Products
AC Disc Suspension Insulators
Our AC disc suspension porcelain insulators (cap-and-pin type) are the workhorse of overhead transmission. Available in normal, fog and anti-pollution shed profiles, each unit is type-tested to IEC 60305 / IEC 60383 and routine-tested 100% for mechanical and electrical performance. Strings are configurable from 33 kV up to 1000 kV AC. Optional zinc collars provide additional protection in marine and industrial environments.

Cap-and-pin discs for AC transmission lines.
- 70-530 kN mechanical-electrical load
- Standard, fog (BP) and anti-pollution shed profiles
- Zinc collar option for corrosion-prone corridors
- Type-tested per IEC 60305, IEC 60383, IEC 60797
Gallery
AC Disc Suspension Insulators — production photos

U300BP-195T · 300 kN UHV

U70B-146 · 70 kN standard disc

U70BP-146D · 70 kN fog disc

U210BP-146D · 210 kN anti-pollution

U40C · 40 kN distribution disc

U70B-146 · assembled string view
Models
Available models
| Code | Voltage class | Mechanical load | Creepage | Standard |
|---|---|---|---|---|
| U70B-146 | — | 70 kN | 320 mm | IEC 60305 |
| U70BP-146D | — | 70 kN | 445 mm | IEC 60305 |
| U120B-146 | — | 120 kN | 320 mm | IEC 60305 |
| U160B-170 | — | 160 kN | 380 mm | IEC 60305 |
| U210B-170 | — | 210 kN | 380 mm | IEC 60305 |
| U300BP-195T | — | 300 kN | 545 mm | IEC 60305 |
| U420B-205 | — | 420 kN | 450 mm | IEC 60305 |
| U530B-240 | — | 530 kN | 545 mm | IEC 60305 |

