The 2866019 is a monitoring relay used for detecting overcurrent conditions in single-phase AC or DC systems. It monitors currents across three selectable ranges (up to 100 mA, 1 A, and 10 A) and features a separately adjustable response delay from 0.2 to 10 seconds. The device provides a single PDT floating contact output with a maximum switching voltage of 250 V AC. Its supply voltage is made variable via an external power module, accommodating a range from 24 V to 230 V AC or 24 V DC. This relay is ideal for applications in plant, automation, and power engineering where continuous monitoring of system parameters is crucial for maintaining safety and operational availability.