The Siemens SENTRON 3VA1110-3EF36-0CH0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying a continuous current Iu of 100 A. The TM240 thermal-magnetic overcurrent release handles the overload and short-circuit trip curve, while the integrated undervoltage release (UVR) provides a controlled dropout under voltage-loss conditions. Breaking capacity runs from 75.6 kA at 240 V down to 10.5 kA at 690 V, so the spec sheet on the system's available fault current determines which voltage tap governs the installation.
Thermal Derating and Panel Fit
The 100 A rating holds flat through 50 °C ambient; above that it derates to 96 A at 55 °C and 90 A at 70 °C. In a sealed enclosure with multiple breakers ganged, the 70 °C derated figure is the one to design to. Physical footprint is 76.2 mm wide by 130 mm tall by 70 mm deep — a 3-pole MCCB that fits standard DIN-rail or panel-mount cutouts for the SENTRON family.
Auxiliary Contacts and Trip Indication
Factory-fitted with 2 auxiliary switches plus 1 trip alarm switch (HQ version), plus a visible trip indicator on the front. The auxiliary release is an undervoltage release (UVR) — part number 3VA9608-0BB24 for the integrated trip unit. No communication module, no phase-failure detection, no ground-fault monitoring on this variant; it is a straight line-protection breaker with a UVR for emergency-stop or undervoltage chains.