Siemens SENTRON 3VA1110-6FD46-0AA0 — 100 A 4-Pole MCCB, Line Protection
Breaking capacity is the headline: 220 kA at 240 V AC, 154 kA at 415 V, and 121 kA at 440 V. Dimensions are 101.6 mm wide, 130 mm high, and 70 mm deep, fitting standard SENTRON 3VA panel cutouts and busbar systems.
Thermal Derating and Endurance
Above that, derate linearly: 98 A at 55 °C, 96 A at 60 °C, 94 A at 65 °C, and 91 A at 70 °C. In a sealed, uncooled panel near other heat sources, that 91 A at 70 °C is the real-world limit — not the nameplate 100 A. Maximum power loss is 25 W. That's the heat the breaker dumps into the enclosure — relevant for thermal simulation of a multi-breaker panel. The N-conductor protection is set at 50% of the phase rating, which is the standard for harmonic-rich loads (e.g., VFD-fed systems with significant triplen harmonics on the neutral).