The Siemens SENTRON 3VA1080-4ED32-0KA0 is a 3-pole molded case circuit breaker rated for 80 A continuous current with a TM210 thermal-magnetic overcurrent release. Its breaking capacity hits 121 kA at 240 V and 75.6 kA at 415 V, so it handles high-fault utility feeds without cascading upstream. The 800 V rated insulation voltage (Ui) covers most 480/600 V distribution panels. No undervoltage release, no auxiliary contacts, no communication module — this is a straight line-protection breaker for a main or feeder position where you don't need remote status.
Thermal derating and panel fit
The 80 A rating holds flat through 50 °C ambient; above that it steps down to 76.8 A at 55 °C and 72 A at 70 °C. If the panel runs hot near the top of a sealed enclosure, factor that 10 % drop into your load budget. The 76.2 mm width and 70 mm depth fit a standard 3-pole MCCB footprint on the DIN rail or panel-mount backplate — no surprises swapping into an existing SENTRON or 3VA cutout.