Line protection MCCB with high interrupting capacity
The Siemens 3VA1196-6GF42-0AA0 is a SENTRON molded case circuit breaker (MCCB) rated for line protection, carrying a 16 A continuous current and a TM240 thermal-magnetic overcurrent release. The 4-pole design handles three-phase plus neutral, and the interrupting capacity reaches 220 kA at 240 V, 154 kA at 415 V, and 121 kA at 440 V — figures that suit high-fault industrial distribution where upstream transformer capacity or parallel sources drive available fault current above typical MCCB ratings. At 500 V and 690 V the rating drops to 17 kA, so verify the point-of-installation SCCR against those higher voltage levels.
Thermal derating and panel integration
Full 16 A rating holds from 40 °C up to 55 °C ambient; at 60 °C it derates to 15 A, and at 70 °C it holds at 15 A. The enclosure front carries IP40 protection — suitable for dry indoor panel environments where tools or fingers are the main concern, not washdown. Dimensions are 130 mm height, 101.6 mm width, and 70 mm depth, fitting standard MCCB mounting footprints. Maximum power loss is 10.6 W, which matters for thermal budgeting inside a sealed enclosure.