SENTRON 3VM1180-5ED32-0AA0 — 80 A MCCB with TM210 trip
The Siemens SENTRON 3VM1180-5ED32-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying 80 A continuously at 40 °C through 50 °C before the thermal derating curve begins to pull current back — 78 A at 55 °C, 77 A at 60 °C, 75 A at 65 °C, and 74 A at 70 °C. The TM210 overcurrent release is a thermal-magnetic design — thermal element handles the overload curve, magnetic element catches short-circuit events.
Breaking capacity — what the voltage columns mean for your bus
The interrupting ratings climb as system voltage drops: 187 kA at 240 V AC, 121 kA at 415 V, 76 kA at 440 V, and 17 kA at 500 V. For a 480 V panel (common in North America), the 76 kA at 440 V is the closest published figure — the actual SCCR at 480 V will sit between the 440 V and 500 V columns, so coordinate with the upstream transformer impedance and let the selectivity study confirm the available fault current stays under the breaker's capability at that voltage.
Panel fit and physical constraints
Front-side IP40 protection. Rated insulation voltage 800 V. Maximum power loss 19 W.