What this 160 A MCCB carries
The Siemens SENTRON 3VA1116-5EF32-0JC0 is a 3-pole molded case circuit breaker rated for 160 A continuous current across the 40 °C to 50 °C ambient range — no derating needed in a typical 40 °C panel. Breaking capacity is 187 kA at 240 V, dropping to 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at both 500 V and 690 V. If you need those, this isn't the variant.
Footprint is 70 mm deep by 76.2 mm wide by 130 mm tall (2.76 by 3 by 5.12 inches). 3-pole width. That's manageable for a 160 A frame, but in a densely packed enclosure you'll want to account for it in your thermal budget — especially if you're stacking multiple breakers side by side without ventilation gaps.