What you're looking at
This is a Siemens SENTRON 3VA2116-5HL32-0JH0 molded case circuit breaker — 3-pole, line protection version, rated for 160 A continuous current. The breaking capacity hits 187 kA at 240 V, 121 kA at 415 V, and still holds 79 kA at 500 V. That's a lot of fault-clearing headroom for a 160 A frame; you're not going to run into selectivity issues on the high side unless the upstream gear is underspec'd.
Dimensions are 181 mm high, 105 mm wide, 86 mm deep — standard 3-pole MCCB footprint for a 160 A frame. If you're swapping into a panel that was laid out for a 3VA1010-2ED32-0JA0, check the width — that frame is narrower, so this one may not drop in without a mounting adapter or busbar repositioning.
Above that, it derates: 154 A at 55 °C, 148 A at 60 °C, 142 A at 65 °C, 136 A at 70 °C. If your panel hits 55 °C+ regularly, factor the derate into your load schedule — don't just spec the 160 A nameplate.