What this 3VA MCCB delivers
The Siemens 3VA1110-5EE46-0AA0 is a 4-pole molded case circuit breaker from the SENTRON family, set up for line protection with a TM220 thermal-magnetic release. Rated 100 A continuously at 40 °C, it holds that rating through 50 °C before a slight derate curve kicks in — 98 A at 55 °C, 96 A at 60 °C, down to 91 A at 70 °C. That thermal stability matters when the breaker sits in a warm panel next to other heat sources. Short-circuit interrupting capacity is the headline: 187 kA at 240 V AC, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 500 V and 690 V. That's a high-fault rated MCCB — it clears serious energy without upstream coordination headaches, assuming the rest of the selective chain is specced to match. Rated insulation voltage is 800 V, operating voltage at AC is 690 V. The front face carries IP40 protection — fine for a clean indoor panel, but not for washdown or outdoor exposure. No undervoltage release, no ground-fault monitoring, no communication module on this variant. It's a straight line-protection breaker: feed it, protect the cable, trip on overload or short-circuit.
Integration notes
Power loss at full rated current is 25 W maximum. That's moderate for a 100 A, 4-pole MCCB — account for it in enclosure thermal calculations, especially if the panel is densely packed. Storage temperature range is -40 °C to 80 °C; operating ambient is -25 °C to 70 °C.