Epoxy Insulators – Engineered for High-Voltage Safety & Structural Integrity
Our epoxy resin insulators are built to perform in extreme electrical and mechanical environments, delivering outstanding arc resistance, thermal endurance, and dimensional accuracy.
Manufactured using vacuum casting or pressure gelation techniques, these insulators are ideal for insulating live parts in switchgear, bus ducts, and instrument transformer assemblies. Their high dielectric strength ensures long-term stability in indoor and outdoor installations.
Core Performance Benefits:
- ✅ High dielectric strength (up to 20kV)
- ✅ Resistant to tracking, arcing, and moisture ingress
- ✅ Thermal stability up to 155°C
- ✅ Mechanical impact resistance with low shrinkage
- ✅ Available in post, bushing, and custom cast shapes
Where They’re Used:
- Indoor/outdoor switchgear panels
- Instrument transformers & CT/PT enclosures
- Isolator and circuit breaker supports
- Busbar and power rail systems
- HV and MV electrical distribution networks
Technical Details:
Property |
Specification |
Material |
Epoxy Resin (Filled) |
Dielectric Strength |
18–20 kV/mm |
Thermal Class |
Class F (155°C) |
Water Absorption |
< 0.1% |
Standard Colors |
Red, Brown, Custom |
Why Our Clients Trust Us:
- ISO-certified manufacturing with 100% testing
- Custom tooling available for non-standard shapes
- Excellent dimensional repeatability
- On-time dispatch with safe transport packaging