The Siemens SENTRON 3VA1196-4EF32-0AE0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying a 16 A continuous current at 40 °C and a 121 kA interrupting capacity at 240 VAC — that is the short-circuit rating that determines whether this breaker clears a fault before the upstream device sees it, so selectivity studies hinge on this number.
The interrupting rating drops as voltage rises: 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at both 500 V and 690 V. For a 480 V panel the relevant figure is the 440 V column (the next-higher standard voltage class), so coordination with downstream feeders should use 52.5 kA as the let-through ceiling.
The TM240 thermal-magnetic release holds 16 A from 40 °C through 55 °C, then drops to 15 A at 60 °C and 65 °C, and 15 A at 70 °C. For a panel that runs hot — say a sealed enclosure near a furnace line — the 15 A ceiling at 60 °C is the figure to use for the branch-circuit load, not the nameplate 16 A.
The 70 mm depth means it clears most standard 200 mm deep enclosures with room for rear-mounted busbars; the 76.2 mm width (3 inches) matches the standard SENTRON 3-pole MCCB footprint, so a panel laid out for a 3VA11 or 3VA13 series breaker accepts this unit without drilling new mounting holes.