The 3VA2216-5HL32-0BA0 is a Siemens SENTRON 3-pole molded case circuit breaker (MCCB) rated for 160 A continuous current and a 187 kA breaking capacity at 240 V AC — that interrupting rating drops to 121 kA at 415 V, 79 kA at 500 V, and 5.1 kA at 690 V. The 160 A rating holds flat from 40 °C through 50 °C, then derates to 154 A at 55 °C, 148 A at 60 °C, 142 A at 65 °C, and 136 A at 70 °C — so for a 160 A continuous load in a warm enclosure above 50 °C, you need to step up the frame size or improve ventilation.
Depth of 86 mm includes the handle and terminals; leave at least 100 mm clearance in front for the toggle throw and cable bending radius.
Selectivity and coordination — where the 187 kA matters
The ETU320 trip unit supports adjustable I²t curves for selective coordination with downstream MCBs — critical for a tiered distribution panel where you want only the faulted branch to open, not the main. Maximum power loss is 22.2 W, which matters for thermal management in a sealed enclosure.