The 3-pole design and line-protection version make it a straight fit for feeder or branch circuits in switchboards.
Breaking capacity across voltages — selectivity headroom
This MCCB delivers 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V. The 121 kA at 240 V gives substantial headroom for North American panels with high transformer fault contributions. The TM240 release is fixed, not adjustable — set it and forget it for straightforward thermal-magnetic coordination.
Temperature derating — real-world continuous current
Above that, derate linearly: 15.36 A at 55 °C, 15.04 A at 60 °C, 14.72 A at 65 °C, and 14.4 A at 70 °C.