The Siemens SENTRON 3VA2216-6HK42-0KC0 is a 4-pole molded case circuit breaker rated for 160 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. That 160 A holds steady at every temperature step in between, so you don't have to oversize for a warm panel. Its interrupting ratings climb to 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 42 kA at 690 V. The ETU340 electronic trip unit handles the protection curve. Neutral protection is adjustable OFF, 50%, or 100% of the phase current.
The 140 mm width for a 4-pole frame tells you the pole spacing; verify your busbar or lug kit matches the SENTRON 3VA footprint before you drill. An optional motor drive can be added for remote switching, and the unit accepts communication modules if you need to tie it into a higher-level monitoring system.