SIRIUS Current/Voltage Measuring Module with Overload Protection
Siemens SIRIUS 3UF7120-1AA01-0 is a current and voltage measuring module that also provides overload protection with a trip class CLASS 5E curve, sized for motor and energy monitoring applications in control panels. Rated voltage detection from 110 V to 690 V AC at 50 or 60 Hz, with current detection and power measurement included. Frequency measurement is also onboard. Energy measurement accuracy is ±5 % over 0.25–8 A and ±10 % from 8 A to 32 A, within the voltage range 0.85 x 110 V to 1.1 x 690 V, cos phi 0.5 to 1.0, at 25 °C. Mounts via screw and snap-on mounting with any orientation. Dimensions are 45 mm wide, 84 mm high, 64 mm deep, with top and bottom clearance of 30 mm; left and right clearance is 0 mm. IP20. Altitude: 2 000 m standard, 3 000 m at +50 °C, 4 000 m at +40 °C. Vibration resistance: 1–6 Hz / 15 mm, 6–500 Hz / 2 g, with basic unit snapped on derated to 1 g. Inrush current maximum 40 A (10 x nominal).