What this MCCB is for
The Siemens SENTRON 3VM1180-4ED32-0AA0 is a 3-pole molded case circuit breaker (MCCB) designed for line protection in distribution panels. It carries a TM210 thermal-magnetic release — thermal for overload, magnetic for short-circuit — and is rated 80 A continuously at 40 °C, derating to 74 A at 70 °C. That thermal curve matters if this breaker sits in a hot panel or next to other heat sources; the 80 A number is only good at 40 °C ambient.
Breaking capacity — what the numbers mean
This MCCB delivers 121 kA at 240 V AC, 76 kA at 415 V, 53 kA at 440 V, and 12 kA at 500 V. Those are the short-circuit current ratings (SCCR) at each voltage level — the maximum fault current the breaker can safely interrupt without welding contacts or rupturing the case. For a 480 V panel, the 53 kA figure at 440 V is the closest reference; if your available fault current exceeds that, you need a current-limiting upstream device or a higher-rated frame.
Physical fit and panel integration
The breaker measures 130 mm high, 76.2 mm wide, and 70 mm deep — a standard 3-pole MCCB footprint that fits most DIN-rail or panel-mount enclosures without surprises. The 70 mm depth is short enough for shallow backpanels; check gland-plate clearance if you're mounting it near the enclosure door. Power loss is 19 W maximum, so factor that into thermal rise if the panel is densely packed.