The Siemens SENTRON 3VA1180-6EE32-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated 80 A continuous at 40 °C, built for line protection in distribution panels. Its TM220 thermal-magnetic release handles overload and short-circuit faults without an external trip unit — a fixed, non-interchangeable release that keeps the footprint tight.
Breaking capacity and voltage rating
Breaking capacity is what drives the panel fit for this MCCB. At 240 V it interrupts 220 kA — a very high figure that suits it for large transformer-fed switchboards or high-fault industrial services. At 415 V it still holds 154 kA, dropping to 121 kA at 440 V. Above 500 V the rating steps down to 17 kA, same at 690 V, so on 480/277 V or 600 V systems confirm the available fault current against the 500 V / 690 V column. The rated insulation voltage is 800 V, which covers most low-voltage networks.
Thermal derating and enclosure integration
The 80 A rating holds flat from 40 °C through 50 °C — no derating needed in a typical 40 °C panel ambient. Above that it steps down: 78 A at 55 °C, 77 A at 60 °C, 75 A at 65 °C, 74 A at 70 °C. If the breaker sits in a sealed enclosure or next to heat-generating gear, use the 55 °C or 60 °C column for the continuous load limit. Maximum power loss is 19.2 W, which matters for thermal rise in a multi-breaker lineup. The unit measures 130 mm high, 76.2 mm wide, 70 mm deep — a standard 3-pole MCCB footprint that fits most DIN-rail or panel-mount assemblies. Front IP40 protects against tool entry; the body is not sealed for washdown.