The Siemens 3VA1110-5EF36-0AG0 is a 3-pole molded case circuit breaker from the SENTRON family, rated 100 A continuous at 40 °C and carrying a 187 kA interrupting capacity at 240 V — that is the headline number for fault clearing on a low-voltage distribution board. The TM240 thermal-magnetic release handles overload and short-circuit protection for line-feeder duty, and the breaker holds its full 100 A rating up to 50 °C before starting a gentle derating curve: 98 A at 55 °C, 96 A at 60 °C, 94 A at 65 °C, 91 A at 70 °C.
This MCCB's interrupting capacity drops as system voltage rises: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at both 500 V and 690 V.
Integration notes
The 3-pole width (76.2 mm) is standard for a 100 A frame — fits the usual DIN-rail or mounting-plate footprint in a distribution panel.
