Siemens AG Monitor - Relay Output 3UG45821AW30

Insulation monitoring relay for ungrounded (IT) supply systems up to 250 V AC and 300 V DC, with a measuring range of 1-100 kΩ, operating on a control supply voltage of 24-240 V AC/DC, and rated for a line frequency of 15-400 Hz. Equipped with one change-over contact rated for 4 A, screw-type terminals supporting 0.75-2.5 mm² conductors, and a tightening torque of 0.6-0.8 N·m. Mounts on a 35 mm standard rail with dimensions of 22.5 mm width, 78 mm height, and 100 mm depth. Features error memory, operates in ambient temperatures from -25 to +60 °C, and has IP20 protection. Surge voltage resistance is 6 kV.