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TE Connectivity’s (TE) Raychem HVSY-1520S series tap splices are for use on copper tape, wire shield, lead sheath, and UniShield cables.  HVSY-1580D series is for use as a wye splice where the main and/or tap cables may be paper-insulated, lead-covered (PILC) cable; varnished cambric-insulated, or lead covered (VCLC) cable.

TE’s HVSY series is designed to seal against moisture ingress by including a branch clip and the heavy-duty MBSM wraparound sleeve



  • Internal moisture seals provide a redundant seal against water intrusion
  • Splices accept a wide range of main and tap cable sizes
  • Qualified to IEEE 404
  • Compact shape simplifies cable training


Please review product documents or contact us for the latest agency approval information.  

Product Type Features

  • Technology  Heat Shrink

  • Insulation  Plastic

  • Cable Shield Style  Tape

  • Mechanical Connectors Included  No

Configuration Features

  • Number of Cores  1

Electrical Characteristics

  • Voltage Class (kV) ≤ 15


  • Cross-Section Range (AWG/kcmil) 2 – 4/0, 2 – 750, 4/0 – 750

  • Conductor Diameter (in) .29 – .53, .53 – 1, .92 – .51, .92 – 1

  • Insulation Diameter (Main, Y-Only) (in) .65 – 1.05, .85 – 1.25, .95 – 1.45

  • Insulation Diameter (Tap, Y-Only) (in) .65 – 1.05, .65 – 1.45, .85 – 1.45


  • Application Type  Branch, Transition

Industry Standards

  • Design Specification  IEEE 404

Product Availability

  • Product Availability  AMERICAS


  • Installation Instruction  English

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