The Siemens 3RS7005-2KW00 is a SIRIUS multi-range signal converter — an active, switchable device that takes a 0-10 V, 0-20 mA, or 4-20 mA input and converts it to a frequency output selectable at 0-50 Hz, 0-100 Hz, 0-1 kHz, or 0-10 kHz. It runs on a universal 24-240 V AC/DC supply, draws 0.34 W, and snaps onto a DIN rail at 17.5 mm wide — a single-width module that fits tight panel layouts without side clearances.
The input accepts three common industrial analog signals — 0-10 V, 0-20 mA, and 4-20 mA — so it interfaces directly with most PLC analog output cards, pressure transmitters, or temperature transducers without external signal conditioning. The output is a frequency signal, not a voltage or current loop, which means it drives frequency-input devices like speed displays, counters, or frequency-to-analog converters downstream. The 0.015 %/°C temperature drift means the conversion accuracy holds tight across a panel's thermal cycle; at a 40 °C swing the drift is under 0.6 % of span. The 17.5 mm width and snap-on mounting mean it occupies one standard DIN-rail position — no extra space needed above, below, or to the sides (all clearances are 0 mm).
Signal converters like this one sit between an analog sensor or controller output and a device that expects a frequency input — for example, converting a 4-20 mA flow transmitter signal to a 0-1 kHz pulse train for a remote totalizer, or translating a 0-10 V speed reference from a PLC into a 0-50 Hz signal for a variable-frequency drive that accepts frequency setpoints. The universal AC/DC supply means it works in both 24 VDC control panels and 230 VAC distribution panels without a separate power supply module.