3EK8 Silicone Rubber Surge Medium Voltage Surge Arresters

Product Description

Siemens 3EK8 wrap design surge arresters are ideally suited to providereliable protection for:

 Medium-voltage distribution networks

The silicone rubber housing is directly molded onto the metal oxide (MO)blocks. This creates a reliable seal that prevents moisture ingress and partialdischarges.

In the extremely rare event of an overload, arcing cannot result in abuildup of critical internal pressure, since the MO resistors are not enclosedin a sealed rigid mechanical shell. The arc can escape directly through thefiberglass wrap and the soft silicone housing without damaging the mechanicalstructure. No internal parts are ejected in the process.

High-temperature vulcanized (HTV) silicone rubber is highly hydrophobic.This keeps any conductive moisture from forming on the surface, and dirtdeposits are rendered harmless as a result of the hydrophobic transfer.Silicone is highly fire-retardant and self-extinguishing in the event of fire.These properties ensure the reliable, maintenance-free operation of 3EK8 surgearresters.

3EK8 surge arresters can be delivered with the same accessories like3EK7 surge arresters.