What this MCCB carries
The Siemens SENTRON 3VA1196-4EF36-0AH0 is a 3-pole molded case circuit breaker rated for line protection, carrying 16 A continuous current (Iu) with a TM240 thermal-magnetic release. Its interrupting capacity hits 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V — so it handles high-fault utility feeds or transformer secondaries without cascading upstream. The TM240 release is fixed, not adjustable — what you see on the nameplate is what trips. No undervoltage release, no shunt trip, no communication module. It ships with 2 auxiliary switches plus a separate trip alarm switch (HQ type), so you get status feedback without adding a stack-on block.
Thermal derating and panel fit
Rated 16 A from 40 °C through 50 °C ambient. At 55 °C it derates to 15.36 A, at 60 °C to 15.04 A, at 65 °C to 14.72 A, and at 70 °C to 14.4 A. If your panel ambient runs hot — say, next to a drive or transformer — size the load for the 70 °C figure and you won't nuisance-trip. Dimensions: 130 mm tall, 76.2 mm wide, 70 mm deep. That 70 mm depth is shallow enough for most 200 mm deep enclosures; the 76.2 mm width (roughly 3 inches) is standard for a 3-pole MCCB footprint. Front IP40 keeps dust out of the handle and trip-indicator window.
Lifecycle and sourcing
Mechanical endurance rated at 15,000 operations — typical for a 16 A MCCB in distribution duty. Storage range from -40 °C to 80 °C; operating range -25 °C to 70 °C. The storage limit covers shipping and warehouse, not running.