MIL-DTL-24643/31 (LS2SU, LS2SA, LS2SUS)
The M24643/31 cable is a low-smoke, zero-halogen shipboard cable. It is suitable for non-watertight, non-flexing service. This Mil-Spec cable features paired stranded bare copper conductors, Cross-Linked Polyethylene (XLPE) insulation, and an LSZH cross-linked Polyolefin (XLPO) jacket. This cable also has individually shielded conductors. This cable is suitable for use in shipboard combat systems, interior communications, lighting, and power applications that do not exceed 600V. The Mil-DTL-24643 Mil-Spec covers cables suitable for use in shipboard, communications, instrumentation, and electronic applications.
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MIL-DTL-24643/31 (LS2SU, LS2SA, LS2SUS) Mil-Spec Shipboard Cable Specifications
M24643/31 Construction:
- Conductor: Stranded Bare Copper, per ASTM B286
- Insulation: Cross-Linked Polyethylene (XLPE)
- Jacket: Low-Smoke, Zero-Halogen (LSZH) Cross-Linked Polyolefin (XLPO)
- Shield: Tinned Copper Braid, pairs individually shielded
- Overall Shield (LS2SUS only): Tinned Copper Braid
- Armor (LS2SA only): Aluminum Braid
M24643/31 Ratings and Approvals:
- Mil-Spec:
- MIL-DTL-24643
- MIL-I-45208A
- MIL-STD-790
- Navy Shipboard Spec:
- LS2SA (armored)
- LS2SU (unarmored)
- LS2SUS (shielded)
- Voltage Rating: 600V
- Nom. Impedance: 75 ohm
M24643/31 Features and Benefits:
- Non-watertight for mission-critical environments.
- Thermoset system for advanced mechanical fortification.
- LSZH system maintains circuit integrity due to minimal smoke generation, acid gas, and toxicity.
- Conforms to the surface transfer impedance and EMP response time requirement.