Allen-Bradley CENTERLINE User manual

CENTERLINE

Low Voltage

Motor Control

Centers

Instruction Manual

Important User Information

Solid state equipment has operational characteristics differing from those of

electromechanical equipment. Safety Guidelines for the Application, Installation and

Maintenance of Solid State Controls (Publication SGI-1.1 available from your local

Rockwell Automation sales office or online at http://www.ab.com/manuals/gi)

describes some important differences between solid state equipment and hard-wired

electromechanical devices. Because of this difference, and also because of the wide

variety of uses for solid state equipment, all persons responsible for applying this

equipment must satisfy themselves that each intended application of this equipment is

acceptable.

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.

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.

IMPORTANT Identifies information that is critical for successful application

and understanding of the product.

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

•recognize the consequence

SHOCK HAZARD Labels may be located on or inside the equipment (e.g. drive or

motor) to alert people that dangerous voltage may be present.

BURN HAZARD Labels may be located on or inside the equipment (e.g. drive or

motor) to alert people that surfaces may be dangerous

temperatures.

iPublication 2100-IN012B-EN-P - April 2005

Table of Contents

Important User Information . . . . . . . . . . . . . . . . . . . Inside Front Cover

Table of Contents

Preface

Recommended Publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v

Purchased Components and Additional Instruction Sheets . . . . . . . . . v

Chapter 1

General Information

General Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Nameplate Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Motor Control Center Sequence Numbering . . . . . . . . . . . . . . . . . . . 1-3

UL/CSA Marking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Short Circuit Rating Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Series Number and Series ID as Manufactured in the U.S. . . . . . . . . 1-6

Series Lettering - Units & Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

Receiving, Handling and Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

Receiving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

Handling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11

Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12

Chapter 2

Installation Procedures

Location Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Height Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Securing a Motor Control Center . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Seismic Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Joining & Splicing New Motor Control Centers . . . . . . . . . . . . . . . . 2-7

Joining & Splicing Existing Motor Control Centers. . . . . . . . . . . . . . 2-8

Installing and Joining Pull Boxes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Joining and Splicing NEMA Type 12 Motor Control Centers . . . . . 2-8

Joining & Splicing NEMA Type 3R and Type 4

Motor Control Centers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

Bus Torque Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Chapter 3

Final Checklist Before Energizing

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Perform a Pre-Energizing Check Procedure. . . . . . . . . . . . . . . . . . . . 3-1

Pre-Energizing Check Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Publication 2100-IN012B-EN-P - April 2005

Chapter 4

Installing Conduit and Cable

Installing Conduit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Bottom Entry Conduit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Top Entry Conduit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Installing Cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Lugs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Incoming Line Compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Main Disconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Cable Bracing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Incoming Line Brace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Chapter 5

Installing and Removing Plug-In

Units

Installing Plug-In Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Removing Plug-In Unit with a Vertical Operating Handle

from a Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Removing Plug-In Unit with a Horizontal Operating Handle

from a Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

Removing Support Pan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

Chapter 6

Arc Flash Protection Marking as

Required by the National

Electrical Code

Flash Protection Marking Requirement . . . . . . . . . . . . . . . . . . . . . . . 6-1

110.16 Flash Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

Arc Flash Marking Clarification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

Rockwell Automation Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

Chapter 7

Operator Handle and Unit

Interlock

Defeating the Unit Door Interlock . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Opening the Door when the Operating Handle is in the

ON/I Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Defeating the Unit Interlock Lever . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

Energizing a Unit with the Unit Door Open . . . . . . . . . . . . . . . . 7-3

Locking Provisions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

Locking Vertical Operating Handles in the

OFF/O Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

Locking Horizontal Operating Handles in the

OFF/O Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5

Locking units with Operating Handles in the

ON/I Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5

Unit Interlocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7

Chapter 8

Energizing Equipment

Energizing Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

Publication 2100-IN012B-EN-P - April 2005

iii

Chapter 9

Maintenance

Maintenance Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

Disconnect Switch and Contact Lubrication . . . . . . . . . . . . . . . . . . . 9-4

Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4

Chapter 10

Maintenance After Fault Condition

Maintenace After Fault Condition. . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1

Chapter 11

Renewal Parts

Order Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1

Chapter 12

Parts Illustrations

Typical Section Construction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1

Typical Construction of a Unit with a Vertical

Operating Handle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-2

Typical Construction of a Half Space Factor Unit with a Horizontal

Operating Handle and Door Mounted Pilot Devices . . . . . . . . . . . 12-3

Typical Construction of a Unit with a Horizontal

Operating Handle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-4

Rockwell Automation Support . . . . . . . . . . . . . . . . . Inside Back Cover

Installation Assistance . . . . . . . . . . . . . . . . . . . . . Inside Back Cover

New Product Satisfaction Return . . . . . . . . . . . . Inside Back Cover

Publication 2100-IN012B-EN-P - April 2005

vPublication 2100-IN012B-EN-P—April 2005

Preface

Recommended

Publications

The following publications supplement this manual. For more information

and further reference, please use these available publications.

Purchased Components and

Additional Instruction

Sheets

When equipment such as transformers, metering, PLCs or drives are supplied

with the motor control center, specific manuals and data sheets are also

supplied. These manuals and data sheets should be read and understood

before installing and operating the motor control center. Refer to the unit

locations of these devices for their manuals and/or data sheets.

Publication Title Publication Number(1)

(1) Some publication numbers contain a revision character ’x.’ This character will increase

alphabetically with successive revisions. Always order and use the latest revision available. The

publication numbers that appear in this publication use x, as a placeholder for the revision letter.

When referencing and/or ordering always use the latest revision available.

Arc-Resistant Low Voltage Motor Control Center Designs 2100-AP003x-EN-P

Power Factor Correction Capacitors for Bulletin 2100 Motor

Control Center Starter Units

2100-AT001x-EN-P

Arc Flash Protection Marking Guide for CENTERLINE®Motor

Control Centers

2100-AT002x-EN-P

CENTERLINE®Motor Control Centers - Joining and Splicing

Vertical Sections

2100-IN010x-EN-P

Installing Units with Vertical Operating Handles 2100-IN014x-EN-P

MCC NEMA Type 12 Sealing Instructions 2100-IN037x-EN-P

Receiving Handling and Storing MCCs 2100-IN040x-EN-P

HMCP Circuit Breakers 2100-TD001x-EN-P

Thermal Magnetic Circuit Breakers 2100-TD002x-EN-P

Power Fuses 2100-TD003x-EN-P

DeviceNet Motor Control Centers 2100-TD019x-EN-P

Service and Repair Guidance for Motor Control Centers 2100-TD028x-EN-P

Installing Bulletin 2400 Horizontal Operating Handle 2400-IN007x-EN-P

MCC Mains and Incoming Lines Reference 2100-4.2

Installing a Pull Box on a Bulletin 2100 Vertical Section 2100-5.28

Publication 2100-IN012B-EN-P - April 2005

1Publication 2100-IN012B-EN-P—April 2005

Chapter

General Information

General Description

Allen-Bradley CENTERLINE®Motor Control Centers (MCCs) consist of

one or more vertical sections containing electromagnetic and/or solid state

control devices that are prewired and tested within modular (plug-in) or frame

mounted (hard-wired) units.

CENTERLINE Motor Control Centers are designed in standard widths of

20” (508 mm), 25” (635 mm), 30” (762 mm), 35” (789 mm) and 40” (1016

mm). The standard front-mounted depths of an MCC are 15” (381 mm) and

20” (508 mm), in addition back-to-back mounted depths of 30” (762 mm) and

40” (1016 mm) are also offered. The standard height of an MCC is 90” (2286

mm). A 70.5” (1791 mm) high section is also available. All MCC sections are

supplied with top and bottom horizontal wireways. Most sections include

vertical wireways. Each 90” vertical section can accommodate up to 6.0 space

factors or 78” (1981 mm) for units.

Units (buckets) are designed in increments of 0.5 space factors. Each 0.5 space

factor is approximately 6.5” (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 located

on the back of the unit plug onto the vertical bus. A mechanical interlock

prevents the unit door from being opened while the unit is energized. An

additional mechanical interlock prevents the unit from being plugged-in or

unplugged when the disconnect is closed.

Line power is distributed throughout the MCC via an isolated bus work

structure. The main horizontal bus is located in the center of each section.

Standard, center-fed, 300 ampere rated vertical bus supplies power to the

individual units above and below the horizontal bus for an effective 600

ampere capacity, allowing virtually unrestricted unit arrangement. An optional

600 ampere vertical bus provides 1200 ampere effective rating.

Publication 2100-IN012B-EN-P - April 2005

1-2 General Information

Nameplate Data

Each MCC section has a nameplate located on the enclosure or vertical

wireway door. See Figure 1.1., section nameplate information includes:

•Catalog Number / Serial Number

•Series Letter of Section

•Bus Bar Voltage and Current Rating

•Section Number

•UL and cUL Certification Marking

•UL Registration Number

•Enclosure Type

Figure 1.1 Section Nameplate

Each plug-in and frame mounted unit also has an identification label. The unit

label is located on the interior of the bottom plate of plug-in units or on the

interior right hand side plate of the frame mounted units, see Figure 1.2.

The unit label for each plug-in or frame mounted unit includes:

•Catalog Number / Serial Number

•Series Letter of the Unit

•Voltage Rating

•Unit Location

•UL and cUL Certification Marking

•Device Type and Size

Figure 1.2 Unit Label

NOTE: The catalog number or serial number and series letter are required to

properly identify the equipment to sales or factory personnel.

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

cUL Certification Marking

Catalog Number / Serial Number Unit Location

Device Type and Size Voltage Rating

Series Letter of Unit

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