What this MCCB carries and where it fits
The Siemens 3VA2116-5HL32-0BC0 is a SENTRON molded case circuit breaker (MCCB) rated for 160 A continuous current, 3-pole, with an ETU320 electronic trip unit configured for line protection. The 187 kA breaking capacity at 240 V tells you it handles high-fault utility feeds or transformer secondaries without cascading upstream — that's the number that decides whether your panel's SCCR holds. At 415 V it still interrupts 121 kA, so it's comfortable on 400 V distribution in industrial plants. The undervoltage release (UVR) is built in, which means a voltage dip or intentional drop-out trips the breaker — common on safety-disconnect or emergency-stop circuits where you want the load isolated when control power vanishes.
Thermal derating and panel fit
The 160 A rating holds flat from 40 °C up to 50 °C — no derating needed in a typical ventilated enclosure. At 55 °C it drops to 154 A, and by 70 °C it's at 136 A. If your panel runs hot (stacked drives, transformer nearby), size the load side for the 70 °C figure, not the nameplate. Dimensions are 105 mm wide × 181 mm high × 86 mm deep — standard 3-pole MCCB footprint for a SENTRON 3VA frame. The 86 mm depth means it clears most 200 mm deep enclosures with room for wiring gutters.