Leviton 6M Series Product Description

Leviton 6M Series Product Description

Mini meter multiple meter units

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Models beginning with 6M, 6L or 6X
Mini Meter Multiple Meter Units (MMUs)
Product Description
Technical Specifications
Installation Instructions
th
February 28
, 2013

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Summary of Contents for Leviton 6M Series

  • Page 1 Models beginning with 6M, 6L or 6X Mini Meter Multiple Meter Units (MMUs) Product Description Technical Specifications Installation Instructions February 28 , 2013...
  • Page 2: Table Of Contents

    3.5.2 Conduit Openings ......................9 3.5.3 Mounting Procedure and Conduit Installation............10 3.6 Installation of Voltage Lines.....................10 3.7 Installation of Current Transformers ..................11 3.8 Testing the Installation......................17 3.9 Securing the Enclosure......................17 4. Maintenance............................18 5. Troubleshooting/FAQ..........................18 6. Contact Information..........................19 Leviton Manufacturing Co., Inc. Contents...
  • Page 3: List Of Figures

    1. Product Description General Description The Leviton Mini Meter is a self-powered, current transformer (CT) rated electronic kilowatthour (kWh) meter designed for permanent connection to an electrical service. Mini Meters come in single element (2-wire) and dual element (3-wire) configurations.
  • Page 4: Meter Certifications

    Figure 1 below shows the dimensions of a single Mini Meter or Epoxy Encapsulated case and cover. 1.5.1 Enclosures MMU Enclosures are manufactured by BUD Industries, Inc (www.budind.com). Specification sheets are available from their website, part numbers are as follows:  Medium Enclosure: NBB-15243 Leviton Manufacturing Co., Inc.
  • Page 5: Electrical Specifications

    Rated Relative Humidity Terminal Blocks: Dinkle/International Connector 4.4 in-lb of torque maximum EK508-11P or equiv. Table 1: Electrical and environmental specifications Product approved for use with included Leviton Current Transformers, as follows:  400A  200A Leviton Manufacturing Co., Inc.
  • Page 6: Input/Output Connections

    CT1 : X1 Current Transformer input, CT1. Colored wire of CT 1 CT1 : X2 Current Transformer input, CT1. White wire of CT1 CT2 : X1 Current Transformer input, CT2.Colored wire of CT2 (7B and 5B models only) Leviton Manufacturing Co., Inc.
  • Page 7: Table 2: I/O Connections

    +12 VDC 12 VDC output; current rating is 3 mA max. (MMS and MMD models only) Table 2: I/O connections *Recommend Leviton mechanical counter (1 kWh models), (0.1 kWh models), or equivalents LED Indicators Description Power LED (green) Illuminates when the meter is supplied with proper voltage...
  • Page 8: Installation Instructions

    The following section contains installation and wiring instructions for the Leviton Mini Meter MMUs. If technical assistance is required at any point during the installation, contact information can be found at the end of this manual. Leviton is not responsible for damage to the meter caused by incorrect wiring.
  • Page 9: Preparation

    The MMU should not be positioned in a manner that makes it difficult to operate the disconnecting device. Ensure that the CT and voltage lead lengths (and conduit lengths) are capable Leviton Manufacturing Co., Inc.
  • Page 10: Mounting Location

    3. The shaded area indicates appropriate drill area for conduit holes. If possible, holes should be centered along the striped black line. No part of the conduit hole should extend outside of the shaded area. Figure 4: Using the conduit template Leviton Manufacturing Co., Inc.
  • Page 11: Mounting Procedure And Conduit Installation

    3.6 Installation of Voltage Lines Note: A panel schedule is highly recommended for factory pre-wiring of MMU internal voltage connections. For Small to Medium Enclosures 1. Verify that branch circuit fuse specifications meet local electric codes. Leviton Manufacturing Co., Inc.
  • Page 12 5. For connections to the voltage terminal block (see example in Figure 8), strip wiring to approximately .300 inches and connect to the appropriate terminals. Wires should be tightened so that they are held snuggly in place, but do not to over-tighten, as this may compress and weaken the conductor. Leviton Manufacturing Co., Inc.
  • Page 13: Installation Of Current Transformers

    ‘in phase’ for accurate readings (e.g. CT1 on Line 1, CT2 on Line 2).  For 3 Ph 4-wire electrical panels, see Figure 12 and follow factory-provided meterschedules for correct CT locations. Figure 9: Leviton solid core CTs Installing solid core CTs 1. Route CT wires through the conduit if not already done.
  • Page 14 5. With power to the conductors turned off, place one CT around each conductor, ensuring that the white dot is facing the line side. Failure to install CTs in the correct orientation and on the correct phase will lead to inaccurate meter readings. Leviton Manufacturing Co., Inc.
  • Page 15 Mini Meter MMU Installation Manual Leviton Manufacturing Co., Inc.
  • Page 16 Mini Meter MMU Installation Manual Leviton Manufacturing Co., Inc.
  • Page 17 Mini Meter MMU Installation Manual Leviton Manufacturing Co., Inc.
  • Page 18: Testing The Installation

    The purpose of the lock is to prevent access to live parts that pose potential safety risks. To install the lock, slide through the provided holes on the clamp side of the enclosure and fasten securely. Leviton Manufacturing Co., Inc.
  • Page 19: Maintenance

    4. Maintenance Properly installed meters with sound connections and secure conduit fittings should not require user maintenance. If the meter is functioning abnormally, consult the FAQ/Troubleshooting guide. If the answer cannot be found there, contact Leviton technical support. 5. Troubleshooting/FAQ...
  • Page 20: Contact Information

    Leviton S. de R.L. de C.V. Lago Tana 43, Mexico DF, Mexico CP 11290 • Tel. (+52) 55-5082-1040 • www.leviton.com.mx Visit our Website at www.leviton.com/les © 2012 Leviton Manufacturing Co., Inc. All rights reserved. Subject to change without notice. Leviton Manufacturing Co., Inc.

This manual is also suitable for:

6l series6x series

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