At 415 V and 440 V it still holds 187 kA, and at 500 V it manages 121 kA, so it covers most industrial voltage levels without needing a current-limiting fuse upstream. At 690 V the breaking capacity drops to 3 kA — that's the voltage limit for this frame; if your circuit runs 690 V with significant fault potential, you need a different breaker.
Thermal performance and derating
Maximum power loss is 5.4 W, so heat dissipation inside the enclosure is manageable even in a dense panel.
