The IELBX11-1-72-30.0-M3-V is a hydraulic-magnetic circuit protector from the IEL series, designed for reliable circuit protection and power switching. It is a two-pole device with a series trip configuration, rated for 30.0 amperes. This protector features a long time delay (curve 72) suitable for both DC and 60Hz circuits. The IELBX-style housing includes a single rocker handle with accidental-off protection, M3 metric thread mounting, and is VDE and CCC approved as indicated by the '-V' suffix. This trip-free protector is ideal for equipment requiring compliance with international standards like IEC and VDE, such as in telecommunications, power supplies, and industrial control systems.