The IUGN6-1-72-30.0 is a single-pole, sealed toggle hydraulic-magnetic circuit protector designed for reliable overcurrent protection and power switching. This protector features a series trip configuration with screw terminals, a 30.0A current rating, and a long time delay (Curve 72) for DC or 60Hz circuits. It incorporates a trip-free mechanism that ensures the circuit opens during an overload regardless of the handle position and operates reliably in ambient temperatures from -40°C to +85°C. The sealed toggle design with bushing mounting ensures panel integrity, making it ideal for use in harsh environments such as military applications, data processing equipment, and medical instrumentation.