What the breaking capacity ratings mean for your panel
The Siemens 3VA2116-5HL32-0AG0 is a SENTRON molded case circuit breaker (MCCB) rated for 160 A continuous current across three poles, configured for line protection with an ETU320 electronic trip unit. Its interrupting capacity hits 187 kA at 240 V and 121 kA at both 415 V and 440 V, then drops to 79 kA at 500 V and 4.25 kA at 690 V — that 4.25 kA figure at 690 V is the hard ceiling for high-voltage feeders, so verify your available fault current at that voltage before committing the BOM line.
Thermal derating and enclosure fit
The breaker carries its full 160 A from 40 °C through 50 °C ambient, then derates to 154 A at 55 °C, 148 A at 60 °C, 142 A at 65 °C, and 136 A at 70 °C. If your panel ambient runs above 50 °C, size the feeder for the derated value, not the nameplate 160 A. The housing measures 105 mm wide by 181 mm tall by 86 mm deep — fits the standard SENTRON 3VA mounting footprint, so a panel cut for a 3VA2116 frame accepts this unit without rework.