Allen-Bradley CENTERLINE 2100 User manual

CENTERLINE 2100 Low Voltage Motor Control Centers
Bulletin Numbers 2100
Installation Instructions
Original Instructions

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 2100-IN012G-EN-P - August 2016 3
Summary of Changes
This manual contains new and updated information as indicated in the
following table.
Topic Page
Added instructions to install a fixed-mount 24V DC two-branch redundant power
unit.
64
Added instructions to remove a circuit breaker in a vertical handle unit. 113
Added instructions to remove a circuit breaker in horizontal handle and space
saving units.
119

4Rockwell Automation Publication 2100-IN012G-EN-P - August 2016
Summary of Changes
Notes:

Rockwell Automation Publication 2100-IN012G-EN-P - August 2016 5
Table of Contents
Summary of Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
About This Publication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Additional Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Purchased Components and Additional Instruction Sheets . . . . . . . 10
Chapter 1
General Information Nameplate Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
MCC Sequence Numbering. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
UL/CSA Marking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Short-circuit Rating Label. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
ArcShield Rating Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Series Number and Series ID as Manufactured in the
United States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Series Lettering - Units and Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Receiving, Handling, and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Receiving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Storage and Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Chapter 2
Installation Procedures Location Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Height Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
ArcShield Clearance Height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Securing an MCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Seismic Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Joining and Splicing New MCCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Joining and Splicing Existing MCCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Joining and Splicing MCCs with ArcShield . . . . . . . . . . . . . . . . . . . . . 40
Installing and Joining Pull Boxes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Joining and Splicing NEMA Type 12 MCCs . . . . . . . . . . . . . . . . . . . . 40
Joining and Splicing NEMA Type 3R and Type 4 MCCs. . . . . . . . . 40
Bus Torque Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

6Rockwell Automation Publication 2100-IN012G-EN-P - August 2016
Table of Contents
Chapter 3
Installing Conduit and Cable Installing Conduit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Bottom Entry Conduit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Top Entry Conduit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Installing Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Lugs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Incoming Line Compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Main Disconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Cable Bracing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Incoming Line Brace. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Chapter 4
Installing and Removing Plug-in
Units
Installing Plug-in Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Remove a SecureConnect Unit from a Section. . . . . . . . . . . . . . . . . . . 50
Remove a Plug-in Unit with a Vertical Operating Handle
from a Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Remove a Plug-in Unit with a Horizontal Operating
Handle from a Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Remove the Support Pan. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Install Fixed-mount 24V DC Two-branch Redundant
Power Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Chapter 5
Arc Flash Protection Marking as
Required by the National
Electrical Code
Flash Protection Marking Requirement . . . . . . . . . . . . . . . . . . . . . . . . . 67
110.16 Flash Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Arc Flash Marking Clarification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Rockwell Automation Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Chapter 6
Operator Handle and Unit
Interlock
Defeating the Unit Door Interlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Open the Door When Operating Handle Is in the
ON/I Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Defeating the Unit Interlock Lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Energize a Unit with the Unit Door Open. . . . . . . . . . . . . . . . . . . 71
Locking Provisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Lock Vertical Operating Handles in the OFF/O Position . . . . . 72
Lock Horizontal Operating Handles in the OFF/O Position. . 73
Lock Units with Operating Handles in the ON/I Position . . . . 73
Unit Interlocks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Rockwell Automation Publication 2100-IN012G-EN-P - August 2016 7
Table of Contents
Chapter 7
Final Checklist Before Energizing Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Pre-energizing Check Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Perform the Pre-energizing Check Procedure . . . . . . . . . . . . . . . . . . . . 80
Door Latch Position Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
ArcShield Components Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
SecureConnect Unit Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Required Minimum Electrical Spacing . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Chapter 8
Energizing the Equipment Energize the Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Chapter 9
Maintenance Maintain the MCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Disconnect Switch and Contact Lubrication . . . . . . . . . . . . . . . . . . . 102
Use Thermal Infrared or Other Temperature Measurement
Techniques for Preventive Maintenance. . . . . . . . . . . . . . . . . . . . . . . . 103
Inspect the Units for Signs of Overheating. . . . . . . . . . . . . . . . . . 104
Chapter 10
Maintenance after Fault
Condition
Maintain the MCC after a Fault Condition . . . . . . . . . . . . . . . . . . . . 105
Chapter 11
Renewal Parts Order Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Chapter 12
Parts Illustrations Typical Section Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Typical Construction of a Unit with a Vertical
Operating Handle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Typical Construction of a Half Space Factor Unit with
a Horizontal Operating Handle and Door Mounted
Pilot Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Typical Construction of a Unit with a Horizontal
Operating Handle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

8Rockwell Automation Publication 2100-IN012G-EN-P - August 2016
Table of Contents
Appendix A
Bulletin 140G Unit Assembly
Instructions
Vertical Handle Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Required Tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Remove Circuit Breaker. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Install Circuit Breaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Verify Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Adjust Circuit Breaker Position. . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Horizontal Handle and Space Saving Design . . . . . . . . . . . . . . . . . . . 119
Required Tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Remove Circuit Breaker. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Install Circuit Breaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Verify Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Adjust the Circuit Breaker Position . . . . . . . . . . . . . . . . . . . . . . . . 124
Appendix B
Auxiliary Contact Adapters Install External Auxiliary Contact Adapter on G, H,
and J Frame Horizontal Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Required Tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Install the Auxiliary Contact Adapter . . . . . . . . . . . . . . . . . . . . . . 126
Install External Auxiliary Contact Adapter on G, H, J,
and K Frame Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Required Tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Install External Auxiliary Contact Adapter on M and
N Frame Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Required Tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Install the Auxiliary Contact Adapter . . . . . . . . . . . . . . . . . . . . . . 129
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

Rockwell Automation Publication 2100-IN012G-EN-P - August 2016 9
Preface
About This Publication This manual provides detailed installation instructions for installing, using the
operator handle, energizing, and maintaining your CENTERLINE® 2100
Motor Control Center.
This manual is intended for engineers or technicians directly involved in the
installation, connection, energizing, and maintenance of the CENTERLINE
2100 Motor Control Center.
If you do not have a basic understanding of the CENTERLINE 2100 Motor
Control Center, contact your local Allen-Bradley distributor or Rockwell
Automation sales representative for information on available training courses.
Additional Resources These documents contain additional information concerning related products
from Rockwell Automation.
Resource Description
CENTERLINE 2100 MCC Instantaneous Trip Motor Circuit Protectors (MCP) in Combination
NEMA Starter, Soft Starter (SMC), and Variable Frequency AC Drive Units Technical Data,
publication 2100-TD001
Provides information on using motor circuit protectors in a motor control center.
CENTERLINE 2100 MCC Inverse Time Circuit Breakers in Combination NEMA Starter, Soft
Starter (SMC), and Variable Frequency AC Drive Units Technical Data, publication
2100-TD002
Provides information and specifications for circuit breaker use in motor control
centers.
CENTERLINE Motor Control Centers Power Fuses Product Data, publication 2100-TD003 Provides information and specifications for fuse use in motor control centers.
DeviceNet Motor Control Centers (MCC) Technical Data, publication 2100-TD019 Provides information for motor control centers using a DeviceNet network.
CENTERLINE Motor Control Centers with EtherNet/IP, publication 2100-TD031 Provides information for motor control centers using an EtherNet/IP network.
Arc-Flash Resistant Low Voltage Motor Control Center Designs White Paper, publication
2100-AP003
Provides information about arc-resistant motor control centers.
Power Factor Correction Capacitors for Bulletin 2100 MCC Starter Units Application
Techniques, publication 2100-AT001
Provides information about the use of power factor correction capacitors.
CENTERLINE 2100 Motor Control Centers Joining and Splicing Vertical Sections
Instructions, publication 2100-IN010
Provides information for joining and splicing vertical sections.
CENTERLINE 2100 Motor Control Centers (MCC) Units with Vertical Operating Handles
Installation Instructions, publication 2100-IN014
Provides information on installing vertical handle units.
CENTERLINE Motor Control Centers NEMA Type 12 Sealing Instructions, publication
2100-IN037
Provides information on sealing motor control centers to NEMA Type 12 specifications.
Receiving, Handling, and Storing Motor Control Centers Instructions, publication
2100-IN040
Provides information on how to receive, handle, and store motor control centers.
CENTERLINE 2100 Motor Control Center End Closing Plates Installation Instructions,
publication 2100-IN069
Provides instructions for installing end closing plates.
CENTERLINE 2100 Motor Control Center (MCC) Units with Horizontal Operating Handles
Installation Instructions, publication 2100-IN060
Provides information to install units with horizontal operating handles.
CENTERLINE Motor Control Centers Mains and Incoming Lines Dimensions Reference,
publication 2100-4.2
Provides dimension drawings for lug compartments, main fusible disconnects, main
circuit breakers, and conduit entry.
CENTERLINE Motor Control Centers Installing a Pull Box on a Bulletin 2100 Vertical Section
Installation Instructions, publication 2100-5.28
Provides instructions on installing a Pull Box on a motor control center.

10 Rockwell Automation Publication 2100-IN012G-EN-P - August 2016
Preface
You can view or download publications at
http://www.rockwellautomation.com/global/literature-library/overview.page.
To order paper copies of technical documentation, contact your local
Allen-Bradley distributor or Rockwell Automation sales representative.
The documents in the following table are referenced in this document and can
be obtained from their respective organizations.
Purchased Components and
Additional Instruction Sheets
When equipment such as transformers, metering, programmable controllers,
or drives are supplied with the motor control center (MCC), specific
publications are shipped with the units. Read and understand these documents
before installing and operating the MCC.
Safety Guidelines for the Application, Installation, and Maintenance of Solid-state Control
Installation Instructions, publication SGI-1.1
Provides safety guidelines for the application, installation, and maintenance of solid-
state control.
Industrial Automation Wiring and Grounding Guidelines, publication 1770-4.1 Provides general guidelines for installing a Rockwell Automation industrial system.
Product Certifications website, http://www.rockwellautomation.com/global/
certification/overview.page
Provides declarations of conformity, certificates, and other certification details.
Resource Description
Resource Website
National Electrical Manufacturer’s Association (NEMA)
• NEMA ICS 1-2000 Industrial Control and Systems: General Requirements
• NEMA ICS 2.3-1995, Instructions for Handling, Operation and Maintenance of
Motor Control Centers Rated Not More Than 600V
http://www.nema.org
National Fire Protection Association (NFPA)
• NFPA 70 - National Electrical Code
• NFPA 70A - Recommended Practice for Electrical Equipment Maintenance
• NFPA 70E - Standard for Electrical Safety in the Workplace
http://www.nfpa.org
Institute of Electrical and Electronic Engineers (IEEE)
IEEE standard C37.20.7 - IEEE Guide for Testing Metal-Enclosed Switchgear Rated Up
to 38 kV for Internal Arcing Faults
http://www.ieee.org

Rockwell Automation Publication 2100-IN012G-EN-P - August 2016 11
Chapter 1
General Information
Allen-Bradley® CENTERLINE® Motor Control Centers (MCCs) consist of
one or more vertical sections containing electromagnetic or solid state control
devices that are prewired and tested within modular (plug-in) or frame
mounted (hard-wired) units.
These are the standard dimensions for CENTERLINE MCCs:
•Standardwidths
– 20 in. (508 mm)
– 25 in. (635 mm)
– 30 in. (762 mm)
– 35 in. (789 mm)
– and 40 in. (1016 mm)
• Standard front-mounted depths
– 15 in. (381 mm)
– 20 in. (508 mm)
• Standard back-to-back mounted depths
– 30 in. (762 mm)
– 40 in. (1016 mm)
•Standardheight
– 90 in. (2286 mm)
– 70.5 in. (1791 mm)
All MCC sections are supplied with top and bottom horizontal wireways.
Sections that are designed to accommodate plug-in units include a vertical
wireway. Each 90 in. (2286 mm) vertical section can accommodate up to 6.0
space factors or 78 in. (1981 mm) for units.
Units (buckets) are designed in increments of 0.5 space factors. Each 0.5 space
factor is approximately 6.5 in. (165.1 mm) high. Units are designed as either
removable (plug-in) or frame-mounted (non-plug-in).
Individual units house a wide variety of power and logic devices. Plug-in units
are mounted on unit support pans within the section. Stab assemblies on the
back of the unit plug onto the vertical bus. A mechanical interlock prevents the
unit door from being opened when the disconnect is not in the OFF position.
An additional mechanical interlock prevents the unit from being plugged-in or
unplugged when the disconnect is not in the OFF position.

12 Rockwell Automation Publication 2100-IN012G-EN-P - August 2016
Chapter 1 General Information
Line power is distributed throughout the MCC via an isolated bus work
structure. The main horizontal bus is in the center of each section. Standard,
center-fed, 300 A rated vertical bus supplies power to the individual units
above and below the horizontal bus for an effective 600 A capacity, providing
virtually unrestricted unit arrangement. An optional 600 A vertical bus
provides 1200 A effective rating.
The CENTERLINE MCC is also available with an ArcShield™ rating. The
ArcShield rating includes arc-resistant features that are intended to help
provide enhanced protection to you during internal arcing faults (when
compared to MCCs that are designed only to meet UL 845 requirements).
Arcing faults can be caused, for example, by accidental touching, closing into
faulted lines, or loose connections. Depending on the application, MCCs with
the ArcShield rating can provide up to Type 2 accessibility per IEEE standard
C37.20.7, which helps protect you when you are at the front, sides, and rear of
the enclosure in the unlikely event of an arcing fault.
A label on the MCC with the ArcShield rating provides information in regard
to the accessibility level and arc fault ratings.
For more information about accessibility levels, performance, and testing
requirements, refer to IEEE standard C37.20.7, IEEE Guide for Testing Metal-
Enclosed Switchgear Rated up to 38 kV for Internal Arcing Faults.
MCCs with the ArcShield rating provide a reinforced structure and arc-
containment latches on all doors. To help protect you during an arc-fault, arc-
containment latches, when closed and latched properly, provide pressure relief
and help keep the doors from unlatching or detaching from the structure.
Nameplate Data Each MCC section has a nameplate on the enclosure or vertical wireway door.
The nameplate includes the following information:
• Catalog number/serial number
• Series letter of section
• Bus bar voltage and current rating
•Sectionnumber
• UL and cUL certification marking
• UL registration number
•Enclosuretype
Figure 1 - Section Nameplate

Rockwell Automation Publication 2100-IN012G-EN-P - August 2016 13
General Information Chapter 1
Section Number
UL and cUL Certification Marking
Catalog Number/Serial Number
Series Letter of Section
Bus Bar Voltage and
Current Rating
UL Registration Number
Enclosure Type

14 Rockwell Automation Publication 2100-IN012G-EN-P - August 2016
Chapter 1 General Information
Each plug-in and frame mounted unit also has an identification label. The unit
label is on the interior of the bottom plate of plug-in units or on the interior
right-hand side plate of the frame mounted units. The unit label for each plug-
in or frame mounted unit includes the following information:
• Catalog number/serial number
• Series letter of the unit
• Voltage rating
•Unitlocation
• UL and cUL certification marking
• Device type and size
Figure 2 - Unit Label
The catalog number or serial number and series letter are required to properly
identify the equipment to sales or factory personnel.
MCC Sequence Numbering CENTERLINE MCCs are designed so functionality is not affected by the
section installation order, for example, vertical section-numbering sequence
order.
All MCC sections carry a serial plate that identifies vertical section sequence
numbering. For example, MCC section 1 of 1, 1 of 5, and so on.
Figure 3 - Section Nameplate
cUL Certification Marking
Catalog Number / Serial Number Unit Location
Device Type and Size Voltage Rating
Series Letter of Unit
Identifies Vertical Section
Sequence Numbering

Rockwell Automation Publication 2100-IN012G-EN-P - August 2016 15
General Information Chapter 1
Sections are numbered to match factory-supplied MCC elevation drawings.
Numbering each section helps installers and users easily identify MCCs,
sections, and units. If there are questions about section numbering during field
installation, inspection, or operation, the following information can provide
guidance on equipment acceptability, listing, and certification.
CENTERLINE MCC sections can be installed or added as follows:
•Innon-sequentialorder
• Addition of a single section (add-on section)
• Addition of multiple sections (add-on lineup of sections)
• Addition of single section or multiple section between MCC sections
If sections are added to an existing lineup and not installed in sequential order,
the installation is not considered a misapplication or in conflict with
Underwriter Laboratories (UL) listing and Canadian Standards Association
(CSA) certification.
The paramount criteria for additions of sections to existing MCCs is matching
the horizontal bus electrical and ingress protection (enclosure type) ratings for
the total MCC line up. For example, the voltage, current rating, short circuit
withstand, and NEMA enclosure type (IP rating) for all sections must match.
Non-sequential numbering cannot create a functional or listing/certification
issue. However, install MCCs sin sequential order. Installing MCCs in
sequential order helps ensure proper installation and ensures that factory-
supplied documentation matches the equipment.
You can rearrange MCC sections. However, if a section that uses a right-hand
side sheet with integral, internal mounting flanges is on the outside of a lineup,
an additional closing kit plate is required. Refer to CENTERLINE 2100
Motor Control Center End Closing Plates Installation Instructions,
publication 2100-IN069. MCCs that contain arc resistant features cannot use
a section with integral mounting flanges on the outside of a lineup.
UL/CSA Marking CENTERLINE MCCs are listed by Underwriter’s Laboratories, Inc. (UL),
Standard for Safety UL 845, and certified by the Canadian Standards Associate
(CSA), Standard C22-2, No. 14.
Due to standards harmonization, an MCC can also carry the cUL designation.
The cUL designation is comparable to CSA certification.
Vertical sections and units are labeled independently. It is possible to have
combinations of labeled and non-labeled sections and units in the same MCC.

16 Rockwell Automation Publication 2100-IN012G-EN-P - August 2016
Chapter 1 General Information
Vertical sections and structure options that are UL listed and CSA/cUL
certified are marked accordingly. All components in a UL or CSA listed
section must be UL listed and cUL/CSA certified. The UL and/or CSA/cUL
designation is an integral part of the section nameplate as shown on page 14.
Units and unit options that are UL listed and CSA/cUL certified are marked
accordingly. All options and components in a UL and/or cUL/CSA listed unit
must be UL listed or recognized and/or cUL/CSA certified. The UL
designation is on the interior of the bottom plate of plug-in units or on the
interior right-hand side plate of frame mounted units.
Figure 4 - UL Label Designation for Units
Short-circuit Rating Label MCC vertical sections that are UL listed and/or CSA/cUL certified carry a
short-circuit rating label. The short-circuit rating label for a vertical section is
on the inside of the vertical wireway door of standard sections or on the
interior right-hand side plate of a section that contains a unit that occupies the
full section and does not contain a vertical wireway.
Figure 5 - Short Circuit Label for Sections
MCC units that are UL listed and/or CSA/cUL certified carry a short-circuit
rating label on the bottom plate of plug-in units or on interior right-hand side
plate of frame mounted units.
Figure 6 - Short Circuit Label for Units

Rockwell Automation Publication 2100-IN012G-EN-P - August 2016 17
General Information Chapter 1
ArcShield Rating Labels MCC units that have the arc resistant rating carry a rating label on the vertical
wireway door. This label serves as the arc resistant nameplate and provides
information on the arc resistant rating. There are labels on other parts that
need to be in place before operating an arc resistant MCC.
Figure 7 - ArcShield Labels
Series Number and Series ID
as Manufactured in the
United States
ARC RESISTANT EQUIPMENT
ACCESSIBILITY: TYPE 2
ARC SHORT CIRCUIT CURRENT: ≤ 65 kA
ARC DURATION: DEVICE LIMITED
PROTECTIVE DEVICE:
UL LISTED FUSES
CLASS L – ANY FUSE ≤1200 A
CLASS R – ANY FUSE ≤600 A
CLASS J – ANY FUSE ≤600 A
UL LISTED MOLDED CASE CIRCUIT BREAKERS
ALLEN-BRADLEY – BULLETIN140U, FRAME I, JD, or K
CUTLER-HAMMER – SERIES C, FRAME F, J, K, L, M, or N
SQUARE D - POWERPACT FRAME M (480V AC ONLY)
WARNING
PER IEEE C37.20.7 2007
ARC FLASH HAZARD
THE ARC CONTAINMENT CAPABILITY OF THE MOTOR
CONTROL CENTER IS DEPENDENT UPON THE MAIN
PROTECTIVE DEVICE. PROTECT ONLY WITH UL LISTED
PROTECTIVE DEVICE SPECIFIED ABOVE.
DOORS AND COVERS MUST BE PROPERLY CLOSED,
LATCHED, AND SECURED. EQUIPMENT MUST BE INSTALLED
PER MANUFACTURER’S INSTRUCTIONS.
REFER TO PUBLICATION 2100-IN012.
EQUIPMENT WILL NOT FUNCTION AS ARC RESISTANT IF
ABOVE GUIDELINES ARE NOT FOLLOWED.
FAILURE TO FOLLOW THESE GUIDELINES COULD RESULT IN
SEVERE INJURY OR DEATH.
PN-240698
ALLEN-BRADLEY – BULLETIN 140G, FRAME G, H, J, K, M, or N
NOTE: 140G-N MUST HAVE INSTANTANEOUS TRIP FUNCTION
ON AND SET NO HIGHER THAN 12,000A
100 ms Arc Duration Device Limited Rating
ATTENTION: Read tables 1through 4before adding new sections or units to
an existing CENTERLINE MCC.
Table 1 - Sections
Series
Letter
Scope Description of Change DateImplementedin
the U.S.
A (1) — Original design February 1971
B (1) All Changed terminal blocks November 1976
C(1) All Elimination of external mounting channels June 1979
D(1) All Reverse fed 2192 and 2193 April 1981
E(1) All Redesign gasketing October 1982
F (1) All Modified top horizontal wireway pan to accept units with handle interlock in topmost space factor October 1983
G (1) 42K 42 k bracing-incorporates new bus support and cover January 1985
G(1) 65K 65 k bracing-incorporates new bus support and cover July 1985
H All New hinge design January 1986
J All Changed handle, operating mechanism, and circuit breaker to Cutler-Hammer series C, 150 A, 250 A, 400 A frame October 1986
K All Changed to new unit grounding system May 1990
L All Changed to new 600…1200 A circuit breaker operating mechanism February 1996

18 Rockwell Automation Publication 2100-IN012G-EN-P - August 2016
Chapter 1 General Information
M All Changed to serpentine DeviceNet cabling system May 2001
N All New design for 100,000 A bus bracing and begin use of right-hand sidesheet with integral mounting flanges. May 2009
P All New design for bus covers February 2012
(1) Replacement and renewal parts are no longer supported. For more information, contact Rockwell Automation LV MCC Technical Support at 1.440.646.5800 and follow the prompts to Allen-Bradley >
Low Voltage Motor Control Centers > Post Shipment Support.
Table 1 - Sections
Series
Letter
Scope Description of Change DateImplementedin
the U.S.
Table 2 - 2100 Units
Series
Letter
Scope Description of Change Date Implemented in
U.S.
A (1) — Original design February 1971
B (1) All sizes Changed terminal blocks November 1976
C (1) All sizes Changed handle mechanism to Cutler-Hammer MCPs June 1979
D(1) Size 5 Changed from ITE to Allen-Bradley 400A disconnect April 1981
E (1) All sizes Changed from Bulletin 709 series K starters to Bulletin 500 line starters April 1981
F(1) All sizes Redesign of gasketing, wraparound and unit support pan for Bulletin 700 line October 1982
G(1) All sizes Redesign of gasketing, wraparound and unit support pan for Bulletin 500 line October 1982
H (1) All sizes Changed to new door, circuit breaker mechanism and control station April 1984
J (1) Size 5 Changed to Bulletin 500 series L October 1984
Size 3 Changed to new PCP 100A disconnect December 1988
Size 6 Changed to Bulletin 500 series B starters October 1988
K Size 1-5 CB units
and size 1-2 disc
units
Changed handle, operating mechanism and circuit breaker to Cutler-Hammer series C, 150 A, 250 A, 400 A
frame
October 1986
L 21A through 54A Changed to Bulletin 100 line contactors in 21 A, 30 A, 45 A SMC units and original design 24 A, 35 A, 54 A SMC
units
November 1989
M All sizes Changed to new unit grounding system and 600 A, 800 A, 1200 A bolted pressure switch May 1990
N All sizes Changed to PCP 200 A and 400 A disconnect, derated vacuum Bulletin 2112 and 2113 and new pilot device
offerings
January 1993
P0.5SFCBunits
2103L, 2113, 2193
External auxiliary on circuit breakers April 1994
Q All sizes and ratings New disconnect external auxiliary contacts and new 600 A…1200 A circuit breaker operating mechanism May 1996
R SMC units Redesign and upgrade of ratings for 24 A…500 A SMC-2 and SMC-PLUS units. Original design of SMC Dialog
Plus units
August 1997
1200A 2193 Redesign of 1200A, 2193F and 2193M units November 1997
800A 2193 Changed circuit breakers to MDL Frame November 1998
225A 2193F Changed circuit breakers from J Frame to F Frame October 1999
T 2000A 2193 Changed to flange mounted operating handle November 2000
All sizes Changed the Bulletin 800MR and Bulletin 800T-PS pilot devices to Bulletin 800Es November 2000
All 1.5 space factor
units
Changed unit bottom plate November 2000
U All except 2100-SD1 Changed to new Bulletin 1497 control circuit transformer July 2001
2100-SD1 Changed smoke detector head and base components November 2001

Rockwell Automation Publication 2100-IN012G-EN-P - August 2016 19
General Information Chapter 1
V 2162Q, 2163Q,
2164Q, 2165Q
Redesign of 240-480V PowerFlex®70 and release of 600V PowerFlex 70 April 2002
2162R, 2163R,
2164R, 2165R
Original release of PowerFlex 700 July 2002
2154H, 2155H Original release of SMC™-3 November 2002
2154J, 2155J Original release of SMC Flex April 2004
2112, size 3, 4 and 5 Redesign to reduced space factor with Class J fuse clip April 2004
2162T, 2163T Original release of PowerFlex 40 September 2004
2107, 2113, size 3 Reduced space factor April 2005
X 2162Q, 2163Q Reduced space factor, changed CCT with integral fuses April 2005
All sizes 800F pilot devices August 2005
Y 2154J, 2155J, 108 A
and 135 A
Redesign to change units from frame mounted to plug-in March 2006
2164Q, 2164R,
2165Q, 2165R
(Drive with manual
bypass)
Redesign for change from SMP overload relay to E1Plus overload relay August 2006
2107, 2113, size 2
and 3
Redesign due to starter component series letter change December 2009
Z Changed to Bulletin 140G and 140MG circuit breakers. December 2013
(1) Replacement and renewal parts are no longer supported. For more information contact Rockwell Automation LV MCC Technical Support at 1.440.646.5800 and follow the prompts to Allen-Bradley >
Low Voltage Motor Control Centers > Post Shipment Support.
Table 2 - 2100 Units
Series
Letter
Scope Description of Change Date Implemented in
U.S.
Table 3 - 2400 Units
Series
Letter
Scope Description of Change Date Implemented
in U.S.
A — Original design June 1990
B 18A, 24A, 30A Changed to series B, Bulletin 194R, 30 A disconnect March 1992
C 18A, 24A, 30A Changed to three Bulletin 800E pilot devices on 0.5 space factor units July 1992
D All sizes New disconnect external auxiliary contacts and new 600 A...1200 A circuit breaker operating mechanism February 1996
16A-85A Original design of units with a Bulletin 100-C contactor September 1999

20 Rockwell Automation Publication 2100-IN012G-EN-P - August 2016
Chapter 1 General Information
Series Lettering - Units and
Sections
When using sections in conjunction with units of different series letters,
consult the table below.
(
Table 4 - MCC Modifications for Unit and Structure Compatibility
IfMountedinthis
Type of
Section(1),(2)
Plug-in Units No
Additional
Parts
Required
Requires
Style 1 Unit
Support Pan
Requires
Style 3 Unit
Support
Pan
Requires
Style 3 Unit
Support Pan
w/ Bushing
Requires
Alternate
Top
Horizontal
Wireway Pan
Requires
Door
Gasketing
Kit
Requires
Retrofit
Kit (3)
Requires
Ground
Bus Kit
Space
Factor
Series — 2100H-UAJ1 2100H-
UA12100H-
UJ1
2100H-
USPA1
2100H-USPJ1
2100H-
NA4A1
2100H-NA4J1
2100H-
NA4A2
2100H-NA4J2
2100-GJ10 2100H-R1
2100H-R2
2100H-
GS1
NEMA Type 1 Series
A...D (4) 1.0 or
larger
A-E (4) ———————
F-L(4) — —— (5) ———
M or
later (6) ——— (5) ——
NEMA Type 1 Series
E...J(4)
0.5(2) N or later — — — ——
1.0 or
larger
A-E(4) —— ————
(8)
F-L(4) ———————
Morlater(6) ———————
NEMA Type 1 Series
K or later
0.5(2) N or later ———————
1.0 or
larger
A-L(4) —— ————
(8)
M or later ———————
NEMA Type 1 w/
gasket or Type 12
Series A...D
1.0 or
larger
A-E(4) ———————
F-L(4) — —— (5) ——
M or later — —— (5) —