The adjustable thermal-magnetic trip unit covers 300 A to 1 500 A, which allows the breaker to be set to the motor full-load current rather than requiring a fixed-trip variant. Breaking capacity is 330 kA at 240 V AC, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 3.7 kA at 690 V — the steep drop at 690 V reflects the physical limits of the arc-extinction chamber at that voltage, so verify the available fault current at the point of installation.
The design is a starter-protection variant, meaning the internal trip characteristics are matched to motor-starting inrush rather than general cable protection. This matters when replacing a general-purpose MCCB in a motor circuit — the 3VA2110-7MS32-0DC0 will ride through the start transient without nuisance tripping.
For a BOM that requires a 3-pole MCCB with adjustable trip in the 300–1500 A range and an undervoltage release, this is a direct-fit line item.