What this MCCB delivers in the panel
The Siemens SENTRON 3VA1110-4ED26-0AA0 is a 2-pole molded case circuit breaker rated 100 A continuous, built for line-protection duty in distribution panels. The TM210 thermal-magnetic release gives you fixed short-circuit pickup at 1000 A (10× In) and a thermal curve that holds full 100 A up to 50 °C, then derates to 91 A at 70 °C — useful when the breaker sits in a warm enclosure near other heat sources. Breaking capacity hits 121 kA at 240 V and 75.6 kA at 415 V, so it handles high-fault utility feeds without cascading upstream. Rated insulation voltage is 500 V, with a max DC operational voltage of 250 V per pole — check the 3VA device manual if you're switching DC loads.
Physical fit and panel integration
The breaker measures 70 mm deep, 50.8 mm wide (2 inches), and 130 mm tall. Two inches per pole means a 2-pole unit occupies roughly 4 inches of DIN-rail width — standard for the SENTRON 3VA family. Front IP40 keeps dust out of the enclosure cutout; the rest of the body is open to the panel interior. Maximum power loss is 16.66 W, which contributes to the enclosure thermal budget. Operating range spans -25 °C to 70 °C; storage extends from -40 °C to 80 °C.