Model 6 Motor Control Centers – Instruction Bulletin

Hazard Categories and Special Symbols
- Please Note
Section 1—About the Model 6 Motor Control Center
- 100 Millisecond, Arc-Rated MCC, Upstream Over-Current Protection Device (OCPD) Requirements
- Schneider Electric Literature Lists
Section 2—Safety Precautions
Section 3—Receiving, Handling, and Storing the MCC
- Receiving the MCC
- Handling the MCC
  - Equipment Needed
- Moving the MCC
  - Plug-In Units
- Storing the MCC
Section 4—Installing the MCC
- Locating the MCC
  - Space Requirements
  - Aligning the MCC
- Joining Type 1, Type 1 Gasketed, and Type 12 Sections
  - Positioning the MCC
  - Joining Corner Channels
  - Joining Section Side Channels
  - Securing Structures to the Floor
    - Non-Seismic Applications
- Seismic Certification of Model 6 MCCs
  - Introduction
  - Responsibility for Mitigation of Seismic Damage
  - Tie-Down Points for Rigid, Floor-Mounted Equipment
  - Anchorage Assembly Instructions
  - Welded Anchorage
  - Securing Structures to Floor—Seismic Hazard Designated Locations
    - Seismic Tie-Down Access for ArcBlok with Bottom-Feed, Line-Side, Isolation Cable Vault
  - Securing Structures to Wall—Seismic Hazard Designated Locations
- Splice Gaskets for Type 1 Gasketed, Type 1 Sprinkler-Resistant, and Type 12 Enclosures
- Splicing Without P Gasketing
- Splicing With P Gasketing
  - Splice to Existing Left
  - Splice to Existing Right
- Joining New Style Type 3R Enclosures to Old Style Type 3R Enclosures
  - Joining to the Left Side of an Existing Type 3R MCC Enclosure.
  - Joining to the Right Side of an Existing Type 3R MCC Enclosure
  - Joining Type 3R Sections
- Joining Type 1 Sprinkler-Resistant Sections
- Splicing Power Bus for Type 1 and Type 12 Enclosures
  - Power Bus Splicing MCCs with Single Bar/Phase Splice Kit (600 A and 800 A, Copper Horizontal Bus, 65,000 A Short Circuit or Less, Shipped after August 2012)
  - Power Bus Splicing MCCs with Multiple Bar/Phase Splice Kit
- Splicing Power Bus in Type 3R Enclosures
- Power Bus Splicing of 2500 A Bus with 100,000 A Short Circuit Rating
- Splicing Offset or 3000/3200 A Horizontal Bus (Left Side of Structure Only)
- Ground Bus Splicing for Type 1, Type 12, and Type 3R
- Ground Bus Splicing for Bottom-Feed ArcBlok Main Sections
- Conductor Entry
  - Conductor Entry for Line-Side Isolation Cable Vaults with ArcBlok
- Incoming Cable Lacing Instructions—Line-Side Isolation Cable Vault
- Vent Hood Installation
- Pull Box Installation
  - Standard Low Voltage MCC Pull Box
  - Vented Low Voltage MCC Pull Box
  - Line-Side Isolation, Low Voltage MCC Pull Box
  - Sprinkler-Resistant Low Voltage MCC Pull Box
- Load and Control Wiring
- Crimp Lug Cable Assembly for Cabled Disconnect Unit Installation
- Cable Connection Torque Values
- Component Instructional Information
- Modifying Fuse Clip Locations
Section 5—Operation
- Pre-operation Checklist
- Energizing the MCC
Section 6—Maintaining the MCC
- Inspecting the Enclosure
- Bus Bars and Incoming Line Compartments
  - Initial Maintenance
  - Periodic Inspection and Maintenance
- Maintaining the Control Unit
- Removing the Control Unit
- Removing the Compac^™ 6 Control Unit
- Tests and Maintenance Performed with the Control Unit Removed
- Reassembly
- Insulation Test
- Maintenance After an Electrical System Event Has Occurred
- Maintenance for Type 1 Sprinkler-Resistant Enclosures
  - Water-Soaked MCCs
  - Water-Sprayed or Splashed MCC (Clean Water Only)
    - Inspection and Cleanup of Clean Water Sprayed or Splashed MCC
Section 7—Motor Logic^™ Solid-State Overload Relay (SSOLR)
- Motor Logic Retrofit Applications
- Adjustment
Section 8—Mag-Gard^™, PowerPacT^™, and TeSys^™ Motor Circuit Protector and Circuit Breaker Settings
- Adjusting Mag-Gard, PowerPacT, or TeSys Magnetic Trip Setting
- Adjusting PowerPacT M- and P-Frame Circuit Breakers in Motor Control Center Motor Starter Units
Section 9—iMCC
- iMCC Overview
- Networks/Communications Overview
- Connecting the iMCC Cabling System
- Network Cabling
- Cables Between Shipping Splits
- Load Cables
- Communication Networks
- Bridges/Repeaters
- Terminating Resistors
- Direct Cable Connection
- Operation
- Pre-operation Checklists
  - MCC Structure
  - iMCC Communications
- Energizing the MCC
  - Motor Logic Plus Local Programming
  - Motor Logic Plus Remote Programming
- TeSys^™ T Motor Management Controller
- TeSys T Retrofit Applications
- Applications Requiring Turns
- TeSys T Local Programming
  - Configuring with HMI
  - Configuring with PowerSuite^™ Software
  - Configuring with SoMove Software
- PowerLogic ION Meter
- PowerLogic^™ Power Meter Series 800, 5500, 8000
- PowerLogic Circuit Monitor
- Altivar^™ 61/71
- Altivar 630/930
- Altistart^™ 48
- Altivar 480
- PowerPacT^™ Circuit Breakers with MicroLogic^™ Trip Units
- Device Addressing
- Software
- Network Security
Section 10—Expansion
- Ordering Information
- Modifying MCC Units
- Installing Additional MCC Units
Section 11-Troubleshooting
Section 12—Insulation Resistance
Section 13—Thermal Overload Unit Selection
Section 14—Circuit Breaker and Fusible Switch Replacement
Section 15—Installation and Maintenance Log
Appendix A—Removal and Installation of Horizontal Bus Barrier Panels
- Removal
- Installation
- Fixed Barrier
  - Removal
  - Installation
Appendix B—Non-Conductive Horizontal Bus Barrier Retrofit Kit
- Remove Existing Components
- Install the Retrofit Kit
- Replace Components
Appendix C—Automatic Vertical Bus Shutter
- Introduction
- Installation—Style 1
- Removal—Style 1
- Installation—Style 2
- Removal—Style 2
- Operation—Styles 1 and 2
  - Inserting a Unit
  - Removing a Unit
Appendix D—Technical Support

80459-641-01, Rev. 09

Applications Requiring Turns

There are some applications that require more than one wiring turn through the TeSys T controller.

All NEMA Size 4 applications require three passes through separately mounted current transformers (CTs) rated 300:5.
Certain two-speed constant or variable torque applications require two passes through the TeSys T conductor (CT) windows through which the motor leads must pass before being connected to the load terminals on the contactor (T1, T2, and T3). These two-speed constant or variable torque applications are for NEMA Size 1 (3/4 HP, 480 V) and all NEMA Size 2. By allowing multiple passes (turns) of the load leads through these CT windows, protection can be provided for motors with a full-load current lower than the specified operating range. Two passes of the load leads through each window effectively increase (by a multiple of two) the current that the TeSys T senses.
All three conductor windows must have the same number of passes, looped in the same direction, for the TeSys T to operate properly.
Passes should begin from the load side of the TeSys T through the CT window, and return via the windows provided between the baseplate and the TeSys T. The final pass terminates on the load side of the contactor.
MCC units requiring multiple passes are factory supplied pre-looped with #14 wire and interposing terminal blocks. Refer to TeSys T Retrofit Applications for information concerning retrofit.

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