What this MCCB carries and where it fits
The Siemens SENTRON 3VA1180-6EF32-0AC0 is a 3-pole molded case circuit breaker rated for 80 A continuous current (Iu) with a TM240 thermal-magnetic release. It's a line-protection device — no undervoltage release, no ground-fault monitoring, no communication module — built for straightforward overcurrent and short-circuit duty in distribution panels. The interrupting ratings tell you where this breaker can sit in the fault-current hierarchy: 220 kA at 240 V, 154 kA at 415 V, 121 kA at 440 V, and 17 kA at 690 V. That 220 kA at 240 V is a high-interrupting-capacity frame — it handles utility-side fault levels without needing a current-limiting fuse upstream, which simplifies coordination in main or tie positions. The TM240 release is fixed (not adjustable for long-time pickup), so the 80 A rating is the only setting. The thermal curve holds full 80 A up to 50 °C ambient; above that it derates to 76.8 A at 55 °C, 75.2 A at 60 °C, 73.6 A at 65 °C, and 72 A at 70 °C. If the panel runs hot, that derating is the number to size against. It ships with 2 auxiliary switches (HQ type) fitted — no separate auxiliary release ordered. The front face carries an IP40 rating, so it's suited for enclosed panel mounting, not washdown environments. Dimensions are 130 mm height, 76.2 mm width, 70 mm depth — a standard 3-pole SENTRON 3VA footprint that drops into the same DIN-rail or screw-mount cutout as other 3VA frames.