What it is and what the ratings mean for fit
The Siemens SENTRON 3VA1196-6EF32-0AD0 is a 3-pole molded case circuit breaker (MCCB) rated for a continuous current Iu of 16 A, with a TM240 thermal-magnetic overcurrent release. The 220 kA breaking capacity at 240 V means this breaker can safely interrupt a fault current up to that level without failing — critical for high-fault installations like transformer secondaries or large motor control centers where available fault current is substantial. At 415 V the rating is 154 kA, at 440 V it is 121 kA, and at 690 V it drops to 17 kA; the buyer must match the interrupting rating at the system voltage, not just the highest number. The 16 A rating holds flat from 40 °C to 50 °C (–), then derates linearly to 14.4 A at 70 °C — per the datasheet, no adjustment needed for panels running up to 50 °C ambient.
Dimensions and panel integration
The breaker measures 76.2 mm wide, 130 mm high, and 70 mm deep. The 76.2 mm width is a standard 3-pole MCCB footprint — it occupies three 25.4 mm module positions on a DIN rail or panel-mount base. The 70 mm depth includes the arc chamber and terminals; verify clearance behind the panel for the rear-mounted auxiliary switch block (3 auxiliary switches HQ per). Front IP40 protection means tools or fingers above 1 mm diameter are kept out, but the enclosure itself is not sealed against moisture — install in a suitable cabinet for washdown or outdoor environments.