The IEG1-1REC4-61-.050-91-V is a single-pole, series-trip hydraulic magnetic circuit protector providing reliable power switching and accurate circuit control. This model features an integrated SPDT auxiliary switch with .110 quick-connect terminals and is configured for a 0.050A current rating with a short delay curve (61) for 50/60Hz systems. It operates at up to 80VDC or 240VAC and includes a trip-free mechanism, ensuring the circuit opens on overload even if the handle is held in the ON position. As a VDE-approved IEG model, it meets IEC spacing requirements, making it ideal for international equipment like medical instrumentation, data processing machines, and broadcast equipment where precision and compliance are critical.