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ABB - Installation Products MD325 - T&B Method Traction Motor Disconnect Lug for Diesel-Electric Locomotives, Cable Size 325/24, Bolt Hole 5/16 Inch on 7/8 Inch Centers, Die Code 60

ABB Installation Products MD325 T&B Method Traction Motor Disconnect Lug for Diesel-Electric Locomotives, Cable Size…

UPC: 786210296296


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Contact for Pricing

Call (262) 252-1600 or email [email protected] for pricing and availability.

Overview

The ABB MD325 Traction Motor Disconnect Lug (SKU: MD325) is a specialized electrical connection component designed for diesel-electric locomotive applications. Manufactured by ABB Installation Products, this lug ensures reliable and secure connections within the demanding operational environment of rail traction systems. It is engineered to accommodate a cable size of 325/24, with specific dimensions for bolt hole placement: a 5/16-inch bolt hole on 7/8-inch centers. The lug is compatible with a die code of 60, facilitating its integration with specific terminal blocks and connectors. The catalog data indicates compatibility with copper wire only and a temperature rating of 75°C. Terminal torque specifications are provided: 500 lb.inch / 56 Nxm for the main lug bolt and 26.55 lb.inch / 3 Nxm for the 10-32 UNF auxiliary screw. The conductor size range supported is from 3/0 AWG (85 mm²) minimum to 400 kcmil (240 mm²) maximum. This disconnect lug is crucial for maintenance, repair, and upgrades of locomotive electrical systems, contributing to operational efficiency and safety by providing a robust and dependable connection point for traction motor circuits. Its construction and specifications are tailored for the high-current, vibration-prone conditions typical of locomotive operation.
  • Designed for diesel-electric locomotive traction motor circuits
  • Accommodates cable size 325/24
  • Features 5/16-inch bolt hole on 7/8-inch centers
  • Compatible with die code 60
  • Rated for 75°C operation with copper wire

Specifications

Bolt Hole Centers
7/8 Inch
Bolt Hole Size
5/16 Inch
Die Code
60
Finish
Tin Plated
Material
Copper
Size
325/24
Type
Motor Disconnect Lug
Voltage Rating
600 V
Package Dimensions (L x W x H)
0.01 IN x 0.01 IN x 0.01 IN
Package Dimensions (L x W x H)
0.0254 cm x 0.0254 cm x 0.0254 cm
Package Weight (Imperial)
0.001 L
Package Weight (Metric)
0.001 kg
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How to Install the MD325 Motor Disconnect Lugs

This guide provides step-by-step instructions for installing and crimping the MD325 motor disconnect lugs for secure electrical connections.

Estimated time: 30m

Tools needed:

Wire strippers, Crimping tool, Multimeter

Supplies needed:

Copper cable, Terminal connectors, Wire brush

  1. Strip the cable insulation

    Strip the insulation from the copper cable to the length specified in the installation table. Avoid nicking the strands to prevent breakage.

  2. Prepare the cable end

    Clean the cable end with a wire brush, then insert it into the terminal connector until it stops. Inspect through the peep hole to ensure the cable is fully inserted.

  3. Crimp the connector

    Insert the terminal connector into the crimping tool using the correct die code. Compress the connector in the center of the barrel recess to secure the connection.

  4. Remove sharp edges

    After crimping, carefully remove any sharp edges, flash, or burrs from the connector to ensure safety and proper installation.

  5. Verify connections

    Use a multimeter to check the integrity of the connections. Ensure there are no shorts or open circuits before powering the system.

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