This MCCB delivers 75.6 kA interrupting capacity at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 10.5 kA at 690 V. For a 415 V distribution board, the 52.5 kA figure gives solid headroom above the typical 25–36 kA SCCR of most panelboards — you can place it downstream of a transformer without worrying about cascading failure on a high-fault event.
Thermal derating and ambient limits
Above 55 °C it derates: 30.72 A at 55 °C, 30.08 A at 60 °C, 29.44 A at 65 °C, and 28.8 A at 70 °C. If your panel runs hot — near a drive or transformer — factor the derating into the continuous load.
The 76.2 mm width (3-inch pitch) matches standard MCCB mounting in most 600 V panelboards — it occupies three 25 mm pole spaces. No auxiliary contacts or communication module on this variant; the auxiliary trip is ordered separately (3VA9608-0BB11).