The Siemens 3VA2110-5MN32-0JC0 is a SENTRON molded case circuit breaker (MCCB) designed specifically for motor protection, with a 3-pole configuration and a full-load current rating of 100 A that holds steady across the entire 40 °C to 70 °C ambient range — no derating needed in a warm panel.
Interrupting capacity and selectivity
At 240 V this breaker clears 187 kA of fault current, dropping to 121 kA at 415 V and 440 V, then 75.6 kA at 500 V, and 3.7 kA at 690 V. That 187 kA figure at 240 V gives you headroom for high-fault panels without cascading upstream — the SCCR rating is the one that governs coordination studies. Phase failure detection is built in, so the breaker trips on a lost phase — critical for motor loads that would otherwise single-phase and burn out.
Auxiliary and release options
This variant ships with a shunt trip (STL) auxiliary release and two HQ auxiliary switches, giving remote trip capability and status feedback without adding external relays. No undervoltage release or ground-fault monitoring on this version — those are separate order-code branches.
Panel integration
Dimensions are 181 mm high, 105 mm wide, 86 mm deep — fits standard MCCB panel cutouts. The 3VA2 frame is a common Siemens SENTRON footprint; if you're swapping into an existing panel that was specified around a 3VA2116 frame, check the lug spacing and bus connection points — the frame height and width are the same, but the 100 A versus 160 A rating changes the line-side lug kit.