The Siemens SENTRON 3VA2110-6HN36-0HH0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current at 40 °C, with a line protection release (ETU350) and a shunt trip (STL) auxiliary release. Its interrupting capacity reaches 242 kA at 240 V AC, stepping down to 187 kA at 415 V and 440 V, 121 kA at 500 V, and 5 kA at 690 V — the 242 kA figure is the headline number for sizing against high available fault current at the service entrance or large transformer secondary.
The breaker holds 100 A continuously from 40 °C through 50 °C ambient, then derates linearly to 85 A at 70 °C (the maximum operating ambient). That means in a hot panel — say a poorly ventilated enclosure near a furnace line or in a Middle East outdoor cabinet — the 100 A frame still delivers 92.5 A at 60 °C and 88.75 A at 65 °C, which is better than many frames that start derating at 40 °C.
Auxiliary contacts and trip signaling
The integrated auxiliary trip module is order code 3VA9688-0BL30; the supplied basic switch is 3VA2110-6HN36-0AA0. No undervoltage release, no ground fault monitoring, no communication function or phase failure detection — this is a straightforward line-protection MCCB with remote trip capability and status feedback for a PLC or SCADA system.
The 105 mm width (about 4.1 inches) matches the 3VA2 frame footprint; if you are replacing a 3VA1 or older 3VL frame, verify the mounting hole pattern and busbar spacing before committing the panel layout.