What it is — and what the ratings actually mean
This is a Siemens SENTRON 3VA1080-3ED32-0BA0 molded case circuit breaker (MCCB) — 3-pole, line-protection design, fitted with a TM210 thermal-magnetic overcurrent release and an undervoltage release (UVR). Rated 80 A continuous from 40 °C through 50 °C, it derates to 74 A at 70 °C; that thermal curve is the one that governs real panel loading, not the 80 A nameplate. The TM210 release provides fixed thermal and magnetic trip thresholds for standard feeder and branch-circuit protection — no field adjustment, so get the frame right the first time.
Breaking capacity — what voltage is on your bus?
Breaking capacity climbs with bus voltage: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at both 500 V and 690 V. That 7.5 kA at 690 V is the weak point — if your system fault current exceeds that at 690 V, this frame won't clear it safely. Match the interrupting rating to the available fault current at your specific line voltage, not the highest kA figure.
DIN-rail footprint and panel fit
Width 76.2 mm (3 in), depth 70 mm (2.76 in), height 130 mm (5.12 in). Standard 3-pole MCCB footprint — mounts on DIN rail, no special bracket. The 70 mm depth keeps it clear of shallow enclosure doors; check gland-plate clearance if the panel is pre-wired.