Field notes
The 3RU2126-4NB0: The integrated auxiliary switch outputs a 'Tripped' message for PLC or indicator, sharing the same screw terminals. Mounts directly onto the SIRIUS contactor via the built-in fastening method – no separate DIN rail bracket needed. The S0 frame keeps the panel footprint compact at 45 mm wide, 85 mm deep. Temperature compensation from -40 to +60 °C ensures stable trip performance across the panel environment; operational range extends to -40 to +70 °C. The screw terminals accept 2x (0.5 to 2.5 mm²) solid or stranded with a Pozidriv PZ2 bit.