The Siemens SENTRON 3VA4190-6ED34-0AA0 is a 3-pole molded-case circuit breaker (MCCB) built for system protection in industrial panels. Its 100 kA interrupting rating at 240 VAC and 65 kA at 480 VAC mean it can clear high-fault currents without upstream coordination issues — critical for feeder circuits in mills or processing plants where fault levels run high. The TM210 thermal-magnetic release gives fixed thermal and magnetic trip settings, so you set it once and forget it.
Ratings and what they mean for fit
Rated 90 A at 40 °C, the breaker derates to 77 A at 70 °C — that thermal curve matters if your panel runs hot from adjacent drives or transformers. The 690 VAC operating voltage covers 480 V and 600 V class systems, including 600Y/347 V where it still interrupts 25 kA. IP40 on the front keeps dust out of the mechanism but isn't rated for washdown; mount it inside a sealed enclosure if the environment is wet or dusty. Power loss runs 17.7 W maximum — negligible for thermal budgeting in a single breaker, but add up a dozen in a panel and it's enough to raise internal ambient a few degrees. The -25 °C to 70 °C operating range covers most plant-floor conditions, though storage down to -40 °C means it can sit in an unheated warehouse without damage.