What it is and what it does
The Siemens 3VA1180-4ED32-0AA0 is a SENTRON molded case circuit breaker (MCCB) designed for line protection — the main disconnect and fault interrupter in a distribution panel, motor control center, or industrial switchboard. It carries 80 A continuous at 40 °C and holds that rating up to 50 °C before derating begins (78 A at 55 °C, 74 A at 70 °C). The TM210 thermal-magnetic release handles overloads and short circuits without external power, so it's a standalone protective device — no undervoltage release, no communication module, no ground-fault monitoring on this variant.
Breaking capacity — what the numbers mean for your panel
The interrupting rating at 415 V is 75.6 kA — that's the fault current this breaker can safely clear without welding contacts or rupturing the case. At 240 V it handles 121 kA, at 440 V it's 52.5 kA, and at 690 V it drops to 11.9 kA. For a 400 V industrial feeder, 75.6 kA gives headroom above typical utility fault levels (often 25–50 kA), so you can use it downstream of a larger main without worrying about cascading failure. The insulation voltage is rated 800 V, meaning the internal creepage and clearance are designed for 690 V systems.
Mounting and panel fit
Three-pole, 70 mm deep, 76.2 mm wide, 130 mm tall. That width is a standard 3-inch footprint — it drops into a typical MCCB slot without needing a filler plate. The 70 mm depth means it clears most 200 mm-deep enclosures with room for wiring gutters. Rated power loss is 19.2 W maximum, so in a sealed panel with multiple breakers you'll want to check the thermal rise against the enclosure's dissipation curve.