What this SENTRON 3VA breaker is and where it fits
Siemens 3VA1096-3ED46-0AA0 is a SENTRON molded case circuit breaker (MCCB) for line protection, rated 16 A continuous with four poles. The TM210 thermal-magnetic release handles overload and short-circuit protection in one unit — the thermal element tracks load heating, the magnetic element trips instantaneously on fault currents up to the adjustable short-circuit release setting of 320 A. Breaking capacity runs 75.6 kA at 240 V, 52.5 kA at 415 V, and 32 kA at 440 V, so it clears high-fault conditions in industrial distribution without cascading upstream. The IP40 front protection means it's suited for enclosed panel mounting where the front face is accessible but internal live parts stay behind the door.
Temperature derating and panel integration
Full 16 A rating holds at 55 °C ambient; above that it derates to 15 A at 60 °C and 15 A at 70 °C. The operating range spans -25 °C to 70 °C, storage from -40 °C to 80 °C. Dimensions are 130 mm height, 101.6 mm width, 70 mm depth — the 4-pole width (roughly 4 inches) determines DIN-rail or mounting-plate spacing. Power dissipation at rated load is 10.6 W maximum, so factor that into enclosure thermal calculations if the panel is densely packed.