Surge arresters
Protection of high-voltage transmission networks, transformers, switchgear and cable systems against lightning and switching overvoltages. Metal-oxide varistor column with silicone-rubber housing, to IEC 60099-4.
- Resistant to pollution, UV radiation, shocks, vibration and rough handling.
- Permanent hydrophobicity and high mechanical strength.
- Lighter than porcelain arresters; easy transport, even horizontally.
- Fast installation without special tools; maintenance-free design.
- Indoor and outdoor use, IP65 protection, temperature from −40 to +55 °C.
- Accessories: insulated supports, arrester disconnectors and mounting kits.
| Standard | IEC 60099-4 |
| Housing | Silicone rubber |
| Type | Metal oxide, gapless |
| 5 kA class | Uc 2.45–39 kV · Ur 3–48 kV · Ures ≤ 9–140 kV · 2 × 65 kA (4/10 µs) · line class 1 |
| 10 kA class | Uc 2.45–39 kV · Ur 3–48 kV · Ures ≤ 9–144 kV · 2 × 100 kA (4/10 µs) · line class 1 |
| 20 kA class | Uc 4.25–39 kV · Ur 5.1–46.5 kV · Ures ≤ 14.55–133.5 kV · 2 × 100 kA (4/10 µs) · line class 4 |
| Protection | IP65 |
| Operating temperature | −40 … +55 °C |
Each unit is built to the parameters the customer requires. Request your specification.
Parameters defined by the customer
Power ratingPrimary and secondary voltagesVector groupFrequencyVoltage regulationImpedanceSite altitude and climateStandardsAccessories and protections
Send enquiry