What this 160 A MCCB carries — and what it doesn't
The Siemens 3VA2116-5HL32-0HA0 is a 3-pole SENTRON molded case circuit breaker rated for 160 A continuous current, with an ETU320 electronic trip unit and a built-in shunt trip release (STL). Interrupting capacity hits 187 kA at 240 V, 121 kA at 415 V and 440 V, 79 kA at 500 V, and 4.25 kA at 690 V — so the SCCR headroom is substantial on lower-voltage secondary taps, but drops off sharply above 500 V. This is the line protection version (no ground-fault monitoring, no communication module, no auxiliary contacts, no undervoltage release). If you need those, you're looking at a different suffix.
Thermal derating and panel fit
At 40 °C, 45 °C, and 50 °C it holds the full 160 A. Derating starts at 55 °C (154 A), then 148 A at 60 °C, 142 A at 65 °C, and 136 A at 70 °C. If your enclosure runs hot, that 136 A at 70 °C is the number to design for. Dimensions: 181 mm high, 105 mm wide, 86 mm deep. That 105 mm width is a standard 3-pole MCCB footprint — it'll drop into most SENTRON panelboards and DIN-rail adapters without a fight. Maximum power loss is 25.5 W. That's modest for a 160 A frame, but in a sealed, high-density panel, add it to your thermal budget.
Lifecycle and sourcing reality
The supplied basic switch is 3VA2116-5HL32-0AA0, and the integrated auxiliary trip is 3VA9688-0BL30. If you're replacing just the trip unit or the switch body, those are the sub-components to cross-reference.