The Siemens 3RS7002-1CE00 is a SIRIUS single-range signal converter — an active device that accepts a 0-20 mA input and reproduces a 0-20 mA output on a single channel. It's built for control cabinets where you need to isolate or condition a 4-20 mA loop signal without losing accuracy. Galvanic isolation between input and output is present, so ground loops between field transmitters and the PLC analog card get broken. The 0.015 %/°C temperature drift means a 10 °C swing shifts the output by 0.15 % of span — tight enough for most process monitoring. Input and output are both rated at 24 V AC/DC nominal, with a 30 V max input voltage and 20 mV maximum ripple. The converter draws 0.29 W active power, so it won't load the 24 V bus noticeably.
The 6.2 mm width is the standout dimension — it's the same footprint as a standard miniature circuit breaker or slim relay, so it fits into high-density terminal blocks without wasting DIN rail space. Clearance requirements: zero mm upwards, forwards, backwards, downwards, and to the side. That means you can butt adjacent modules directly against it with no air gap — good for tight enclosures where every millimeter counts. The housing is 93 mm tall and 72.5 mm deep, so it clears most standard cabinet depths.
No end-of-life cross-reference needed at this point. If you're qualifying a second source, the functional match would be another 0-20 mA active isolator in a 6.2 mm package — but the 3RS7002-1CE00 is the Siemens standard.