IUGN6-1-51-5.00 is a single-pole hydraulic magnetic circuit protector from the IAG/IUG/IEG/CEG/LEG series manufactured by Airpax/Sensata Technologies. This device provides low-cost power switching, reliable circuit protection, and accurate circuit control for equipment in the international marketplace. The protector features a compact design with mounting dimensions of 1.660 inches (42.16 mm) width and 2.000 inches (50.80 mm) height, with two 6-32 thread mounting holes spaced 0.156 inches (3.96 mm) in diameter. It operates with a rocker-style ON/OFF handle mechanism and is designed for panel mounting with standard tolerance of ±0.005 inches (0.13 mm). The device is UL Recognized as a supplementary protector per UL STD. 1077 and CSA Certified, making it suitable for equipment requiring IEC compliance and international safety standards.