Phoenix Contact 3000716 PT 2.5-3PV BU Series Blue, 2.5mm², 3-Level, ATEX, IECEx

Achieving safe electrical connections is a breeze with this DIN rail terminal block from Phoenix Contact. Its multi-level construction lets you link up to three circuits, saving you space in a crowded control cabinet. With a push-in wiring method, the unit makes set-up quick and hassle-free. A contact spring holds the conductor securely in place even under tough mechanical stresses.
This adaptable gadget is compatible with wire sizes between 26 and 12AWG, so it's highly versatile. As it snaps onto a standard DIN rail, setting it up is simple – just click it into place.
A current rating of 20A ensures this device has the oomph to handle heavy-duty industrial power supplies. It's a reliable choice for telecommunications equipment and building management systems.

• Tough polyamide housing is wear-resistant for a long service life
• Self-extinguishing in under 10 seconds to help prevent the spread of fire
• Compact dimensions of 102 (L) x 56.5 (H) x 5.2mm (W) so it fits easily where space is tight
• ATEX certified for use in potentially explosive settings

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.