Breaking capacity across voltages
This MCCB's interrupting rating drops as system voltage rises: 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at both 500 V and 690 V. For a 400 V distribution board (common in European industrial panels), the 75.6 kA rating gives comfortable margin above the typical 25–50 kA prospective fault level.
Thermal derating and power loss
The breaker holds its full 32 A rating up to 50 °C, then derates to 31 A at 55–60 °C and 30 A at 65–70 °C. That's a shallow derating curve — only 2 A lost over a 30 °C rise — so it suits panels with modest internal temperature rise. Maximum power loss is 10.6 W, which matters for enclosure heat load calculations when grouping several breakers in a small cabinet.
The 70 mm depth means it clears most shallow enclosures without needing a gland plate extension.