The Siemens SENTRON 3VA1096-3ED32-0JC0 is a 3-pole molded case circuit breaker rated for 16 A continuous current at 40 °C, with a TM210 thermal-magnetic overcurrent release. The 16 A rating holds steady through 50 °C and only begins to derate above 55 °C, down to 14.4 A at 70 °C. That means in a warm panel — say 55 °C ambient — you still get 15.36 A of continuous rating, so the breaker doesn't nuisance-trip on a lightly loaded feeder. Breaking capacity drops with voltage: 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at 690 V. For a 400 V system, the 52.5 kA figure is what matters — it covers most industrial service-entrance and sub-feed applications.
Width at 76.2 mm is a standard 3-module footprint on DIN rail, so it swaps into existing SENTRON or 3VA cutouts without panel modification. The 15 000-cycle latching endurance is typical for a 16 A MCCB on resistive or light motor loads.