Citel MJ8 Data Line DIN Rail Mount Ethernet Surge Protection Devices (SPDs) are CAT5, CAT5e, and CAT6 components that feature hybrid GDT and diode technology (SAD-GDT), bi-directional protection, and a single C6A line network configuration. These devices are designed to be installed inside of an enclosure and in very close proximity to the sensitive equipment that is being protected. The compact 6mm MJ8 Ethernet SPDs are wired in series or parallel with the load. The Citel MJ8 Data Line DIN Rail Mount Ethernet SPDs offer shielded connector configurations and DIN rail, screw lug, and flange mounting options.