The Phoenix Contact 2817741 is a Type 2 surge protection base element from the VALVETRAB MS series, designed for 1-channel applications. This compact base element, with a width of 17.6 mm, is engineered to support plug-in surge arresters, ensuring reliable protection for 1-phase power supply networks. Ideal for industrial settings, it facilitates quick installation and maintenance, making it a preferred choice for safeguarding electrical systems against transient overvoltages.