The Siemens 3UF7100-1AA00-0 is a SIRIUS current measuring module designed for overload protection in motor feeder applications. It measures current without requiring voltage detection, and provides a trip class 5E response — meaning the module trips within that time-current band for overcurrent conditions. It operates on AC supply voltages from 110 to 690 V at 50-60 Hz and consumes just 0.2 W active power.
Operating range and derating
Rated -25 to +60 °C, IP20, altitude derating: full to 2 000 m, then 3 000 m at +50 °C max, 4 000 m at +40 °C max; vibration 1-6 Hz / 15 mm and 6-500 Hz / 2 g.
Lifecycle status is current — Siemens still produces this order code, so no last-time-buy or discontinuation concern. We source the 3UF7100-1AA00-0 to order against an RFQ; expect standard lead times for SIRIUS motor protection modules.
The module is 45 mm wide and 84 mm high, mounts via screw or snap-on in any orientation, requires 30 mm clearance above and below (sides 0 mm), and has a 7.5 mm cable inlet.