Its interrupting capacity hits 330 kA at 240 V and still holds 242 kA at 415 V or 440 V — that's the kind of fault-clearing muscle you need for high-available-current transformer secondaries or large motor control centers where a weak breaker would cascade upstream.
That simplifies panel layout: you don't have to oversize the frame or add forced ventilation just because the breaker sits next to other heat sources. The maximum power loss is 19.7 W, so heat dissipation is manageable even in a sealed enclosure.