Locate the removable bus access barriers (2).
8. Remove the 1/4-20 retaining screws from removable bus access barriers
to expose incoming cable connections to main bus (see Figure 11).
9. Install incoming line cables to power bus, torque to specifications (see
Recommended Torque Values on page 10).
10. Reverse procedure after cables have been installed.
The power cell door must be in a fully opened position prior
to rotating the low voltage panel.
Remove self-
tapping screws
Remove 1/4
turn fasteners
Swing Open Low
Voltage Panel
Removeself-tapping
screws from Bus
Access Barriers
Bus
Access

18 Rockwell Automation Publication 1512A-UM100H-EN-P - December 2021
Chapter 1 Installation – Standard Enclosure
Figure 11 - Power Bus with Barrier Removed
Front Access – Bottom Incoming Cables
If the incoming cables in your cabinet enter the section from the bottom,
follow the same procedure as for Front Access – Top Incoming Line Cables.
1. Open the power cell door.
2. Locate incoming cable duct at rear left-hand side of power cell (see
Figure 12).
3. Remove the 1/4-20 self-tapping screws from the cable duct access
barriers. Remove barriers.
4. Route and install incoming line cables to power bus. Torque to
specifications (see Recommended Torque Values on page 10).
5. Reverse procedure after cables have been installed.
ATTENTION: Ensure all barriers are replaced before re-energizing the
equipment. Failure to do so may result in electrical faults and cause
damage to equipment or severe injury to personnel.
Access to incoming cable duct in the power cell is also required.
Low Voltage Panel
Power Bus

Rockwell Automation Publication 1512A-UM100H-EN-P - December 2021 19
Chapter 1 Installation – Standard Enclosure
Figure 12 - Access to Bottom Incoming Line Cables
Load Cable Connections
1. Complete the Power Lockout procedure (see Power Lock-out Procedure
on page 49).
2. Remove the appropriate cable conduit opening plate(s) from the cabinet
(see Figure 13 to Figure 15). The plate may be punched or cut to mount
conduit.
3. Load cables for the power cell should be routed before control cables. Pull
the cables into the cabinet through the appropriate opening (see
Figure 13 to Figure 15).
ATTENTION: Ensure all barriers are replaced before re-energizing the
equipment. Failure to do so may result in electrical faults and cause
damage to equipment or severe injury to personnel.
Cable duct
access barrier
Bottom incoming
cable duct located
in power cell
ATTENTION: To avoid shock hazards, lock out incoming power (see
Power Lock-out Procedure on page 49) before working on the
equipment. Verify with a hot stick or appropriate voltage measuring
device that all circuits are voltage free. Failure to do so may result in
severe burns, injury or death.
IMPORTANT The current transformers may be positioned for top or bottom cable
exit. Follow the appropriate procedure described for your starter
configuration.
IMPORTANT Cable size should not exceed 1-750 MCM or 2-500 MCM per phase.
Stress cones should be internal non-skirted style only. The use of
external style (skirted style) is not recommended due to space
considerations.
Refer to Dimensional Drawings provided with order documentation
for additional details related to cabinet floor plan.

20 Rockwell Automation Publication 1512A-UM100H-EN-P - December 2021
Chapter 1 Installation – Standard Enclosure
4. Remove terminal assembly barriers.
5. Connect the cables to the terminal assembly and tighten the 1/2-13
hardware to 61 N•m (45 lb•ft).
6. Connect cable shields (if present) to the ground lug.
7. Reinstall the current transformer barrier and reassemble the cabinet.
Figure 13 - Access to Load Cable Conduit Openings (Bottom Entry)
Figure 14 - Load Cable Conduit Openings, Bottom Exit
Bottom line cable conduit opening.
Bottom load cable conduit opening.
Control wire conduit opening.
Mounting holes for 1/2 in. (12) dia. anchor bolts.
Removable lifting angles (20).
1.00 (25) x 3.00 (76) non removable sill channel.
Top line cable conduit opening (not present when
bottom entry/exit is specified with order).
Top load cable conduit opening (not present
when bottom entry/exit is specified with order).
Front
Dimensions = in. (mm)
Floor Plan