The Siemens SENTRON 3VA1080-2ED42-0DA0 is a 4-pole molded case circuit breaker (MCCB) rated for 80 A continuous at 40 °C ambient, with a TM210 thermal-magnetic trip unit. It carries a 52.5 kA interrupting capacity at 240 V and 32 kA at 415 V, so it handles high-fault-current service entrance or distribution panels where the available fault current is substantial. That is a standard motor-and-feeder curve, not a selective (short-time-delay) trip. If you need selectivity downstream, pair it with a 3VA with an electronic release; this one is for straightforward branch or feeder protection where coordination is not the primary concern. An undervoltage release (UVR) is factory-fitted. The UVR coil draws from the control circuit, not the line side.
Thermal derating and panel space
At 55 °C it derates to 78 A, at 60 °C to 77 A, and at 70 °C to 74 A (–). That is a standard 4-pole MCCB width — 4 inches on the dot — so it fits existing SENTRON mounting plates and bus-bar systems without adapters. The 21.7 W max power loss is moderate for an 80 A frame; ensure ventilation slots in the enclosure cover are not blocked.