ABB Surge Protection Devices Type 1+2 SPD Class I High discharge capacity

ABB Surge Protection Devices Type 1+2
SPD Class I

High discharge capacity 

OVR type 1 and type 1+2 are designed to discharge high current surges without any destruction of the installation. This surge protective device is characterized by its capacity to withstand impulse current with 10/350 µs waveform which simulates direct impact coming from a natural lightning current. Type 1 and Type 1+2 SPDs are placed at the entrance point of the installation, in the main distribution board for global protection of this installation.
Main benefits

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

OVR T1 SPDs 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.

Main features

limp 25kA and 12.5kA

3 types of follow current (If) 50, 15 and 7kA

Spark gap and varistor technology

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