The Siemens SENTRON 3VA2116-5JP32-0AE0 is a 3-pole molded case circuit breaker (MCCB) rated for 160 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. It is designed for line protection in distribution panels and switchgear, with a breaking capacity of 187 kA at 240 V AC, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V.
The 160 A continuous rating is flat across the operating temperature band — no derating curve to calculate. The 187 kA interrupting rating at 240 V tells you this breaker can clear a fault at that level without upstream cascading; at 690 V the same unit still interrupts 3.7 kA. The 3-pole construction with 4 auxiliary switches (HQ design) gives you spare N/O and N/C contacts for status feedback or interlocking. The communication function means it can report trip events and load data over a bus — useful for a line-down root-cause trace.