MIL-DTL-24643/32 LS2SWAU Shipboard Cable

Mil-Spec Military part number MIL-DTL-24643/32 has one cable-type designation: LS2SWAU. This shipboard cable is rated at 600 volts. Standard Identification Code by Method 2.  24643/32 cords use thermoset insulation and have an outer cross-linked polyolefin jacket (XLPO). All LS2SWAU cables are comprised of pairs of one white and one black wire twisted to form a pair, insulated with two sealed polyester tapes using cross-linked Polyethylene (XLPE) or one XLPE tape with extruded jacket, a copper braided shield over each pair and is cabled consecutively with fillers and binder tape. The cord is watertight and has a non-flexing service. It operates within a temperature range of -20°C to +90°C. This cable is permitted to penetrate bulkheads or watertight decks.

What does the cable designation LS2SWAU mean?

In the cable designation for LS2SWAU, the letters LS refer to low smoke and halogen-free cable. 2 refers to pairs, S refers to shielded, WA refers to watertight, and U refers to the fact that the cable is unarmored.

M24643/32 Construction:

• Conductors: Stranded coated or uncoated copper.
• Insulation: Cross-linked polyethylene (XLPE).
• Shield: Braided shield of 34 or 36AWG tin-coated copper
• Jacket: Low-Smoke, Halogen-Free (LSZH) Cross-Linked Polyolefin (XLPO) with surface markings

M24643/32 Ratings and Approvals

• Mil-Spec:
  • MIL-DTL-24643
  • MIL-I-45208A
  • MIL-STD-790
• Navy Shipboard Spec: LS2SWAU.
• Voltage Rating: 600V

Features and Benefits of M24643/32 Cords

• Watertight cables can operate in a wide variety of situations, including through bulkheads and between decks.
• Thermoset insulation is ideal for settings where durability and stiffness are essential
• LSZH jacket is fire resistant and emits low smoke, which is ideal for shipboard settings which often have restricted ventilation
• LSZH jackets also emit low acid, gas, and toxicity when subjected to fire, maintaining circuit integrity
• Cross-linked polyethylene (XLPE) insulation has a strong anti-deformation capability, even in high temperatures, and has lower dielectric loss than paper or PVC insulation.
• Shielded cables tend to reduce electrical noise created by electromagnetic signals in the cable while also providing greater protection and durability compared to unshielded cables.