What this 160 A MCCB carries
The 3VA2116-5HM42-0CC0: The interrupting ratings climb with the voltage drop: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V. That's unusual; most breakers start derating at 40 °C. If your panel runs hot near a drive or transformer, this holds its rating without a bump in frame size.
Undervoltage release and auxiliary switch fit
The UVR is the design-of-release type, so it's integral, not a field-add-on. Two auxiliary switches (HQ design) are built in, giving you status feedback — open/closed indication to a PLC or a remote panel lamp. No separate aux block to buy and snap on; it's already inside the cover. Ground-fault monitoring uses summation current formation on the L + N conductor — it compares line and neutral current to detect leakage. That's a residual-current method, not a zero-sequence CT, so it works on solidly-grounded systems where you need GF protection without a separate RCD.
No re-drilling or re-bussing needed for a swap.
If you're replacing an older 3VA breaker or cross-referencing from a competitor's frame, the 3VA2116-5HM42-0CC0 drops into the same panel footprint as the 3VA2116-5HL32-0AK0 (same frame, same bus-bar centers). The difference is in the trip unit and accessories — the -5HM42-0CC0 carries the UVR and dual aux switches pre-installed, so you don't need to order those separately.