What ships in the carton — and what that means for the panel
The Siemens SENTRON 3VA1110-5EE32-0BH0 is a 3-pole molded case circuit breaker (MCCB) rated for a continuous current Iu of 100 A, with a TM220 thermal-magnetic overcurrent release. It ships with an integrated undervoltage release (UVR) and a 2-auxiliary + 1 trip alarm switch pack (HQ version) already fitted — no loose accessories to chase down. The front face carries IP40 protection, so it's suited for standard panel environments where tools or fingers won't contact live parts. At 70 mm deep and 76.2 mm wide, it fits the 3VA family footprint; the 130 mm height clears most distribution board gutters without a shroud.
Breaking capacity — where this MCCB clears faults
The interrupting ratings span the common industrial voltages: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V. That 187 kA figure at 240 V covers high-fault locations like transformer secondaries or large motor control centers; the 121 kA at 415 V handles most European low-voltage distribution. The 690 V rating (17 kA) is lower but still adequate for 690 V drives or mining gear where the available fault current is typically under 10 kA. The TM220 release coordinates well with downstream MCBs — the thermal element handles overloads, the magnetic element clears short-circuits before the upstream breaker sees them.
Thermal derating — the real current you can pull
Rated 100 A continuous from 40 °C through 50 °C ambient. Above that, the TM220 release begins to thermally limit: 96 A at 55 °C, 94 A at 60 °C, 92 A at 65 °C, and 90 A at 70 °C. If the panel runs hot (say, a packed enclosure with drives), plan for the 90 A ceiling at 70 °C. The latching endurance is 15 000 cycles — not a daily-switch duty, but fine for infrequent isolation or backup protection.