What this SENTRON RCBO does on the rail
The Siemens 5SV6016-7MC32 is a 1P+N RCBO from the SENTRON family — a compact unit that combines overcurrent protection and residual current detection in one 18 mm-wide module. It sits on a DIN rail, takes up one modular width, and is rated for a 6 kA breaking capacity per EN 60898-1 at 230 V AC. That C-curve trip characteristic means it handles moderate inrush from motor starters or small transformers without nuisance tripping, while still clearing a fault fast. The rear side carries IP20 protection; the front face is IP40, so it's fine inside a standard panel but not meant for washdown. What sets this one apart from a plain MCB is the built-in metering. It measures voltage, current, active power, apparent power, reactive power, active energy, line frequency, power factor, temperature, switching cycles, operating hours, and trip events — and it displays them on the front. Accuracy on voltage and current is 0.5 %; on active and apparent power it's 1 %. That's enough to track load trends on a pump or conveyor leg without adding a separate power meter.