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DLO Cable Specifications

DLO Cable Specifications

Diesel Locomotive Cable is a durable power cable designed for use in the engines of diesel-electric locomotives. However, its construction allows for it to be used in many other applications as well. In order to use a DLO cable properly, it's important to understand its approvals, construction, and specifications.


DLO Cable is a single conductor portable power cable. It features a fully annealed, stranded tinned copper conductor, thermoset rubber insulation, and a thermoset rubber jacket. Common materials include Ethylene Propylene Rubber (EPR) for insulation and Chlorinated Polyethylene (CPE) for the jacket. DLO cable is often available from 14 AWG to 1111KCMIL.

The conductor is often comprised of 24 AWG to 27 AWG strands, which allows for more flexibility. The copper being tinned provides extra resistance to abrasion and other environmental factors. EPR insulation has high dielectric strength, thermal stability, and flexibility. The CPE jacket provides excellent oxidation, oil, flame, weather, UV, and flame resistance. CPE is incredibly tough and often found in industrial-grade cables. This durable construction allows for DLO cable to be used in heavy-duty applications.

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Ratings and Approvals

The standard voltage rating for a DLO cable is 2kV. It has a maximum temperature of +90C in both wet and dry environments. Most DLO cable is also UL RHH/RHW and CSA RW90 listed. The RHH/RHW approval covers safety requirements for a single conductor, rubber-insulated wire or cable. In order to be used in mining operations, a DLO cable must also have MSHA approval. Additionally, DLO cable may be used in wind turbines that do not exceed 2kV per UL Subject 6140.


In addition to diesel-electric applications, DLO Cable is suitable for use in power supply systems, oil and gas drilling rigs, flexible power leads, motor leads, and shipyard applications that do not exceed 2kV. It may also be installed in conduit, raceways, and cable trays. DLO Cable may also be used in applications that require a high-voltage welding cable but will not exhibit as much flexibility. You can learn more about the differences between these cables here.

With the proper information, DLO cable can be utilized in a wide variety of applications. If you still have questions about DLO cable, contact us today!