The IUGN666-1REC4-62-30.0-B is a three-pole hydraulic magnetic circuit protector designed for reliable overcurrent protection and power switching. It features a 30.0A current rating for operation at up to 80Vdc or 240Vac, with a long delay curve (Delay 62) suitable for starting motors or handling transformer and capacitor loads. This model includes a series trip configuration with an integrated SPDT auxiliary switch for remote status indication. The sealed toggle design ensures panel integrity in harsh environments, while the trip-free mechanism guarantees circuit opening on overload regardless of handle position. Its hydraulic-magnetic technology provides precise operation unaffected by ambient temperature changes, making it ideal for data processing, medical instrumentation, and military applications.