What the interrupting ratings mean for coordination
The 5SJ4304-7HG41 carries a 14 kA interrupting rating per UL 489 at 240 V AC, a 10 kA rating per EN 60898, and a 15 kA rating per IEC 60947-2 — the applicable standard depends on the panel's listing jurisdiction and the upstream fault current available at the breaker.
AC and DC voltage capability
Rated 400 V AC and 60 V DC — the DC voltage ceiling limits this breaker to low-voltage DC control circuits, not 125 V DC battery banks or higher-voltage DC buswork.