MCCB for starter protection
It is designated for starter protection — meaning it is sized to sit ahead of a motor contactor and protect the branch circuit against short circuits, not to provide overload protection for the motor itself (that is the overload relay's job). The interrupting capacity is 220 kA at 240 V, 154 kA at 415 V, and 121 kA at 440 V, which drops to 7.5 kA at 500 V and 690 V. That high short-circuit rating at low voltage tells you this breaker is designed for high-fault locations — typically a main or subfeed in a panel with a large transformer upstream.
The 2 A rating is fixed — not adjustable. The TM110M release has a fixed magnetic trip at 32 A (li min and li max both 32 A), so it will hold through motor inrush up to that level before instantaneously tripping. Power loss is 1.5 W maximum, negligible for panel thermal budgeting. The breaker is 3-pole and does not support a neutral pole upgrade.
Dimensions: 130 mm high, 76.2 mm wide (3 inches), 70 mm deep. The breaker accepts an optional motor drive (remote operator) for automated disconnection.