What this MCCB carries and where it fits
The Siemens 3VA1110-6GE42-0AA0 is a SENTRON molded case circuit breaker (MCCB) rated for 100 A continuous current (Iu) with a 4-pole configuration, making it the right fit for three-phase plus neutral distribution in commercial and industrial switchboards. The TM220 thermal-magnetic release handles overload and short-circuit protection without external trip units — a fixed-release design that simplifies specification and reduces the chance of misconfiguration on the line. Its interrupting capacity hits 220 kA at 240 V AC, dropping to 154 kA at 415 V and 121 kA at 440 V — figures that place it in the high-breaking category for large fault-current installations like transformer secondaries or busway feeds. At 500 V and 690 V the rating settles to 17 kA, so verify the available fault current at your service voltage before committing the BOM line. The 100 A rating holds flat from 40 °C through 50 °C, then derates gradually to 91 A at 70 °C — useful if the breaker lives in a warm enclosure or near other heat sources. Rated insulation voltage is 800 V, and the DC operational voltage maxes out at 600 V, so it can serve in DC-coupled PV or battery circuits within that limit.
Lifecycle and sourcing posture
Power loss is rated at 25 W maximum — negligible for panel thermal budgeting but worth noting if the breaker shares a small enclosure with other heat-generating gear. Front-face protection is IP40, meaning tools or fingers won't contact live parts, but the sides and base are open to the switchboard environment; no washdown rating here.
Integration notes
Dimensions are 130 mm high, 101.6 mm wide, and 70 mm deep — a standard 4-pole MCCB footprint that drops into most SENTRON distribution panels and third-party switchboards using the same bolt-on or plug-in base. The N-conductor protection is rated at 100 %, meaning the neutral pole carries full rated current without derating, which matters for systems with high harmonic content or non-linear loads. No communication function onboard — this is a straight protection device, not a metering or communicating breaker. If you need remote trip indication or power monitoring, you'll add auxiliary switches or a separate power meter upstream. The motor-drive option (Product Extension / Optional / Motor Drive: Yes) allows remote motorized operation for genset or transfer-switch applications.