OBO BETTERMANN SurgeController V20 V20-3+NPE+FS-280 3-Pole with NPE+FS 280V Type 2 SPD 5095333

Protect your three-phase electrical installations from transient overvoltages caused by lightning or switching operations. The OBO BETTERMANN SurgeController V20 V20-3+NPE+FS-280 is a Type 2 surge protective device (SPD) designed for permanent installation in low-voltage systems. It safeguards sensitive equipment by diverting surge currents safely to earth, preventing damage and downtime.

Who is it for

This SPD is intended for electricians, panel builders, and maintenance engineers who need reliable surge protection for industrial, commercial, or residential three-phase power distribution systems. It is suitable for use at the main distribution board or sub-distribution level where a 3-pole plus N-PE configuration is required.

Main features

• Type 2 surge protection according to IEC/EN 61643-11, suitable for installation at the service entrance or downstream of a Type 1 SPD.
• 3-pole protection with separate N-PE spark gap for complete protection of L-N, L-PE, and N-PE paths.
• High discharge capacity: nominal discharge current (In) of 20 kA per pole, maximum discharge current (Imax) of 40 kA per pole.
• Low voltage protection level (Up): less than 1.3 kV for L-N and less than 1.5 kV for L-PE and N-PE, ensuring effective protection for connected equipment.
• Integrated thermal disconnector and visual status indicator for easy monitoring and safe operation.
• Potential-free changeover contact for remote signaling of device status.
• DIN rail mountable (35 mm) for quick installation in standard distribution boards.
• Wide connection range: 1.5 to 35 mm² solid, 1.5 to 25 mm² flexible.
• Compact, halogen-free thermoplastic housing with IP20 protection, suitable for indoor use.

Specifications

• SPD type: Type 2 (Class II)
• Nominal discharge current (In): 20 kA (8/20 µs) per pole
• Maximum discharge current (Imax): 40 kA (8/20 µs) per pole
• Max. continuous operating voltage (Uc): 280 V AC
• Voltage protection level (Up) L-N: < 1.3 kV
• Voltage protection level (Up) L-PE: < 1.5 kV
• Voltage protection level (Up) N-PE: < 1.5 kV
• Number of poles: 3 + NPE
• Protection mode: L-N, L-PE, N-PE
• Remote signaling contact: Yes (potential-free changeover)
• Mounting: 35 mm DIN rail
• Response time: < 25 ns
• Degree of protection: IP20
• Housing material: Thermoplastic, halogen-free
• Connection cross-section (solid): 1.5 - 35 mm²
• Connection cross-section (flexible): 1.5 - 25 mm²
• Operating temperature range: -40 to +80 °C
• Standards: IEC 61643-11, EN 61643-11
• Thermal disconnector: Yes
• Visual status indicator: Yes

Tips

For optimal protection, install this SPD as close as possible to the equipment to be protected and ensure proper grounding. The remote signaling contact can be wired to a monitoring system to alert maintenance personnel when the device needs replacement. Always follow local electrical codes and regulations during installation.