The Siemens SENTRON 3VA1196-4EF32-0KC0 is a 3-pole molded case circuit breaker (MCCB) rated for 16 A continuous current at 40 °C, with the same 16 A rating holding steady through 55 °C before derating to 15 A at 60 °C and above. That means in a warm panel — say a motor control center running near 50 °C — you still get the full 16 A without having to oversize the breaker. Breaking capacity is 121 kA at 240 V, dropping to 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at both 500 V and 690 V. Rated insulation voltage 800 V.
The 70 mm depth means it fits in shallow enclosures where a deeper MCCB would hit the gland plate or door. The shunt trip and auxiliary switches add a bit of height on the side, but the base dimensions stay the same.