OBO Bettermann V50-3+NPE-280 CombiController Surge Arrester, 3-Pole + NPE, 280V

The OBO Bettermann V50-3+NPE-280 CombiController is a high-performance surge arrester engineered to provide robust protection for electrical systems against transient overvoltages. Designed as a 3-pole plus NPE configuration, this device effectively diverts dangerous voltage surges to the ground, safeguarding sensitive equipment and infrastructure in 280V networks. Its durable plastic construction and compact form factor allow for seamless integration into standard electrical distribution boards, ensuring long-term reliability and safety in both residential and industrial environments.

Advantages

This surge arrester offers exceptional discharge capacity, capable of handling up to 80 kA, which provides a significant safety margin during lightning strikes or grid-related power surges. The modular design simplifies maintenance and replacement procedures, while the high-quality materials ensure consistent performance under demanding conditions. By utilizing advanced surge protection technology, the unit helps prevent costly downtime and damage to connected electrical appliances and industrial machinery.

Suitable for

• Residential electrical distribution boards
• Industrial power supply systems
• Protection of sensitive electronic equipment
• Commercial building electrical infrastructure

This device may not be suitable for high-voltage transmission lines or specialized electrical systems operating outside the specified 280V range. It is also not intended for use in environments with extreme moisture or corrosive atmospheres without appropriate protective enclosures.

Key specifications

• Configuration: 3-pole + NPE
• Maximum discharge capacity: 80 kA
• Operating voltage: 280V
• Material: Durable plastic
• Certification: CE certified

Installation should be performed by a qualified electrician in accordance with local electrical regulations. The device is typically mounted on a standard DIN rail within the main distribution board. Ensure that the wiring connections are secure and that the grounding path is properly established to allow the arrester to function correctly during a surge event.

What to consider before purchase

• Verify the voltage requirements of your electrical system
• Ensure sufficient space is available in the distribution board
• Confirm compatibility with existing surge protection schemes
• Check local electrical safety standards and installation requirements

For optimal performance, regularly inspect the status indicators on the device to ensure it remains operational. If the indicator shows a fault, the modular insert should be replaced immediately to maintain continuous protection for your electrical system.