Siemens Overload Relay SIRIUS 3Rb2 55 ... 250A 230/24VAC/VDC Class 5/Class 10/Class 20/Class 30 1NC + 1NO 3RB2 Series

Overload, phase failure and phase asymmetry protection. Own power supply. Manual and automatic reset. Contact position indicator. TEST function and self-diagnostics. Direct mounting on 3RT10 contactors. Screw connection system (on auxiliary current side). Safety standards: Atex 94/9/EC, EN60079-7.