Tie Top Pin
- Compatible with Covered or Bare conductors
- Durable – Impact Resistant
- Light Weight – UV Stabilized Polyethylene
- Safer – Shatter proof design
Vise-Top Pin
Consistent conductor grip with lightweight, durable HDPE performance for covered or bare wire.
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 Construction
Up to 90% lighter than porcelain for easier handling, safer installations, and improved crew productivity.
Made in the USA
Manufactured domestically and compliant with Buy America Build America (BABA) requirements.
Impact-Resistant Design
HDPE construction resists cracking, chipping, and brittle failure for dependable performance in demanding environments.
Field-Proven Since 1965
Trusted by utilities worldwide for nearly six decades of reliable overhead distribution performance.
Built for Simplified Installation
Secure conductor retention without traditional tie wire.
Vise-Top Pin Insulators combine conductor support, insulation, and mechanical retention in one streamlined design. The integrated clamping system provides consistent holding strength while simplifying installation for new construction and retrofit applications.
Designed for the Field
- Compatible with bare and covered conductors
- Integrated clamp eliminates the need for tie wire
- Provides secure, consistent conductor retention
- Lightweight, UV-stabilized HDPE construction
- Exceeds ANSI electrical and mechanical requirements
- Compatible with the Hendrix VTST-1 Stringing Tool
Compare to Other Insulator Designs
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
Vise-Top Pin Insulator Spec Sheets
Part Number
Description
Voltage
ANSI Class
Neck Size
Pin Size (in)
Spec Sheet
HPI-15VTP
with plastic inserts for use on covered & bare aluminum or copper conductors
15kV
55-3, 55-4
C
1
HPI-25VTP-01
with plastic inserts for use on covered & bare aluminum or copper conductors
25kV
55-5
F
1
HPI-25VTP-02
with plastic inserts for use on covered & bare aluminum or copper conductors
25kV
56-1
F
1-3/8
HPI-35VTP-01
with plastic inserts for use on covered & bare aluminum or copper conductors
35kV
55-6
F
1
HPI-35VTP-02
with plastic inserts for use on covered & bare aluminum or copper conductors
35kV
55-7
F
1-3/8
We’re Everywhere You’re Working
Easy to work with. The support you need. A team that’s on your side. We can’t wait to work with you.