That 250 A holds flat from 40 °C up to 50 °C — no derating needed in a warm enclosure — then steps down to 238 A at 55 °C, 225 A at 60 °C, 213 A at 65 °C, and 200 A at 70 °C. Breaking capacity is voltage-dependent: 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 6 kA at 690 V. On a 480 V distribution bus that 187 kA figure gives substantial SCCR headroom for coordination studies — it interrupts fault currents without cascading upstream. Communication function is present on this variant, which means it can report status and accept remote commands over the plant network, though the specific protocol is not detailed in this listing. This is a 3-pole device with no auxiliary contact version fitted and no ground-fault monitoring.
Physical fit — dimensions and panel integration
The 105 mm width for a 3-pole 250 A frame is consistent with SENTRON 3VA2 family panel cutouts — verify the existing busbar spacing if retrofitting into an older panel.
Electrical and environmental limits
Mechanical endurance is 20,000 operations.