At 55 °C it carries 375 A, at 60 °C 350 A, at 65 °C 325 A, and at 70 °C 300 A — so if your panel runs hot, you size the breaker for the actual ambient, not the nameplate.
Breaking capacity and fault clearing
This 3-pole MCCB delivers 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 7.5 kA at 690 V. Those are the maximum interrupting ratings at each voltage level — enough to clear high-fault-current scenarios downstream of a large transformer without cascading upstream breakers.
Line protection design with communication
The supplied basic switch is order code 3VA2340-5JP32-0AA0.
That 110 mm depth is the panel depth you need behind the door — check your enclosure clearance before committing the cutout. The 138 mm width is the pole pitch for a 3-pole unit; it occupies the same footprint as other SENTRON 3VA2 3-pole breakers in this frame size.