Line Post Insulators
Line Post Insulators,Built for Every Crossarm
Premium porcelain line post insulators engineered to ANSI 57 standards — trusted by utilities and contractors globally for over a decade.
Versatile Porcelain Line Post Insulators
Engineered for versatility and strength — Tie Top models rated 25kV–69kV with 2,800 lb cantilever strength, ideal for wood and steel crossarms. Choose ANSI 57-1S to 57-5L with wide conductor grooves for Wraplock or clamp-top conductors.
Complete Line Post Range
Clamp-top and horizontal mounting variants for every crossarm configuration.
Key Technical Advantages
ANSI Certified
Manufactured to ANSI 57 standards with full mechanical and electrical verification.
Versatile Mounting
Tie top, clamp top and horizontal options fit wood and steel crossarms.
High Strength
2,800 lb cantilever capacity handles demanding distribution lines.
Durable Glaze
Weather-resistant porcelain glaze for decades of outdoor service.
Optimized Design Features
- ✓Rated 25kV–69kV for distribution class lines
- ✓ANSI 57-1S to 57-5L full model range
- ✓Wide conductor grooves for Wraplock or clamp-top conductors
- ✓Brown or grey glaze options
- ✓Cast or forged steel base fittings
Industry Applications
- ✓Wood and steel crossarm mounting
- ✓Distribution line insulation
- ✓Substation take-off structures
- ✓Rural and urban overhead networks
- ✓Replacement for legacy pin-type installations
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Get a Custom Quote in 24 Hours
Send us your specifications — voltage class, BIL, drawings or standards — our engineering team will respond within one business day with pricing and technical recommendations.
- Direct communication with engineers, not sales reps
- Free technical consultation & sample support
- FOB / CIF / DDP terms — we handle the logistics