The Siemens SENTRON 3VA2116-5KP32-0CC0 is a 3-pole molded case circuit breaker (MCCB) rated for 160 A continuous current (Iu) across the 40 °C to 50 °C band — no derating needed until you hit 55 °C, where it drops to 154 A, then 148 A at 60 °C, 142 A at 65 °C, and 136 A at 70 °C. That 160 A frame means it handles a 160 A bus or feeder without forced cooling in most industrial enclosures. The breaking capacity tells you where it can sit: 187 kA at 240 V AC, 121 kA at 415 V and 440 V, 79 kA at 500 V, and 4.25 kA at 690 V. At 690 V the 4.25 kA is modest; this breaker is not your primary choice for 690 V distribution unless the available fault current is known to be low. The undervoltage release is built in; if your control voltage drops, the breaker opens without a separate shunt trip module. Two high-quality auxiliary switches report position back to the PLC or status panel. No phase-failure detection and no ground-fault monitoring module are fitted on this variant — if you need those, you're looking at a different suffix.
The 86 mm depth means it clears a 100 mm deep enclosure backplate with room for wiring gutters.