MIL-DTL-24643/46 LS2WAU Shipboard Telephone Cable

Mil-Spec Military part number MIL-DTL-24643/46 has one cable-type designation: LS2WAU. This shipboard telephone cable is rated at 600 volts. Telephone Identification Code by Method 3.  24643/46 cords use thermoset insulation and have an outer cross-linked polyolefin jacket (XLPO). LS2WAU cables are comprised of two conductors in thermoset insulation to form a pair. The pairs are then inserted into the cable around a central filler per section 3.4.4 of MIL-DTL-24643. The entire assembly is wrapped in a tin-coated copper shield and then jacketed in cross-linked polyolefin (XLPO). The cord is watertight and has a non-flexing service. It operates within a temperature range of -20°C to +90°C. Watertight cables can operate in a wide variety of situations, including through bulkheads and between decks.

What does the cable designation LS2WAU mean?

In the cable designation for LS2WAU, the letters LS refer to low smoke and halogen-free cable. 2 refers to two conductors, WA refers to watertight, and U refers to unarmored.

M24643/46 Construction:

• Conductors: Tin-coated copper, per ASTM B286, 26 AWG, 7 strands
• Insulation: Thermoset
• Shield: An overall braided shield of tin-coated copper
• Jacket: Low-Smoke, Halogen-Free (LSZH) Cross-Linked Polyolefin (XLPO) with surface markings

M24643/46 Ratings and Approvals

• Mil-Spec:
  • MIL-DTL-24643
  • MIL-I-45208A
  • MIL-STD-790
• Navy Shipboard Spec: LS2WAU
• ASTM B286

Voltage Rating: 600V

• Features and Benefits of M24643/46 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
• Shielded cables reduce electrical noise created by electromagnetic signals in the cable while also providing greater protection and durability than unshielded cables.