The ABB OVR series surge suppressor unit is a protective device to ensure that electrical equipment is not damaged by a sudden voltage spike. It has an electrical rating of 296V and 20kA. It is a combined category D, C, B tested protector specifically designed for telecommunications applications. For use at boundaries up to LPZ 0 to protect against flashover (typically the service entrance location) through to LPZ 3. Available as standard OVR TN format or compact OVR TNQ and Slim Line OVR SL TN versions for installations where a large number of lines require protection.

• 20 MHz bandwidth greatly exceeds VDSL2+ (50Mbps ∼ 7MHz) maximum speed
• Built-in DIN rail foot for simple mounting to top hat DIN rails
• Convenient earthing through DIN foot and/or earth terminal
• Low in-line resistance minimizes reductions in signal strength
• Operating temperature ranges between -40°C and 80°C
• Repeated protection in lightning intense environments
• Very low let-through voltage between all lines - Full Mode protection

• High-speed digital communication equipment
• Process control
• Systems with long signal lines

• IEC 61643-21