What this 160 A MCCB does on the line
It carries phase failure detection as standard, so it catches a lost phase before the motor cooks. Interrupting capacity runs 187 kA at 240 V, dropping to 121 kA at 415 V and 440 V, then 75.6 kA at 500 V, and 17 kA at 690 V — that covers most industrial distribution panels up to the 690 V tier without needing a current-limiting upstream breaker.
Thermal derating — what the 160 A means at panel ambient
At 55 °C it derates to 153.6 A, at 60 °C to 150.4 A, at 65 °C to 147.2 A, and at 70 °C to 144 A. That derating curve is the number to size the load against, not the sticker rating.
Auxiliary and trip integration
The basic switch supplied is 3VA2216-5MN32-0AA0. Maximum power loss is 75 W — worth factoring into the enclosure thermal budget if it's in a sealed cabinet.
Physical fit in the panel
That's a standard SENTRON 3VA2 frame footprint — it bolts into the same mounting pattern as other 160 A 3-pole units in the series. No surprises on the gland plate or busbar alignment if you're swapping into an existing Siemens panel.