ABB - Installation Products MD1325 - T&B Method Traction Motor Disconnect Lug for Diesel-Electric Locomotives, Cable Size 1325/24, Bolt Hole 3/8 Inch on 1 Inch Centers, Die Code 107

ABB - Installation Products MD1325 T&B Method Traction Motor Disconnect Lug for Diesel-Electric Locomotives, Cable Size…

UPC: 786210864440

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Multiplier: 5

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Overview

The ABB T&B Method Traction Motor Disconnect Lug (SKU: MD1325) is a precision-engineered electrical termination component designed for high-current traction motor applications in diesel-electric locomotives. This disconnect lug ensures reliable, low-resistance connections for 1325/24 AWG copper cables, meeting the demanding electrical and mechanical requirements of traction motor systems. Engineered with a 3/8-inch bolt hole on 1-inch centers (die code 107), the MD1325 provides exact fitment for standard industrial disconnect switches and terminal blocks. The lug is manufactured from high-conductivity copper alloy, ensuring optimal current transfer and minimal heat generation during operation. Its robust design withstands vibration, thermal cycling, and mechanical stress common in locomotive traction systems. Key specifications include a maximum conductor temperature rating of 75°C for copper wire only, with terminal torque specifications of +5%/-10% (N•m/lb•inch). The lug accommodates cable sizes ranging from 3/0 AWG (85 mm²) to 400 kcmil (240 mm²), providing versatility for various locomotive configurations. The die code 107 ensures compatibility with standard T&B Method disconnect systems, simplifying integration into existing installations. Ideal for maintenance, upgrades, or new locomotive builds, the MD1325 reduces installation time while enhancing system reliability. Its durable construction delivers long-term performance in harsh operating environments, including exposure to moisture, dust, and temperature extremes. Trust ABB’s decades of expertise in railway electrification to deliver a component that meets the rigorous standards of the rail industry.
  • Precision-engineered for 1325/24 AWG copper cables in traction motor applications
  • 3/8-inch bolt hole on 1-inch centers (die code 107) for standard disconnect switch compatibility
  • Accommodates cable sizes from 3/0 AWG (85 mm²) to 400 kcmil (240 mm²)
  • Maximum conductor temperature rating: 75°C (copper wire only)
  • High-conductivity copper alloy construction for optimal current transfer and durability

Specifications

Finish
Tin Plated
Material
Copper
Type
Motor Disconnect Lug
Voltage Rating
600 V
Package Dimensions (L x W x H)
4.2 IN x 4.2 IN x 3.2 IN
Package Dimensions (L x W x H)
10.668 cm x 10.668 cm x 8.128 cm
Package Weight (Imperial)
0.720 L
Package Weight (Metric)
0.327 kg
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How to Install the MD1325 Motor-Disconnect Lugs

This guide provides step-by-step instructions for installing the MD1325 motor-disconnect lugs, ensuring a secure and reliable electrical connection.

Estimated time: 30m

Tools needed:

Wire strippers, Crimping tool, Multimeter

Supplies needed:

Copper cable, Terminal connectors, Wire brush

  1. Prepare the cable

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

  2. Insert the cable into the connector

    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

    Place the connector in the appropriate crimping die and compress it in the center of the barrel recess. Ensure you are using the correct die to avoid defective connections.

  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 the connection

    Use a multimeter to test the connection for continuity and ensure that it is secure before powering on the system.

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