Surge protectors OPN-M are designed to protect internal distribution circuits of residential and public buildings from lightning and switching overvoltages.

The protectors are intended for operation in single-phase or three-phase alternating current electrical networks with a voltage of up to 400 V at a frequency of 50 Hz.

The protectors perform functions of overvoltage limitation and impulse current diversion.

The main areas of application for the protectors include:

• input-distribution devices
• accounting-distribution panels of residential and public buildings
• group apartment and floor panels

Modification options:

• OPN-M (2S) 20kA – Surge protector with 2 modules 220V
• In: 20kA

They consist of a base and replaceable modules with a signaling indicator:

• green: normal operating condition
• orange: cartridge replacement needed