The Siemens SENTRON 3VA2110-5JQ32-0AB0 is a 3-pole molded case circuit breaker (MCCB) on a 100 A frame, set for 20 A continuous current at 40 °C through 70 °C — flat thermal derating across the full operating range. Line protection design means it's configured for feeder and branch-circuit overcurrent, not motor or generator protection. Breaking capacity hits 187 kA at 240 V, 121 kA at 415 V and 440 V, then drops to 75.6 kA at 500 V and 3.7 kA at 690 V (–) — that 690 V figure tells you this frame is optimized for low-voltage distribution, not 690 V motor circuits where the fault current capability narrows sharply.
Panel footprint and integration
That 105 mm width on a 3-pole frame is tight for the breaking capacity it carries — expect standard DIN-rail or screw-mount panel integration. The unit includes 2 HP auxiliary switches factory-fitted; no undervoltage release fitted, no voltage trip. Communication function present — the basic switch variant is 3VA21105JQ320AA0, so the -0AB0 suffix adds the aux switch package and communication interface.