The ABB ML1-100G is a 22.5 mm green pilot light operator head designed to fit a range of control panels. This rugged component meets multiple NEMA ratings, including 1, 3R, 4, 4X, 12, and 13, ensuring reliable performance in various environmental conditions. Keep in mind, it’s what you'd call a "modular beast"—it needs to be combined with a head, contact block holder, lamp block, and lamp to work properly. Distributed by BSP Automation, this part is a solid choice for those looking to maintain or upgrade their control stations with trusted, durable hardware.