The Siemens SENTRON 3VA4130-6ED34-0AA0 is a 3-pole molded-case circuit breaker (MCCB) with a TM210 thermal-magnetic overcurrent release, designed for system protection in distribution panels and motor branch circuits. It carries a continuous current rating of 30 A at 40 °C, derating to 26 A at 70 °C — a curve worth checking if the panel runs hot. The interrupting capacity is 100 kA at 240 V AC and 65 kA at 480 V AC, which gives solid SCCR headroom for most industrial service-entrance and feeder applications.
At 240 V AC this breaker clears 100 kA symmetrical — that's full-rated for a 100 kA SCCR panel. At 480 V AC it still handles 65 kA, which covers most 480 V distribution boards without an upstream current-limiting fuse. The 65 kA figure repeats at 480Y/277 V; at 600Y/347 V it drops to 25 kA, so check the available fault current if the system runs at 600 V class.
At 45 °C it's 29 A, at 55 °C it's 28 A, at 70 °C it's 26 A. Operating range is -25 °C to 70 °C; storage from -40 °C to 80 °C. Front IP40 means it's splash-resistant in the panel face but not washdown-rated.