40 A MCCB with high interrupting capacity for line protection
The interrupting ratings are the headline here: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V. That's enough fault-clearing capacity to serve as a main breaker in a high-fault panel without cascading upstream.
At 55 °C it drops to 38.4 A, at 60 °C to 37.6 A, at 65 °C to 36.8 A, and at 70 °C to 36 A. If your panel runs hot, size the load accordingly. The undervoltage release (UVR) is factory-fitted — part of the design, not an add-on.
The integrated undervoltage release (3VA9608-0BB11) is wired separately from the main power path; confirm polarity and control voltage before energizing.
