The IULNK1-1-51-15.0 is a single-pole hydraulic-magnetic circuit protector designed for reliable overcurrent protection and power switching. This UL-recognized protector features a series trip configuration, a 15.0A current rating, and a DC short delay (type 51). It is a panel-sealed toggle version with stud terminals, making it suitable for harsh environments. The device operates reliably across a wide ambient temperature range of -40°C to +85°C and includes a trip-free mechanism that ensures safety by tripping on overload even if the handle is held ON. This combination of features makes it ideal for low-cost power switching and accurate circuit control in various DC-powered equipment.