What this 4-pole MCCB carries
Its interrupting capacity reaches 187 kA at 240 V AC, 121 kA at 415 V AC, and 76 kA at 440 V AC — figures that cover most industrial distribution panels where high fault current is a concern. That simplifies ordering but means you size the breaker to the load, not the other way around. For a 4-pole breaker at this current level, the 100% N-conductor protection means the neutral pole is fully rated, not reduced — important for panels feeding nonlinear loads where neutral harmonics can run hot.
The breaker holds 100 A continuously up to 50 °C ambient. Above that it derates: 98 A at 55 °C, 96 A at 60 °C, 94 A at 65 °C, and 91 A at 70 °C. Maximum power loss is 25 W, which matters for thermal budgeting inside a crowded panel.
What the interrupting ratings mean in practice
At 415 V (common in European industrial systems) it's still 121 kA, and at 440 V it drops to 76 kA. The key takeaway: this breaker is sized for high-fault locations, not just routine branch protection.
As a Siemens SENTRON product, the 3VA1110-5GD46-0AA0 carries CE marking for the European market and is designed to IEC 60947-2. UL and CSA listings are standard for the 3VA family, though specific file numbers should be confirmed against the nameplate. RoHS and REACH compliance documentation is available from Siemens' support portal.