WJ Furse, D1 Lightning / Surge Arrester 280 V Maximum Voltage Rating 6.25kA Maximum Surge Current Mains Surge Protector

Enhanced surge protector for use on power distribution systems
Very low let-through voltage between all lines (L-E, L-N, N-E)
LED status indication with pre-failure warning
Remote indication through volt-free contact
Robust steel housing
Compact DIN housing
Neutral to Earth voltage warning

This lightning and surge arrester is intended to safeguard electrical systems from potential damage caused by voltage spikes. Serving as an essential component for mains surge protection, it actively defends your equipment against transients common in high-energy environments. Featuring a robust design suitable for DIN rail mounting, it ensures easy integration into industrial settings, making it a vital tool for professionals in automation and electronics.

• Supports a maximum voltage rating of 280V
• Operates in a temperature range of -40°C to +70°C
• Provides electrical surge protection for sensitive devices
• Compact dimensions of 72 x 90 x 88 mm

• Protects commercial electrical installations
• Secures household appliances in residential
• Prevents damage to electronic equipment from voltage spikes
• Applicable across various sectors requiring robust lightning protection

This arrester offers dual protection with a maximum surge current capacity of 6.25 kA, providing enhanced safety for sensitive electronic components compared to standard models.

Regular inspections are recommended to ensure proper functionality. Check for any signs of physical damage or wear that may affect performance, particularly after significant electrical events.

While designed for standard mains surge protection, it is advisable to consult system specifications to confirm compatibility, especially in systems with unique requirements.

Voltage surges, often referred to as spikes or transients are typically caused by switching of fluorescent lights, fuses blowing or nearby lightning activity. The worst voltage spikes are usually caused by lightning strikes and can reach up to 6000V, with current surges of over 3000A. The maximum size of the let-through voltage and current inrush depends on the location within the building's wiring system. BS7671: 2011 Amendment 1 Sections 443 and 534 cover risk assessment and provides guidance on protection of electronic equipment for installation engineers to follow. The fullest information on lightning and surge protection comes from the BSEN 62305 series of standards.