2100-5.0-Oct1995 (CenterLine2100 MCC Instruction Manual)

Instruction

Manual

Bulletin 2100

CENTERLINE®

Motor Control

Centers

(Cat. No. 2100-5.0)

Allen-Bradley

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Please Read! This manual is intended to guide qualified personnel in the

installation of CENTERLINE® Motor Control Centers. When additional information is required relating to the installation and/oroperation of CENTERLINE Motor Control Centers, refer to your local Allen-Bradley Sales Office. For further instructions regardingthe handling, installation, operation, and maintenance of motor control centers, refer to NEMA Publication ICS 2.3.

Before installing and operating your CENTERLINE Motor Control Center, carefully read this manual, read all related procedures aninstructions, and observe all precautions. Because of the variety ouses and applications for this equipment, the user must be satisfiewith the acceptability of each application and use of the equipmentno event will Allen-Bradley Company, Inc. be responsible or liable for indirect or consequential damages resulting from the use or application of this equipment.

The illustrations shown in this manual and any referenced publicatare intended solely to illustrate the text of the manual or referencepublication. Because of the many variables and requirements associated with any particular installation, the Allen-Bradley Company, Inc. can not assume responsibility or liability for actual use based upon the illustrative uses and applications.

Important User

Information

Reproduction of the content of this manual and/or related procedures/instructions, in whole or in part, without the written permission of the Allen-Bradley Company, Inc. is prohibited.

ATTENTION and IMPORTANT notes are used throughout this manual to make you aware of safety considerations:

Important: Identifies information that is especially important for successful application and understanding of the produ

CENTERLINE is a registered trademark of Allen-Bradley Company, Inc.

!ATTENTION: Identifies information about practices or circumstances that can lead to personal injury or death, property damage, or economic loss. Attention notes help you to identify a hazard, avoid a hazard, anrecognize the consequences.

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Publication 2100-5.0 - October 1995

Table of Contents

General Information Chapter 1General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Nameplate Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1UL / CSA Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2Short Circuit Rating Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3Series Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4Series Lettering � Units & Sections . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5Receiving, Handling, and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Installation Procedures Chapter 2Location Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1Mounting Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1Securing a Motor Control Center . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1Seismic Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4Joining & Splicing: New Motor Control Centers . . . . . . . . . . . . . . . . . 2-5Joining & Splicing Existing Motor Control Centers . . . . . . . . . . . . . . . 2-5Joining & Splicing NEMA Type 3R Motor Control Centers . . . . . . . . . . 2-5Bus Torque Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7Installing & Joining NEMA Type 1 and Type 12 Pull Boxes . . . . . . . . . 2-7

Conduit and Cable Installation Chapter 3Conduit � Installing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Bottom Entry Conduit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1Top Entry Conduit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Installing Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2Incoming Line Compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2Main Fusible Disconnect and Main Circuit Breaker . . . . . . . . . . . . . 3-2Cable Bracing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3Incoming Line Brace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Installing and RemovingPlug-In Units

Chapter 4Installing Plug-In Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1Removing Plug-In Unit From a Section(1.0 Space Factor or Larger) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1Removing Support Pan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3Removing Plug-In Unit From a Section(0.5 Space Factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4Removing Support Pan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Operator Handle and UnitInterlock

Chapter 5Locking Provisions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

Final Check List BeforeEnergizing

Chapter 6Final Check Before Energizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1


toc�ii Table of Contents � Bulletin 2100 Centerline Motor Control Centers

Energizing Equipment Chapter 7Energizing Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Maintenance Chapter 8Maintenance Checklist. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

Disconnect Switch Contact Lubrication . . . . . . . . . . . . . . . . . . . . . . . 8-3Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4

Maintenance After FaultCondition

Chapter 9

Renewal Parts Chapter 10Order Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1Recommended Spare Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1

Parts Illustrations Chapter 11

Purchased Components andAdditional Instruction Sheets

Chapter 12


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Chapter 1

General Information

General Description CENTERLINE® Motor Control Centers consist of one or more vertical sections containing electromagnetic and/or solid state condevices that are prewired and tested within modular plug-in or frame mounted (hard-wired) units.

Line power is distributed throughout the motor control center throuan isolated bus work structure. The main horizontal bus is locatedthe center of the section. The center-fed 300 ampere rated verticasupplies power to the individual units above and below the horizonbus for an effective 600 ampere capacity, allowing virtually unrestricted unit arrangement.

The 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.Mechanical interlocks prevent unit doors from being opened whileunits are energized.

Nameplate Data Each vertical section has a nameplate located on the vertical wiredoor. On special width sections, the nameplate is located on the section door. See Figure 1.1. Information on nameplates include:

• catalog number / serial number

• series letter of the section

• maximum bus bar voltage and current rating

• section location number

Figure 1.1 Section Nameplate


1-2 General Information

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Each individual plug-in and frame mounted unit also has an identification nameplate. The unit nameplate is located on the inteof the bottom plate of plug-in units or on the interior right hand sidplate of the frame mounted units. See Figure 1.2. The unit namepfor each plug-in or frame mounted unit includes:

• catalog number / serial number

• series letter of the unit

• device size

• all maximum ratings

Figure 1.2 Unit Nameplate

UL / CSA Marking CENTERLINE Motor Control Centers (MCCs) are listed by Underwriter’s Laboratories, Inc. (UL), Standard for Safety UL 845and certified by the Canadian Standards Association (CSA), StandC22–2, No. 14.

Due to standards harmonization, a motor control center may alsocarry the ULc designation. ULc is comparable to CSA certification.

All vertical sections and units listed with UL will carry the UL labelAll vertical sections and units certified to CSA standards will carrythe CSA or ULc mark. Vertical sections and units are labeled

independently. Therefore, it is possible to have combinations of labeled and non-labeled sections and units in the same motor concenter.

Vertical sections and structure options that are UL listed and CSA/ULc certified are marked accordingly. For a section to carry tUL and/or CSA/ULc designation, all of its components must be UL

listed and/or CSA/ULc certified. The UL and/or CSA/ULc designation is an integral part of the section nameplate. See Figure 1.1.

When communicating with Allen-Bradley about a particular motorcontrol center or motor control center unit, the catalog number orserial number and series letter are required to properly identify thequipment.


General Information 1-3

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the

Units and unit options that are UL listed and CSA/ULc certified are

marked accordingly. For a unit to carry the UL label and/or CSA/Uc designation, all of its options must be UL listed and/or CSA/ULc

certified. The UL designation is located on the interior of the bottoplate of plug-in units or on the interior right-hand side plate of frammounted units. See Figure 1.3.

Figure 1.3 UL Label and CSA Designation for Units

Short Circuit Rating Label Motor control center vertical sections that are UL listed and/or CSA/ULc certified will carry a short circuit rating label. The short

circuit rating label for a vertical section is located on the inside of vertical wireway door of standard sections or on the interior right-hand side plate of special width sections. See Figure 1.4.

Figure 1.4 Short Circuit Label for Sections

Motor control center units that are UL listed and/or CSA/ULc certified will carry a short circuit rating label located on the bottomplate of plug-in units or on interior right-hand side plate of frame mounted units. See Figure 1.5.

Figure 1.5 Short Circuit Label for Units



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Series Identification Table 1A gives the history of series letter changes for structures aunits since the original design of the CENTERLINE MCC manufactured in the United States.
!ATTENTION:Read the following information BEFORE adding new sections or units to an existing CENTERLINE Motor Control Center.

Table 1.A Series Identification

SECTIONS

SeriesLetter

Scope Description of Change Date Implementedin U.S.

A � � Original design 2�71

B All Changed terminal blocks 11�76

C All Elimination of external mounting channels 6�79

D All Reverse fed 2192ís and 2193ís 4�81

E All Redesign gasketing 10�82

F All Modified top horizontal wireway pan to accept units with handle interlock intopmost space factor

10�83

G 42K 42K bracing-incorporates new bus support & cover 1�85

G 65K 65K bracing-incorporates new bus support & cover 7�85

H All New hinge design 1�86

J All Changed handle, operating mechanism and circuit breaker to Westinghouse seriesC, 150A, 250A and 400A frame

10�86

K All Changed to new unit grounding system 5�90

L All Changed to new 600A�1200A circuit breaker operating mechanism. 2�96

2100 UNITS

A � � Original design 2�71

B All Sizes Changed terminal blocks 11�76

C All Sizes Changed handle mechanism to Westinghouse MCPs 6�79

D Size 5 Changed from ITE to A�B 400A disconnect 4�81

E All Sizes Changed from Bul. 709 series K starters to Bul. 500 line starters 4�81

F All Sizes Redesign of gasketing, wraparound and unit support pan for Bul. 700 line. 10�82

G All Sizes Redesign of gasketing, wraparound and unit support pan for Bul. 500 line. 10�82

H All Sizes Changed to new door, CB mechanism & control station 4�84

J Size 5 Changed to Bul. 500 series L 10�84

Size 3 Changed to new PCP 100A disconnect 12�88

Size 6 Changed to Bul. 500 series B starters 10�88

K Size 1�5 CB Units &Size 1�2 Disc Units

Changed handle, operating mechanism and circuit breaker to Westinghouse seriesC, 150A, 250A, and 400A frame

10�86

L 21A thru 54A Changed to Bul. 100 line contactors in 21A, 30A, 45A SMC units and originaldesign 24A, 35A,54A SMC units.

11�89

M All Sizes Changed to new unit grounding system and 600A, 800A, and 1200A boltedpressure switch.

5�90

N All Sizes Changed to PCP 200A and 400A disconnect, rerated vacuum Bul. 2112 and 2113and new pilot device offerings.

1�93

P 0.5 SF CB Units2103L, 2113, 2193

External auxiliary on circuit breakers 4�94

Q All Sizes New disconnect external auxiliary contacts and new 600A�1200A circuit breakeroperating mechanism.

2�96

2400 Units

A All sizes Original design 6�90

B 18A, 24A, 30A Changed to Series B, Bulletin 194R, 30A disconnect. 3�92

C 18A, 24A, 30A Changed to (3) Bulletin 800E pilot devices on 0.5 space factor units. 7�92

D All Sizes New disconnect external auxiliary contacts and new 600A�1200A circuit breakeroperating mechanism.

2�96


General Information 1-5

Series Lettering �

Units & Sections

When using sections in conjunction with units of different series letters, consult the MCC Modifications for Unit and Structure Compatibility table below.

!ATTENTION:Read the following information BEFORE adding new sections or units to an existing CENTERLINE Motor Control Center.

Table 1.B MCC Modifications for Unit and Structure Compatibility

If mounted in this

type of

section

⊇ ⊄

Plug-In Units No

Additional

Parts

Required

Requires

Style 1 Unit

Support

Pan

Requires

Style 3

(or 2)

Unit

Support

Pan

Requires

Style 3 Unit

Support Pan

w/ Bushing

Requires

Alternate

Top

Horizontal

Wireway

Pan

Requires

Door

Gasketing

Kit

Requires

Retrofit

Kit

⊆

Requires

Ground

Bus Kit

∈

Space

FactorSeries

� � 2100H�UAJ1 2100H�UA1

2100H�UJ1

2400H�USPA1

2400H�USPJ1

2100H�NA4A1

2100H�NA4J1

2100H�NA4A2

2100H�NA4J2

2100�GJ10 2400H�R1 2400H�GS1

NEMA Type 1Series A�D

1.0 orlarger

A � E 4F � L 4 4 ⊂

M or later 4 4 ⊂ 4

NEMA Type 1Series E�J

0.5 ⊄ N or later 4 4 4

1.0 orlarger

A � E 4 ∈F � L 4

M or later 4

NEMA Type 1Series K or later

0.5 ⊄ N or later 41.0 orlarger

A � L 4 ∈M or later 4

NEMA Type 1 w/gasket or Type 12Series A�D

1.0 orlarger

A � E 4F � L 4 4 ⊂ 4

M or later 4 4 ⊂ 4

NEMA Type 1 w/gasket or Type 12Series E�J

0.5 ⊄ N or later 4 4 4

1.0 orlarger

A � E 4 ∈F � L 4

M or later 4

NEMA Type 1 w/gasket or Type 12Series K or later

0.5 ⊄ N or later 4

1.0 orlarger

A � L 4 ∈M or later 4

⊇ When installing unit in topmost location in vertical section, care must be taken to comply with the National Electrical Code 6′6″ unit handle-to-floor height limitation,as identified in NEC Article 380�8(a) and UL Standard for Safety 845. A unit operating handle extender (2100H�NE1) is available which allows you to comply with thisrestriction. See Publication 2100�3.0 for catalog number and pricing.

⊄ When Bulletin 2100 0.5 space factor units are ordered unassembled or ordered for existing sections, a centralized wiring diagram holder kit (2400H�WDH) should beordered. See Publication 2100�3.0 for catalog number and pricing.

⊂ Required only if series F or later 1.0 space factor or larger Bulletin 2100 unit is installed in topmost location of series A through E vertical sections.⊆ Permits installation of 0.5 space factor plug-in units in existing series E through J Bulletin 2100 vertical sections. See Publication 2100�3.0 for catalog number and

pricing.∈ A wire can be used to ground units rather than installing a ground bus. See Publication 2100�5.12.



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Receiving, Handling, and

Storage

CENTERLINE Motor Control Centers are shipped upright in shipping blocks of one to three front-mounted sections or two to six back-to-back sections as standard. All motor control centers (MCCare mechanically and electrically tested before shipment. Each MCC is provided with a lifting device for handling convenience (lifting device is optional on NEMA Type 3R). The motor control center isbolted to the shipping skid and further packaged to protect it durinupright shipments.

(Refer to Publication 2100–5.5 for receiving, handling, and storaginstructions. This publication is shipped with each MCC, attachedthe outside of the MCC within a layer of clear plastic wrap. For additional information, consult NEMA ICS 2.3.)

!

ATTENTION:Motor control centers are top heavy and front heavy. Tavoid personal injury or structural damage to the motcontrol center, never attempt to lift or to move the motocontrol center by any means other than the methods outlined in Publication 2100–5.5, Receiving, Handling, and Storing Motor Control Centers.


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Chapter 2

Installation Procedures

Location Planning When planning the location for your CENTERLINE Motor Control Center, take the following items into consideration:

• conduits

• busways

• overall height

• alignment with other equipment

• future needs

In addition, the area must be level and the environment must be compatible with the NEMA enclosure rating of the equipment.

Mounting Considerations If the motor control center is equipped with optional external mounting channels or is mounted on a pad, the height to the center othe top handles must be checked for compliance with NEC 380–8and UL Standard 845. If handles are higher than 6´7″ (2000mm), then Unit Operating Handle Extender should be added to these handle(catalog number 2100–NE1).

Securing a

Motor Control Center

Anchor bolts (1/2″(13mm)) may be pre-located and embedded in thMCC foundation prior to installation. Two bolts per vertical sectionfasten the motor control center through its internal mounting anglethe foundation (corner sections require three (3) bolts and 40-inchwide sections require four (4) bolts). See Figures 2.1 through 2.6.

Figure 2.1

Mounting Dimensions for 15� and 20� Deep

Front-Mounted Section


2-2 Installation Procedures

Securing a Motor Control

Center �continued

Figure 2.2Mounting Dimensions for 30� and 40� DeepBack-To-Back Section

Figure 2.3Mounting Dimensions for 25� Deep Back-To-Back Section


Installation Procedures 2-3

a

Securing a Motor Control

Center �continued

Figure 2.4 Mounting Dimensionsfor 15� and 20� Deep x 40� Wide Front-Mounted Section

Figure 2.5 Mounting Dimensions for NEMA Type 3R Section

Figure 2.6 Mounting Dimensions for 15� and 20� Deep Corner Section

Documentation packages shipped with assembled MCCs includeCAD drawing (Form 385E) showing an MCC floor plan layout.



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Seismic Requirements When secured as indicated, (see Figure 2.7 for Bolt Down Securior Figure 2.8 for Weld Down Securing), the CENTERLINE Motor Control Centers (20″ (508mm) only) will withstand seismic activity Zones 0 to 4. Zone 4 is the maximum zone magnitude as definedthe Uniform Building Code (UBC).

Figure 2.7 Seismic Bolt Down Requirements

Figure 2.8 Seismic Weld Down Requirements



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Joining & Splicing:

New Motor Control

Centers

A main horizontal bus splice kit must be installed between shippinblocks of new motor control centers in order to connect the main horizontal bus. In addition, the neutral bus splice kit (if required) athe ground bus splice kit must be installed between shipping blockRefer to 2100–5.1 – Joining & Splicing Vertical Sections for joining and splicing 15″ (381mm) or 20″ (508mm) front-mounted sections and 30″ (762mm) and 40″ (1016mm) deep back-to-back constructio

Joining & Splicing

Existing Motor Control

Centers

A main horizontal bus, a neutral bus (if required), and a ground busplice kit must be installed when adding to existing motor control centers. When adding to existing motor control centers, you must identify the series of the motor control center that you will be addito. If the existing motor control center is Series A or B, you must consult the factory for joining and splicing procedures. When the existing motor control center is Series C or later, refer to Publication 2100–5.1, Joining and Splicing Vertical Sections for joining and splicing 15″ (381mm) or 20″ (508mm) front-mounted sections and 30″ (762mm) and 40″ (1016mm) deep back-to-back construction.

Joining & Splicing

NEMA Type 3R Motor

Control Centers

A main horizontal bus, a neutral bus (if required), and a ground busplice kit must be installed between the internal sections for new aexisting NEMA Type 3R motor control centers. Refer to Publicatio2100–5.1, Joining and Splicing Vertical Sections for splicing Type 3R internal sections.

Refer to Instruction Sheets:Drawing No. 40110–077(shipped with NEMA Type 3R sections) for instructions on joining the NEMA Typ3R external cabinets. Figure 2.9 on the next page is a copy of thidrawing for reference purposes only.



Figure 2.9Joining Instructions for NEMA Type 3R Sections



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Bus Torque Specifications Tighten all bus connections with a torque wrench and socket at intervals established by your maintenance policy. If a torque wrenis not available, tighten until the conical spring washer is flat. Refer to the table below for bus connection torque values.

The torque values can also be found on the information label locaon the interior of the vertical wireway door or on the interior right-hand side plate of frame mounted units or in Publication 2100–5.0.1, CENTERLINE Motor Control Centers Start-Up Procedures.

Installing & Joining

NEMA Type 1 and Type 12

Pull Boxes

When pull boxes are supplied with your motor control center, referPublication 2100–5.28, Installing a Pull Box on a Bulletin 2100 Vertical Section for installing and joining the pull box onto the vertical section.

Description Required Torque

Horizontal to Vertical Bus Connection 38 ft-lb (50 N�m)

Horizontal Splice 38 ft-lb (50 N�m)

Lug Attachment Bolts 45 ft-lb (61 N�m)




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Chapter 3

Conduit and Cable Installation

Conduit � Installing When installing conduit, make sure it is installed so that water andmoisture can not enter or accumulate in the MCC enclosure. Condmust be installed so that they are compatible with the NEMA ratinof the MCC. The conduit should be placed away from the horizonground bus to avoid physical damage. It is recommended that theconduit be positioned so as to minimize cable bending and maintarelative vertical alignment to incoming bus pads and terminals of main fusible disconnects or main circuit breakers.

Bottom Entry Conduit

Prepare the installation site so that the foundation is level. BeforeMCC is installed, place and stub up conduit approximately 2íí (51mm) above floor level. Make sure that all incoming conduit is clear of the horizontal ground bus.

1. For approximate section base dimensions and ground bus locations, refer to Chapter 2, Installation Procedures, Figures 2.1 through 2.6.

2. For approximate bottom entry locations and wiring schemes fomain fusible disconnects, main circuit breakers, and incomingline compartments, refer to Publication 2100–4.2, Mains and Incoming Lines Dimension Reference.

Top Entry Conduit

After the MCC is in place, is leveled, and the sections are joined aspliced, bring conduit into the top of the incoming section.

1. Remove the lifting angle and top plate. Modify the top plate fothe necessary conduit entries. (This method helps guard agaimetal chips falling into the MCC, which can cause serious damage.)

2. Replace the top plate and lifting angle bolts. (This guards agadust or dirt entering the top horizontal wireway.

3. Make sure that all incoming conduit is clear of the horizontal ground bus.

4. For approximate location of the horizontal ground bus mountein the top horizontal wireway, refer to Publication 2100–4.2, Mains and Incoming Lines Dimension Reference.


3-2 Conduit and Cable Installation

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5. For space availability for incoming cables, refer to the documen-tation package shipped with assembled MCCs. This package includes Form 385E, a CAD drawing showing available space

6. For approximate top entry locations and wiring schemes for mfusible disconnects, main circuit breakers, and incoming line compartments, refer to Publication 2100–4.2, Mains and Incoming Lines Dimension Reference.

Installing Cable Install cable when the temperature is above freezing (32°F or 0°C(unless cable is suitable for installation at temperatures below freezing). This will help prevent cable insulation from cracking or splitting.

Motor control centers are rated for use with 75°C cable for currenratings above 100 amperes. Cable must be sized using 75°C coluin NEC Table 310–16. The actual temperature rating of the lugs uis not relevant.

Incoming Line Compartment

Top or bottom entry to the incoming line section bus is straight through to the connection terminals. The vertical bus provides padfor the incoming lugs. The lug selection should be based on the snumber, and type of conductor.

1. Use mechanical screw type lugs when the incoming lines available short circuit current is under 42,000 amperes RMS symmetrical.

2. Use crimp type or compression type lugs when the incoming linavailable short circuit current is above 42,000 amperes RMS symmetrical.

Main Fusible Disconnect and Main Circuit Breaker

Top entry is straight through to the line side of the main fusible disconnect and main circuit breaker. However, for bottom entry, thconnection scheme varies depending on the rating of the main devIn some cases, the bottom entry goes to the top or line side of themain fusible disconnect or main circuit breaker. In other cases, thbottom entry would go straight through to the bottom of the main fusible disconnect or main circuit breaker. This is referred to as “reverse fed.”


Conduit and Cable Installation 3-3

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Mechanical screw type lugs are supplied as standard with all mainfusible disconnects or main circuit breakers. Crimp type or compression type lugs are also available.

Cable Bracing

The CENTERLINE MCC bus work system has been tested and isqualified to withstand maximum short circuit forces exceeding the short circuit withstand ratings for the MCC. Incoming line cables andoutgoing feeder cables also need to be supported to withstand the same short circuit forces.

There are many sizes and types of cables, as well as different meby which the cables can be supported. Acceptable methods are shbelow in Figures 3.1, 3.2, and 3.3.

In Figure 3.1, glass fiber reinforced tape or glass filament tape is used. The taping should be continuous from the point the cables ethe MCC to the point the cables are terminated. It is important thacables are wrapped several times for additional strength. Cable slshould be drawn up during wrapping so that individual cables are supported together by the tape as a single mass.

Figure 3.1 Securing Cables with Glass Tape



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Cable Bracing � continued

In Figure3.2, cables are lashed in a “figure 8”-type configuration using nylon rope. The rope lashing should be continuous from thepoint the cables enter the MCC to the point the cables are terminaOther types of rope lashing may be acceptable. However, cable slshould be drawn up during wrapping so that individual cables are supported together by the rope as a single mass.

Figure 3.2 Securing Cables with Nylon Rope

In Figure 3.3, a hardwood brace (maple hardwood) made for the specific application is used. Holes are bored approximately the sizthe cable diameter. Several bolt holes are also bored the breadth ohardwood brace. The brace is cut in two pieces and is used as a cto secure the cables.

Figure 3.3 Securing Cables with Hardwood


Conduit and Cable Installation 3-5

t the . The d to

Cable Bracing � continued

The through bolts are inserted into the brace and tightened so thacables are held tightly in place. A second form of hardwood brace(not shown) is a yolk type in which the cables are passed throughHoles should be small enough to provide a snug fit for the cables. connectors or lugs are attached to the cables and cables are boltethe terminals.

When using the hardwood bracing method, the cables should be braced every 12″ (305mm) when the incoming lines available short circuit current is below 42,000 amperes RMS and every 6″ (153mm) when the incoming lines available short circuit current is 42,000 amperes RMS or greater.

Incoming Line Brace

Allen-Bradley manufactures an incoming line brace similar to the hardwood clamping type brace. To order an incoming line brace, contact your local Allen-Bradley sales office and ask for assemblynumber 40113–848–01.

Important: Connectors should be installed so that they are in linewith each other and so that there is proper spacing between phases. Make sure that hardware is torquedaccording to the required specifications.




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Chapter 4

Installing and Removing

Plug-In Units

Installing Plug-In Units For unit installation, refer to Publication 2100–5.12, Installing Units with Vertical Operating Handles, and Publication 2400–5.2, InstallingUnits with Horizontal Operating Handles.

Removing Plug-In UnitFrom a Section

(1.0 Space Factor orLarger)

1. Make sure disconnect handle is in the OFF/O position.

2. Turn door latches 1/4 turn.

3. Open door completely.

1. Remove hinge pins – slide up with a screwdriver.

2. Remove control station, if present. Also remove wiring from meters, if present.

3. Hang control station on front of unit using square holes adjaceto top unit latch.

!ATTENTION:Turn off power to unit before installingor removing unit.

It is not necessary to remove the unit door in order to remove a ufrom a section. However, steps 2 and 3 below may still be necessary even when door is not removed.


4-2 Installing and Removing Plug-In Units

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Removing Plug-In Unit

From a Section

(1.0 Space Factor or

Larger) �

continued

1. Swing door to near closed position.

2. Lift door off outward.

1. Disengage captive latches located at front of unit, one at top aone at bottom. 2.0 space factor units and larger have two latcat top.

2. Detach wiring/terminal block(s) from unit. Place wires/terminablocks in line with wiring clearance tunnel.

1. Pull unit forward (outward) using handle provided at lower left unit and the tab at the upper right of unit as finger holds.

It is not necessary to stuff wires/terminal blocks into vertical wireway.


Installing and Removing Plug-In Units 4-3

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Removing Support Pan

1. Pry the plastic retaining clip from the right hand unit support using a screwdriver. This is visible in the vertical wireway.

2. Lift the right side of the support pan approximately 4″ (102mm).

1. Pull right side of support pan forward to release from left rear sloon structure.

2. Push back on left side of support pan until support pan is freefrom structure.NOTE: Vertical sections may be supplied with plug-in stab opening protective caps, manual shutters, or automatic shutteRefer to Step 3 if any of these options are supplied.

3. Carefully install protective caps or close manual shutters afterunit is removed. Automatic shutters will close as units are removed.



Removing Plug-In Unit

From a Section

(0.5 Space Factor

1. Make sure disconnect handle is in the OFF/O position.

2. Turn door latches 1/4 turn.

3. Open door completely.

1. Remove hinge pins – slide up with a screwdriver.

2. Swing door to near closed position.

3. Lift door off outward.

1. Detach wiring/terminal block from unit.

2. Place wiring/terminal block in vertical wireway to right of unit.

Door removal is not necessary when removing a unit.


Installing and Removing Plug-In Units 4-5

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-

Removing Plug-In UnitFrom a Section

(0.5 Space Factor �continued

1. Push latch mechanism to the left with right hand.

2. Pull unit forward (outward) with left hand using the left top por-tion of the disconnect handle flange as finger hold.

Removing Support Pan

1. Pry the plastic retaining clip from the right hand unit support using a screwdriver. This is visible in the vertical wireway.

2. Lift the right side of the support pan approximately 4″ (102mm).

1. Pull right side of support pan forward to release from left rear sloon structure.

2. Push back on left side of support pan until support pan is freefrom structure. NOTE: Vertical sections may be supplied with plug-in stab opening protective caps, manual shutters, or automatic shutters. Refer to Step 3 if any of these options are supplied.

3. Carefully install protective caps or close manual shutters afterunit is removed. Automatic shutters will close as units are removed.




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Chapter 5

Operator Handle and UnitInterlock

The flange operator handle, for either a disconnect or circuit breais an integral part of the unit insert. No adjustment is required. Theoperator handle is interlocked with unit door as outlined by UL 84

When the unit door is closed and the operator handle is in the ONposition, the defeater located just below (1.0 space factor or largerunits) or just to the right (0.5 space factor units) of the pivot point of the handle, must be deliberately operated to be able to open the udoor. See Figure 5.1 and 5.2.

Figure 5.1Operating Handle Defeater for 1.0 Space Factor and Larger

Figure 5.2Operating Handle Defeater for 0.5 Space Factor


5-2 Operator Handle and Unit Interlock

/O

.4.

When the unit door is open and the operator handle is in the OFFposition, the defeater lever must be held up (1.0 space factor and larger units) or held to the left (0.5 space factor units) in order to move the operator handle to the ON/I position. See Figure 5.3 & 5

Figure 5.3Defeater Lever for 1.0 Space Factor and Larger

Figure 5.4Defeater Lever for 0.5 Space Factor


Operator Handle and Unit Interlock 5-3

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6.

Locking Provisions To lock the small and medium operator handle in the OFF/O position, put the shackle of the lock through the opening of the operator handle. The opening can accommodate up to three (3) padlocks. See Figure 5.5.

Figure 5.5Locking Small and Medium Handle in OFF/O Position,1.0 Space Factor or Larger (Smaller Handle Shown)

The 0.5 space factor units utilize the small handle. The small hancan be locked in the OFF/O position the same way the small handfor 1.0 space factor and larger units can be locked. See Figure 5.

Figure 5.6Locking Small Handle in OFF/O Position,0.5 Space Factor


To lock the small operator handle in the ON/I position, drill out thetop pre-located hole to 3/8″ (9.5mm) diameter maximum, and padlock. See Figure 5.7 and 5.8.
Figure 5.7Locking Small Handle in ON/I POSITION,1.0 Space Factor and Larger

Figure 5.8Locking Small Handle in ON/I Position,0.5 Space Factor

!ATTENTION: Locking an operating handle in the ON/I position may be in conflict with local codes and emergency shut down requirements.

Drill Out

Drill Out



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.

To lock the medium operator handle in the ON/I position, drill out tbottom pre-located hole to 3/8″ (9.5mm) diameter maximum, and padlock. See Figure 5.9.

Figure 5.9Locking Medium Handle in ON/I Position

To lock the large operator handle in the OFF/O position, put the shackle of the padlock through the opening of the operator handleThe opening can accommodate up to three (3) padlocks.See Figure 5.10.

Figure 5.10Locking Large Handle in OFF/O Position


Drill Out



To lock the large operator hand in the ON/I position, drill out the pre-located hole to 3/8″ (9.5mm) diameter maximum, and padlock. See Figure 5.11.

Figure 5.11Locking Large Handle in ON/I Position


Drill Out



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The unit interlock, provided with each 1.0 space factor or larger plug-in unit, prevents the unit from being plugged into or unpluggeout of a vertical section with the operator handle in the ON/I positioThe unit interlock also provides a means by which the unit can be“locked out with a padlock” preventing installation of the unit into avertical section. The lockout feature of the unit interlock can be uswith the operator handle in either the ON/I or OFF/O position. See Figure 5.12.

Figure 5.12Unit Interlock, 1.0 Space Factor or Larger



The unit interlock provided with the 0.5 space factor units also prevents the unit from being plugged into or plugged out of a vertical section when the operator handle is in the ON/I position. Just as with the unit interlock for 1.0 space factor and larger units, the interlock mechanism for the 0.5 space factor unit has a lockout feature. This lockout can be used in either the ON/I or OFF/O position. See Figure 5.13.

Figure 5.13Unit Interlock, 0.5 Space Factor


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Chapter 6

Final Check List Before

Energizing

The following procedure is provided as general guidance for a finacheck before energizing a newly installed CENTERLINE Motor Control Center. Use this final check list in conjunction with procedures listed in Publication 2100–5.0.1, CENTERLINE MotorControl Centers Start-Up Procedure.

Final Check Before Energizing

1. Remove all blocks or temporary holding means used for shipment from all component devices in the motor control center.

2. Check enclosure and units to see that they have not been damso as to reduce electrical spacings.

3. Check the motor control center and verify that it is installed properly, making sure that it is level, supported, and anchorednecessary or required).

4. Check the integrity of splice and other accessible bus connections. Torque values can be found on the information lalocated on the interior of the vertical wireway door or on the interior right-hand side plate of frame mounted units.

5. Check that all ground connections are made properly.

6. Check field wire for proper size. Proper field wire sizing criterican be found on the information label located on the interior othe vertical wireway door or on the interior right-hand side platof frame mounted units.

7. Check field wired circuits for agreement with wiring diagrams,and make sure the wiring is clear of live bus areas.

8. Make certain that all incoming and outgoing power wiring is secure and braced to withstand the effects of a fault current. Also make sure that the conduit and/or cabling is well supported.

!ATTENTION: To ensure the safety of personnel performing the Final Check, make sure that the motorcontrol center remote power source(s) is disconnecteand locked in the OFF/O position.


6-2 Final Check List Before Energizing

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9. Check to make sure that the voltage and horsepower ratings omotor agree with the ratings stamped on the unit nameplate ofunit to which it is connected. The unit nameplate is located on interior of the bottom plate of plug-in units or on the interior right-hand side plate of frame mounted units.

10. Set any adjustable current and voltage trip mechanisms to theproper values. (Circuit breaker trip settings are listed in Publications 2100–2.3.1 and 2100–2.3.2.)

11. Where applicable, install power circuit fuses in the fusible switches compliant with local electrical code application requirements. Make sure that fuses are completely inserted inthe fuse clips.

12. Where applicable, timers should be set for their proper intervasettings.

13. Make sure that the overload relays or heater elements are selected, installed and/or adjusted to the relative full load currshown on the motor nameplate.

14. Manually exercise all switches, circuit breakers, their respective operators, interlocks and any other operating mechanisms to make certain they operate freely.

15. Check all current transformers to make sure that they are wiretheir respective devices. Where applicable, remove shorting bfrom the secondary of current transformers and make connectto their respective devices.

16. To avoid injury or possible damage to equipment, check and make sure that all barriers and parts that may have been remoduring installation have been reinstalled.

17. Before closing the enclosure and/or the individual units, removall tools, metal chips, scrap wire, and other debris from the motocontrol center interior. If there is an accumulation of dust or dirclean out by using a brush, vacuum cleaner or clean, lint-free rags. Do not use compressed air, because it will redistribute contaminants onto other surfaces.

!ATTENTION:Do not operate a current transformerwith its secondary open.


Final Check List Before Energizing 6-3

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18. Conduct an electrical insulation resistance test to make sure tthe motor control center and field wiring are free from short circuits and grounds. Conduct this test using an insulation resistance tester (megger) with a potential of 500–1000 volts.

This test should be conducted phase-to-phase and phase-to-neutral in the motor control center. This test should bconducted with all of the switches or circuit breakers opened othe OFF/O position.

Electrical Insulation Resistance Test

• Typical insulation resistance values are 50 megaohms or greater.

• Next, check the field wiring. For example, motor cables and/or incoming line cables.

• Note that the insulation resistance values are affected by humidity or dampness that may cause a considerably loweinsulation resistance reading. If this is the case and the instion resistance values are below 1 megaohm, or the motorcontrol center has been stored in a damp or humid area, itrecommended that the equipment be dried out.

• Dry out the motor cables by injecting a low voltage current

• Use space heaters to dry out the motor control center.

• When the equipment is dry, repeat the insulation resistanctest. The minimum value for insulation resistance on a newinstallation at start-up or energizing is 1 megaohm.

19. Make sure that all latches are secure. Close and latch all doormaking certain that no wires are pinched. Turn all unit disconnects or circuit breakers to the open or OFF/O position before energizing the motor control center.

!ATTENTION:Equipment that is sensitive to high test voltages such ameters, solid state devices, and capacitor units, shoube isolated.


6-4 Final Check List Before Energizing


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Chapter 7

Energizing Equipment

The following procedure is provided as general guidance for energizing a newly installed CENTERLINE Motor Control Center after the Final Check procedure has been completed, (see ChapteFinal Check List Before Energizing). Use this procedure in conjunction with procedures listed in Publication 2100–5.0.1, CENTERLINE Motor Control Centers Start-Up Procedure.

Energizing Procedure

1. Review any additional instructions supplied for the proper operation of special units such as drives, Smart Motor Controll(SMC™), etc., with appropriate personnel.

2. Make sure that there is no load on the motor control center whit is energized. Turn off all of the main and unit disconnect handles. Also, make sure any associated remote devices are turned off.

3. Energize the motor control center remote power source.

4. Energize the main devices followed by the feeder devices andthen the branch circuit devices. Always energize from the souof the system, working toward the loads.

5. After all of the disconnect devices have been closed, loads suas lighting circuits, motor starters, contactors, etc. may be energized.

A. When power factor correction capacitors are energized alowith the motor windings and the start-up procedure requirethat the respective motors be jogged or inched, temporarildisconnect the power factor correction capacitors.

B. Verify that any acceleration times are within specific application specifications.

!ATTENTION: Energizing a motor control center for the first time is potentially dangerous. Serious damagand personal injury can result when the power is turneon. Therefore, only qualified personnel should energizthe equipment.


7-2 Energizing Equipment


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Chapter 8

Maintenance

A periodic maintenance program should be established for your motor control center to avoid unnecessary downtime due to negleHow frequently you service your MCC will depend upon the equipment usage and the environment in which it operates. The following is a suggested checklist.

Maintenance Checklist

1. Inspect the motor control center at least once per year.

2. Carefully inspect doors and enclosure sides for evidence of excessive heat. Generally, any temperature during operation tthe palm of your hand can not stand for approximately 3 secomay indicate a problem.

3. Check for moisture or any signs of dampness or drippings insthe motor control center. Condensation in conduit or dripping from an outside source is a common cause of motor control centerfailure. Eliminate any source of moisture. Seal off conduit, cracks, and openings that have allowed and/or could allow moisture to enter the MCC enclosure. Dry or replace and cleainsulating material that is damp or wet or shows signs of moisture. Check devices such as contactors, circuit breakers,disconnect switches, relays, pushbuttons, etc., for wetness or signs of moisture, corrosion, or contamination. Replace damaor malfunctioning parts. Make sure that the source or cause of wetness or contamination is identified and eliminated.

4. Check the integrity of bus splice connections. Bus splices caneasily identified by the label located on the interior of the verticwireway door or on the interior right hand side plate of frame mounted units. Recommended torque values can be found oninformation label located on the interior of the vertical wirewaydoor or on the interior right-hand side plate of frame mounted units, and in Chapter 2, Installation Procedures – Bus Torque Specifications or in Publication 2100–5.0.1, CENTERLINE Motor Control Centers Start-Up Procedure.

!ATTENTION:

De-energize motor control center before servicing.


8-2 Maintenance

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Maintenance Checklist � continued

NOTE: The factory-made power connections are tightened bycomputer-controlled torquing system. The following connectioshould never require re-torquing: Vertical to horizontal bus connections, power conductor to horizontal bus connections. These factory-made power bus connections do not require servicing for the life of the motor control center.

5. Air filters for fans should be periodically cleaned or changed, depending on the environmental conditions.

6. Check for proper function and freedom of movement (no stickior binding) of the disconnect handle operating mechanisms antheir defeater mechanisms. Replace broken, deformed, malfunctioning, or badly worn parts or assemblies.

7. Inspect bus stab connections for wear or corrosion. Wear andcorrosion can cause increased resistance causing an increasetemperature of the contact point which can lead to failure. Replace bus stabs if wear or corrosion is excessive. Lubricate

stabs with NO–OX–ID® grease (catalog number 2100H–N18 or 2100H–N18T) before replacing the unit into the section.

8. Inspect current carrying parts such as fuse clips, knife blades disconnects, and line and load terminals of devices for discoloration, corrosion or other signs of abnormalities.

9. Check locking or interlocking devices for proper working condition and capability of performing their intended functions. Adjust, repair, or replace any device if necessary.

10. Check contacts for excessive wear and dirt accumulation. Vacuum or wipe contacts with a soft cloth to remove dirt. Contacts are not harmed by discoloration and/or slight pitting.Contacts should never be filed, as this would reduce the life of the contacts. Contact spray cleaners should not be used, as they csticking on magnetic pole faces or in operating mechanisms, interfering with the electrical continuity of the contacts. Contacts should be replaced only after the silver has become badly worAlways replace contacts in complete sets to avoid misalignmeand uneven contact pressure.

11. Check for loose connections on power and control circuit terminals. Loose connections can cause overheating or hot spthat could lead to equipment malfunction or failure. Replace adamaged parts or wiring.


Maintenance 8-3

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Maintenance Checklist � continued

12. Check coils for evidence of overheating – cracking, melting, oburning of insulation. If there is evidence of overheating, the cmust be replaced. When a coil needs to be replaced, check forcorrect the overvoltage or undervoltage conditions that are causing the coil failure. Be sure to clean any residue of meltedcoil insulation from other parts of the device, or replace such parts.

13. Check all pilot lights. Replace burned out lamps and/or damaglenses.

14. Check all fuses. When replacement is necessary, always instathe same type and rated fuse that was originally furnished withthe motor control center.

15. Remove accumulated dust and dirt by vacuuming. Do not use compressed air, as it may contain moisture and blow debris elsewhere within the enclosure.

16. Refer to individual user policies for periodic servicing of MCCs,and refer to NFPA 70B, Electrical Equipment Maintenance.

Disconnect Switch

Contact Lubrication

The disconnect switches used within the MCC units are supplied wproper contact lubrication, and under normal operating conditionsshould not require further lubrication. However, if a switch that is used frequently becomes difficult to operate or is located in a highcorrosive or caustic environment, it may require lubrication.

The lubricant to be used is NO–OX–ID® Compound (catalog number 2100H–N18 for a 1 pint can or 2100H–N18T for a 1 ounce tube.) obtain the lubricant, contact your local Allen-Bradley sales office, distributor, or Packaged Control Products at Allen-Bradley, Company, Inc.

!ATTENTION: To prevent injury or death to personnellubricating disconnect switch contacts, make sure thathe motor control center remove power source(s) is disconnected and the respective disconnect(s) is lockin the OFF/O position. In the case of a plug-in unit, remove the unit from the motor control center.

ATTENTION: To prevent personal injury or damage to equipment, make sure that the unit handle operatorin the OFF/O position before removing the unit.


8-4 Maintenance

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Disconnect Switch

Contact Lubrication �

continued

Instructions

1. For Plug-In ConstructionIf disconnect switch needing lubrication is housed in a plug-in unit, remove the plug-in unit from the motor control center. (For removal of unit, refer to Chapter 4, Unit Removal and Installation.)For Frame Mounted Construction:If disconnect switch needing lubrication is housed in a frame mounted unit, turn off the power source(s) to the motor controcenter.

2. Remove the line guard cover and retain.

3. Remove and retain the arc hood. This allows access to the disconnect’s stationary contacts.

4. Generously apply the compound (sufficient enough to cover wa noticeable film) to both sides of the movable contact blades ato the adjacent insides of the stationary contacts.

5. Re-install the arc hood that was removed in Step 3.

6. Re-install the line guard cover that was removed in Step 2.

7. If the lubricated disconnect switch is housed in a plug-in unit, reinstall the unit. (For installation of unit, refer to Publication 2100–5.12, Installing Units with Vertical Operating Handles).

NOTE: If the reasons for lubrication are due to corrosion (for example, a sulfur environment), replacing the unit disconnect mayrequired to avoid overheating conditions. Lubrication may reduce problem short term; however, replacing the disconnect switch woube the correct and long term solution.

!ATTENTION: To prevent injury or death to personnellubricating disconnect switch contacts, make sure thathe motor control center remote power sources (s) is disconnected and the respective disconnects(s) is lockin the OFF/O position.


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Chapter 9

Maintenance After Fault

Condition

The opening of the short circuit protective device (such as fuses ocircuit breakers) in a properly coordinated motor branch circuit is indication of a fault condition in excess of operating overload. Thisfault condition must be corrected. Such a condition can cause damageto control equipment. When a fault occurs, de-energize the motorcontrol center, repair the cause of the fault, and inspect all equipmthoroughly per NEMA Standards Publication No. ICS 2.2–1983 PaICS 2–302 Maintenance of Motor Controllers After A Fault Condition. Make necessary repairs or replacements prior to re-energizing the equipment. Be sure that replacements are of prorating and are suitable for the application.

In certain cases, it may be necessary to conduct an electrical insulation resistance test (megger). For procedure, refer to Chapter 6Final Checklist Before Energizing.

!ATTENTION: Disconnect all power sources to the motor control center before diagnosing the cause of thfault condition.


9-2 Maintenance After Fault Condition


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Chapter 10

Renewal Parts

A Renewal Parts Stocking Program for your motor control center recommended in conjunction with a maintenance program. This isimportant for minimizing expensive downtime and when repair is critical.

Factors to consider when developing an effective Renewal Parts Stocking Program:

1. The frequency of “ON–OFF” cycling and the amount of “ON” ooperating time.

2. The need for continuous operation, inherent design limitationsenvironmental considerations, etc.

3. The total number of “like” devices supplied as original equipmewithin the motor control center.

4. The individual user policies governing spare parts.

Consideration should also be given to stocking complete units whthe job site is in an area remote from a distributor or district sales office or when it is critical to maintain continuous operation of a system.

Order Information The following information is required when ordering renewal parts

• description of part or unit

• series letter

• part or catalog number

• quantity

• shipping address

• motor control center serial number and complete nameplate d

Refer to Chapter 11, Parts Illustration, for pictures and descriptions ocommon section and unit parts.

Recommended Spare

Parts List

The following is an example of a typical Recommended Spare PaList that can be supplied with your motor control center, upon request. Lists contain spare part information specific to the particumotor control center that was ordered. NOTE: The information in the following example is accurate at timof release.


10-2 Renewal Parts

Figure 10.1

Sample of Renewal Parts List � Page 1 through 4


Renewal Parts 10-3

Figure 10.2 � continued

Sample of Renewal Parts List � Page 5 through 7


10-4 Renewal Parts


Chapter 11

Parts Illustrations

Figure 11.1 Typical Section Construction


11-2 Parts Illustrations

Figure 11.2

Typical Unit Construction

(shown � Bulletin 2113 Size 1 with Control Transformer)


Parts Illustrations 11-3

Figure 11.3

Typical 0.5 Space Factor Unit Construction


11-4 Parts Illustrations


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Chapter 12

Purchased Components

and

Additional Instruction Sheets

When equipment such as transformers, metering, PLCs, drives, is supplied with the motor control center, specific manuals and data sheets are also supplied. These manuals and data sheets should read and understood before installing and operating the motor concenter. Refer to the unit locations of these devices for their manuaand/or data sheets.


12-2 Purchased Components and Additional Instruction Sheets


Index

B,

Bus Torque Specifications, 2-7,

C,

Cable - Installing, 3-2,Cable Bracing, 3-3,Incoming Line Compartment, 3-2,Main Fusible Disconnect and Main Circuit Break-

er, 3-2,Conduit - Installing, 3-1,

Bottom Entry Conduit, 3-1,Contact Lubrication-Disconnect Switch, 8-3,

Lubrication Instructions, 8-4,

D,

Disconnect Switch Contact Lubrication, 8-3,

E,

Energizing Procedure, 7-1,

F,

Fault Condition - Maintenance After, 9-1,

I,

Installation,Location Planning, 2-1,Mounting Considerations, 2-1,Securing a Motor Control Center, 2-1,

Mounting Dimensions,

15� & 20� Deep Corner Section, 2-3,

15� & 20� Deep Front Mounted, 2-2, 2-3,

15� & 20� Deep x 40� Wide

Front-Mounted, 2-3,

25� Deep Back-To-Back, 2-2,

30� & 40� Deep Back-To-Back, 2-2,

NEMA Type 3R Section, 2-3,

Instruction Sheets,Additional, 12-1,Install Units with Horizontal Handles, 4-1,Pub. 2100-5.0.1 - MCC Start-Up

Procedures, 2-7,Publ. 2100-5.1 - Joining & Splicing Vertical

Sections, 2-5,

J,

Joining & Splicing,Existing MCCs, 2-5,NEMA Type 3R MCCs, 2-5,New MCCs, 2-5,

L,

Locking Provisions, 5-3,

M,

Maintenance, 8-1,Checklist, 8-1,

N,

Nameplate Data, 1-1,Section Nameplate, 1-1,Unit Nameplate, 1-2,

O,

Operator Handle & Unit Interlock, 5-1,Defeater Lever for 0.5 Space Factor, 5-2,Defeater Lever for 1.0 Space Factor & Up, 5-2,Locking Handle (Small) - 0.5 Space Factor, 5-3,Operating Handle Defeater for 0.5 Space

Factor, 5-1,Operating Handle Defeater for 1.0 Space

Factor & Up, 5-1,


I�2 Index

P,

Parts Illustrations,1.0 Space Factor Unit, 11-2,Section, 11-1,

Plug-In Units,Installing into Structure, 4-1,

Plug-In Units - Removing from a Section,0.5 Space Factor, 4-4, 4-5,1.0 Space Factor or Larger, 4-1,

R,

Receiving, Handling, and Storing MCCs, 1-6,

S,

Seismic Requirements,Bolt Down Requirements, 2-4,Weld Down Requirements, 2-4,

Series Identification, 1-4,Series Lettering - Units & Sections, 1-5,Short Circuit Label for Sections, 1-3,Short Circuit Label for Units, 1-3,Support Pan Removal, 4-3,

T,

Type 1 Pull Boxes - Installing & Joining, 2-7,Type 12 Pull Boxes - Installing & Joining, 2-7,

U,

UL / CSA Marking, 1-2,



Supersedes Publication 2100-5.0 - August 1987 1997 Rockwell International. All Rights Reserved. Printed in USA

Documents

2100-5.0-Oct1995 (CenterLine2100 MCC Instruction Manual)