
Product Overview
Diesel Locomotive Cable (DLO) is a 2,000V UL-listed, ultra-flexible power cable engineered for extreme mechanical and electrical demands. Originally developed for diesel-electric locomotives (transmitting power from generators to traction motors), its tinned copper conductors, high-dielectric EPR insulation, and rugged CPE jacket make it ideal for ship-to-shore power, mining equipment, cranes, high-amperage welders, and applications requiring tight bends, repeated flexing, and resistance to oils, ozone, and abrasion.
Key Features & Benefits
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2000V Dual Rating: UL RHH/RHW-2 (90°C dry / 75°C wet)
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Extreme Flexibility: Class I stranding (24 AWG tinned copper strands per ASTM B-33)
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Robust Protection:
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EPR insulation: Superior ozone/heat resistance, high dielectric strength
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CPE jacket: Oil-, flame-, and UV-resistant (UL 44 & ICEA S-75-381)
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Certified Safety: UL Listed (E123456), MSHA-accepted (P-123-0), RoHS 3
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Installation Efficiency:
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Tray-rated (sizes ≥1/0) per NEC 392 (CT use)
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Drop-in replacement for misused welding cables in primary circuits >600V
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Construction Details
Component | Specification |
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Conductor | Tinned annealed copper • ASTM B-33 • Class I stranded • Sizes: 10 AWG–1111 kcmil |
Insulation | Ethylene Propylene Rubber (EPR) • 90°C • Color-coded (black std.) |
Separator | Polyester film tape (easy jacket removal) |
Jacket | Chlorinated Polyethylene (CPE) • Black • Oil/UV/flame-resistant |
Technical Specifications
Dimensional & Weight Data
Size | Stranding (No./Ø mm) | OD (mm) | Insul. Thk (mm) | Jacket Thk (mm) | Weight (kg/km) |
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12 AWG | 37 × 0.373 | 6.6 | 1.52 | 0.38 | 86.6 |
8 AWG | 37 × 0.511 | 8.8 | 1.78 | 0.76 | 154.2 |
1/0 | 19 × 14 × 0.511 | 17.5 | 2.29 | 1.14 | 748.5 |
4/0 | 19 × 28 × 0.511 | 21.9 | 2.29 | 1.14 | 1,326.9 |
535.3 kcmil | 19 × 70 × 0.511 | 33.2 | 3.05 | 1.65 | 3,171.0 |
1111 kcmil | 61 × 45 × 0.511 | 46.2 | 3.56 | 2.41 | 5,210.2 |
Performance Data
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Voltage Rating: 2000V AC/DC (UL 44 RHH/RHW-2)
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Temp Range: -40°C to 90°C (dry) / -40°C to 75°C (wet)
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Bending Radius: 5× OD (fixed) / 8× OD (dynamic flex)
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Flame Rating: VW-1
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Ampacity: NEC Table 310.104(A) @90°C with derating per 310.15
Compliance & Approvals
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Safety: UL 44 (RHH/RHW-2), UL 1277 (tray use)
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Mining: MSHA 30 CFR §75 (Acceptance No. P-123-0)
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Environmental: RoHS 2011/65/EU & 2015/863
Applications
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Primary: Diesel-electric locomotive power leads
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Heavy Industry:
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Mining equipment (MSHA-accepted shovels/long-wall systems)
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Ship-to-shore cranes & port festoon systems
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High-amperage welder primary circuits (>600V)
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Power Systems:
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VFD inverter-to-motor leads
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Emergency generator feeders
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Tray-rated distribution (NEC 392)
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Engineering Advantages vs. Welding Cable
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Enhanced Safety:
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2000V rating vs. welding cable's typical 600V limitation
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Dual-layer EPR+CPE construction vs. single-insulation welding cables
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Code Compliance:
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UL-listed for permanent installation (NEC 400.7)
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Tray-rated for conduit-free runs (sizes ≥1/0)
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Durability:
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Tinned copper resists sulfide corrosion in harsh environments
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Ordering Information
Specify:
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Size (e.g.,
4/0 AWG
,535.3 kcmil
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Length (standard reels: 500 ft / 1,000 ft or custom cuts)
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Certification (MSHA tags, RoHS docs)
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Jacket (black standard; color stripes optional)
Example Part No.: DLO-4/0-2kV-UL-MSHA-1000FT
Packaging & Support
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Reels: Non-returnable steel/plywood with:
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UL hologram & MSHA P-number
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RoHS mark & sequential footage
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Technical Support: Datasheets, ampacity tables, custom configurations