The Siemens 3RS7002-1DE00 is a SIRIUS single-range signal converter that takes a 0-20 mA input and delivers a 4-20 mA output on a single channel. It's an active design, meaning it powers the loop — no separate loop supply needed for the output side. The 4-20 mA output is the industrial standard for noise-immune transmission over longer cable runs, so this part cleans up a 0-20 mA sensor signal into something a PLC analog input card can read reliably at the other end of the panel. Galvanic isolation between input and output means ground loops between the sensor and the controller don't corrupt the measurement. That's the difference between a reading that drifts with the motor starting and one that stays put.
Height is 93 mm, depth 72.5 mm. Zero clearance needed on all sides (up, down, forward, backward, sideways), so you can pack it tight against other modules without worrying about airflow or wiring access.
Electrical performance that matters for the BOM
Consumed active power is 0.29 W — negligible in a panel thermal budget, but it means the converter doesn't need forced cooling even in a sealed enclosure at 60 °C ambient. The temperature drift is 0.015 %/°C, so over a 40 °C swing in a non-conditioned cabinet the output shifts less than 0.6 % of span. That's tight enough for most process monitoring but worth noting if your spec calls for better than 0.5 % accuracy across the full range. Maximum voltage ripple on the input is 20 mV — the converter rejects supply noise well, so you don't need an external filter for a moderately clean 24 V bus.