FUCHSBERG ELECTRIC GMBH FUCHS Type 1+2 Surge Arrester HSA 255 TNC 12.5 for Busbar 1 (556620)

Protect your electrical installation with the FUCHSBERG ELECTRIC GMBH FUCHS Type 1+2 combined surge arrester, engineered for TN-C systems. With an impulse current of 12.5 kA per pole and a nominal discharge current of 20 kA, it provides robust defense against transient overvoltages.

Overview

Designed for busbar mounting, this arrester offers a voltage protection level below 1.5 kV and a maximum continuous operating voltage of 255 V AC. It features a visual status indicator and integrated thermal disconnector for safe operation.

What stands out

• Combined Type 1+2 protection for high-energy surges
• Compact busbar mounting for space-saving installation
• Visual status indicator for quick maintenance checks
• Thermal disconnector enhances safety

Technical details

• System type: TN-C
• Nominal voltage: 230/400 V AC
• Max continuous operating voltage: 255 V AC
• Nominal discharge current (8/20 µs): 20 kA per pole
• Impulse current (10/350 µs): 12.5 kA per pole
• Voltage protection level: < 1.5 kV
• Number of poles: 4 (3+0 for L1, L2, L3, PEN)
• Max backup fuse: 160 A gG
• Operating temperature: -40°C to +80°C
• Protection class: IP20
• Housing material: thermoplastic
• Response time: < 25 ns

Our verdict

A reliable surge protection solution for busbar installations, combining high discharge capacity with essential safety features.