What this 1P+N MCB does — and what the meters mean for a panel
What sets it apart from a plain MCB is the integrated metering: an ammeter, voltmeter, wattmeter, frequency meter, and reactive power meter are built into the same 18 mm footprint. That means one device handles both overcurrent protection and sub-metering for a single-phase circuit — no separate panel meter, no extra wiring, no lost DIN slots. Accuracy on the current and voltage measurements is 0.5 %, referenced to IEC61557-12, IEC62053-22, and IEC62053-23. The neutral pole is switched, so it disconnects both L and N when tripped. This is a current-production part — lifecycle stage is active, so it's still a standard catalog line from Siemens, not an end-of-life or NRND item.
Standards and compliance — what the approvals cover
Certified to IEC/EN 60898-1 and GB/T 10963.1. Energy limitation class is 3. Sealable design with separate L and N terminals.