OVR Type 1 Surge Protection
OVR Type 1 Surge Protection Devices
OVR Type 1 Surge Protection Devices provide input protection for plants in areas with high levels of lightning strikes, and are typically installed in main distribution switchboards to protect against direct lightning strikes.
- The impulse current of 25kA per pole (10/350 µs wave) satisfies all requirements for overvoltage surge protection
- The early creation of the electric arc by its electronic ignition device reduces the protection level Up to an optimum value of 2,5kV
- Contain a dedicated arc chamber for extinguishing the electrical arc following the discharge, they can open short circuits up to 50kA without using back up protection