Need a standalone unit to protect your measurement and control systems? This surge suppressor from Phoenix Contact ticks the right boxes for safety and reliability.
It prevents harm to people and equipment by blocking or redirecting excess voltage to the ground. As a result, problems like electrical faults or lightning strikes won't make it to your distribution board where they can cause damage or system downtime.
You can also trust this piece of kit to withstand significant surges up to 2.5kA, so it's a smart choice for lighting networks in commercial or industrial settings. Installation is hassle-free thanks to the simple push-in connections. As this is a versatile choice that accepts any wire size between 0.2 and 4mm², you'll find it works with commonly used AWG sizes from 24 to 12.

• Operating temperature range between -40°C and +85°C, so works safely in harsh environments
• IP20 approval lets you know it's touch-proof and poses no threat of shocks
• UL 94 V0 flammability rating means it won't contribute to the spread of flames in case of a fire
• Integrated status indicator light for easy diagnostics

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.