OBO BETTERMANN SurgeController V20 V20-3-280 scaricatore di sovratensione tripolare 280V Tipo 2 5095163

Electricians install the OBO BETTERMANN SurgeController V20 V20-3-280 in main distribution boards to protect three-phase electrical installations from transient overvoltages. This Type 2 surge protection device (SPD) is suitable for TN-S and TT systems, safeguarding sensitive equipment against surges caused by indirect lightning strikes or switching operations.

Key specifications

• Type 2 surge protection device (SPD)
• 3 poles, protection mode L-PE
• Nominal system voltage: 230/400 V AC
• Maximum continuous operating voltage (Uc): 280 V AC
• Nominal discharge current (In): 20 kA (8/20 µs) per pole
• Maximum discharge current (Imax): 40 kA (8/20 µs) per pole
• Voltage protection level (Up): < 1.3 kV
• Response time: < 25 ns
• Short-circuit withstand capability (Isccr): 50 kA with max. pre-fuse
• Mounting on 35 mm DIN rail
• Degree of protection: IP20
• Operating temperature range: -40 to +80 °C
• Connection cross-section: 1.5 - 35 mm² (solid/stranded)
• Integrated thermal disconnector
• Visual status indicator: green = OK, red = fault
• Housing material: flame-retardant thermoplastic

Why choose it

The SurgeController V20 combines high discharge capacity with a fast response time, ensuring reliable protection for your electrical installation. Its compact DIN rail design and clear status indication simplify installation and maintenance.

Ideal use cases

• Protection of three-phase sub-distribution boards
• Safeguarding industrial control systems and building automation
• Surge protection for commercial and residential electrical installations

Good to know

Complies with EN 61643-11 and IEC 61643-11 standards. The device features an integrated thermal disconnector for safe operation.