polyethylene insulators, molded accessories, hendrix insulators, fire retardant insulators

Tie-Top Line Post

Lightweight, shatter-proof line-post insulators compatible with covered and bare conductors.

Proven Performance. Trusted Reliability.

We pioneered HDPE distribution insulators nearly six decades. Today, utilities around the world trust our polymer insulators for lightweight construction, exceptional durability, and dependable performance across demanding overhead distribution systems.

Lightweight

Lightweight Construction

Up to 90% lighter than porcelain for easier handling, safer installations, and improved crew productivity.

Usa

Made in the USA

Manufactured domestically and compliant with Buy America Build America (BABA) requirements.

Impact Res

Impact-Resistant Design

HDPE construction resists cracking, chipping, and brittle failure for dependable performance in demanding environments.

Field Proven

Field-Proven Since 1965

Trusted by utilities worldwide for nearly six decades of reliable overhead distribution performance.

Built for Reliable Line Support

Lightweight, durable performance for overhead distribution systems.

Tie-Top Line-Post Insulators provide secure support and dependable insulation for bare and covered conductors. Designed for new construction and retrofit applications, their HDPE construction offers a durable, lightweight replacement for traditional porcelain line-post insulators.

Designed for the Field
  • Supports bare and covered conductors
  • Works with standard tie products
  • Direct replacement for porcelain line-post insulators
  • Lightweight, durable HDPE construction
  • Exceeds ANSI electrical and mechanical requirements
  • Resists impact, breakage, weathering, and vandalism

VIEW SPEC SHEETS

Compare to Other Insulator Designs

Vise Top Pin

  • Compatible with Covered or Bare conductors
  • Proper & Consistent Gripping Strength
  • SKU Reduction -No Need for Tie Wire
  • Durable – Impact Resistant
  • Light Weight – UV Stabilized Polyethylene

Clamp Top Line Post

  • Compatible with Bare conductors
  • Durable – Impact Resistant
  • Light Weight – UV Stabilized Polyethylene
  • Exceeds ANSI electrical and mechanical requirements

Vise Top Line Post

  • Compatible with Covered or Bare conductors
  • Proper & Consistent Gripping Strength
  • SKU Reduction -No Need for Tie Wire
  • Durable – Impact Resistant
  • Light Weight – UV Stabilized Polyethylene

Tie-Top Line Post Insulator Spec Sheets

Part Number
Voltage
ANSI Class
Neck Size
Pin Size (in)
Spec Sheet
HPI-55-3
15kV
55-3
C
1
HPI-55-4
15kV
55-4
F
1
HPI-55-5-01
25kV
55-5
F
1
HPI-55-5-02
25kV
55-5
F
1-3/8
HPI-25-01
25kV
55-5
F
1
HPI-25-02
25kV
55-5
F
1-3/8
HPI-25J-01
25kV
56-1
J
1
HPI-25J-02
25kV
56-1
J
1-3/8
HPI-35-01 / 02
35kV
55-6
F / J
1 / 1-3/8
HPI-35J-01
35kV
55-6
J
1
HPI-35J-02
35kV
55-7
J
1-3/8
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Easy to work with. The support you need. A team that’s on your side. We can’t wait to work with you.

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