MCCB for high-fault panels
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.
Thermal derating and ambient limits
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. The operating range is -25 °C to 70 °C; storage extends from -40 °C to 80 °C.
Auxiliary contacts and trip signaling
This variant ships with 2 auxiliary switches plus 1 trip alarm switch (HQ configuration), and a shunt trip (STL) for remote tripping via a control voltage. 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.
Physical footprint and panel fit
Dimensions are 105 mm wide × 181 mm high × 86 mm deep. The 86 mm depth is the key number for enclosure selection — it fits standard 200 mm deep enclosures with room for wiring gutters. 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.