Phoenix Contact, PT 4X1-24AC-ST Surge Protection Plug 24 V ac Maximum Voltage Rating Surge Protector

PLUGTRAB PT- IQ Intelligent and systematic surge protection plugs for the PLUGTRAB PT- IQ surge protection system. The PLUGTRAB PT- IQ protective systems has unique three stage display which indicates damaged as well as failed plugs. The three display stages are: Green - OK; Yellow - Performance limit reached and replacement recommended; Red - Overloaded and replacement required. The replacement PLUGTRAB PT-IQ Plugs are for both the direct and indirect grounding connection options.

The Phoenix Contact's surge protection plug is for four conductors of signal circuits grounded on one side.

Height 45 mm
Width 17.7 mm
Depth 52 mm
Ambient temperature (operation) -40 °C to 85 °C
Degree of protection IP20
Mounting type on base element
Housing material PA 6.6
Flammability rating according to UL 94 V-0
Colour jet black RAL 9005

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.