The Siemens 3VA2116-5HL36-0AE0 is a SENTRON molded case circuit breaker rated for 160 A continuous current across the full 40 °C to 70 °C ambient range — no derating needed up to that ceiling. The 800 V rated insulation voltage gives it headroom for 480 V and 600 V class systems, and the 25.5 W maximum power loss is manageable for a panel's thermal budget if you keep some air gap around the breaker. Breaking capacity is the headline here: 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.
The 3VA2116-5HL36-0AE0 measures 105 mm wide, 181 mm tall, and 86 mm deep. That 105 mm width is a standard 4-module footprint on a DIN rail — it will occupy four 27 mm-wide positions. Operating temperature range is -25 °C to 70 °C, storage from -40 °C to 80 °C. If this breaker lives in an unheated outdoor cabinet in a northern climate, the -25 °C lower limit is fine for most locations; the storage range covers shipping and idle periods. No undervoltage release or shunt trip is built in — if you need remote tripping, you will add an external module.
The 160 A continuous rating is the same at every ambient from 40 °C to 70 °C — that is unusual and useful. Most MCCBs derate as the panel warms up; this one does not, so you can size the feeder for 160 A and not worry about nuisance tripping on a hot summer day. The 800 V rated insulation voltage means the breaker's internal clearances and creepage are designed for 800 V systems, so it is comfortable on 480 V and 600 V networks with margin. For selectivity studies, the 187 kA at 240 V and 121 kA at 415 V give you the let-through curves you need to coordinate with downstream breakers.