The Eaton SPD100480Y3M is a surge protection device designed to safeguard electrical systems from voltage spikes. This model is rated for 100 kA interrupting capacity and operates with a 277/480V WYE (4-wire plus ground) configuration. It includes a standard feature package along with a built-in surge counter, allowing for easy monitoring of surge events. Housed in a NEMA 1 enclosure with an internal disconnect, the unit is designed for mounting on the external side for straightforward installation. Its voltage protection levels are 320 volts line-to-neutral, line-to-ground, and neutral-to-ground, with 640 volts line-to-line. This reliable surge protector is available through BSP Automation, providing a practical solution for industrial power protection needs.