The Siemens 3VA2110-5HN36-0AE0 is a SENTRON molded case circuit breaker (MCCB) rated for 100 A continuous current at 40 °C, carrying a 187 kA interrupting capacity at 240 V. It is a 3-pole unit designed for line protection — meaning it sits at the feeder or main distribution point, not at a motor or branch load. The 800 V rated insulation voltage confirms it can be used on 480 V and 600 V class systems without derating the insulation.
Interrupting capacity and what it means for your panel
The 187 kA at 240 V is the short-circuit current rating (SCCR) at the lowest system voltage — this is the fault current the breaker can safely interrupt without welding contacts or venting plasma. At 415 V the rating drops to 121 kA, and at 690 V it falls to 3.7 kA. That steep drop at 690 V is typical for a 100 A frame; if your panel feeds a 690 V line-up, verify the available fault current is under 3.7 kA or step to a higher-frame breaker. The 100 A rating holds flat from 40 °C through 70 °C (–), so no temperature derating is needed in a warm enclosure — that is unusual and simplifies panel layout.
Physical fit and integration
Dimensions are 86 mm deep, 105 mm wide, and 181 mm high (–). It mounts on a DIN rail or panel-mount plate inside a standard enclosure. The 105 mm width is the 3-pole frame; verify the backpanel cutout and busbar spacing match the existing footprint if replacing a different MCCB family. The auxiliary switch block is a separate order — the base breaker ships without a trip indicator or undervoltage release.