DLO Cable – Diesel Locomotive Power Cable for Rugged Applications
DLO cable (Diesel Locomotive Cable) is built for high-demand environments where flexibility, durability, and long service life are essential. Rated for 2,000 volts, this single-conductor power cable features a tinned copper conductor and thermoset insulation, offering excellent resistance to abrasion, impact, oil, heat, flame, sunlight, and chemicals. It's designed to maintain reliable performance in both stationary and mobile heavy-duty power applications.
Commonly used in diesel-electric locomotives, mining equipment, shipyards, motor leads, and industrial generators, DLO cable is also frequently compared to welding cable — though it offers enhanced insulation, voltage rating, and longevity. Its flexible stranded construction makes routing and installation easier, especially in tight spaces or high-vibration environments.
Available in a full range of sizes from 14 AWG to 1111 MCM, our DLO cable is in stock and ready to ship. Whether you're sourcing for new builds or replacement projects, Allied has the inventory and turnaround time to keep your operation moving.
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What is DLO cable?
Diesel locomotive cable, also known as DLO cable, is a flexible portable power cable designed for use in diesel-electric locomotive engines. However, it is also suitable for use in heavy-duty power applications and motor leads where ruggedness and reliability are critical. Our DLO cable features a stranded tinned copper conductor, EPR insulation, and a CPE jacket. It has a maximum temperature rating of +90°C and a voltage rating of 2000V. Our DLO cable also has UL Type RHH/RHW-2, CSA Type RW90, and MSHA approval.
DLO Cable Specifications
DLO Cable Construction
- Conductor: Stranded Tinned Copper, Fully Annealed per AAR-598 and ASTM B 33
- Insulation: Premium-grade Ethylene Propylene Rubber (EPR)
- Cable Jacket: Black Chlorinated Polyethylene (CPE)
DLO Cable Ratings and Approvals:
- ICEA S-95-685/NEMA WC 70
- UL 44 TYPE RHH/RHW-2
- (C)UL or CSA RW90
- MSHA - Flame Retardant
- RoHS Compliant
- Only 1/0 DLO and larger are CT rated
- Temperature rating: 90C
- Voltage Rating: 2000V
DLO Cable Applications:
- Diesel-electric locomotives
- Power Supply Systems (UL Rated)
- Oil and Gas drilling rigs
- Motor Leads
- Shipyards
- May be used where flexible power leads must be installed in conduit or raceways
- In accordance with Subject 6140 from Underwriter Laboratories, DLO is also able to be used for wind turbines that are powered at a maximum of 2000 volts.
Allied University
Want to learn more about DLO cable or other categories of industrial wire and cable? Browse one of our relevant DLO blogs below from Allied University or contact us to speak to one of our Wire Specialists.