This MCCB delivers 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3.7 kA at 690 V. For a site electrical engineer building a selective coordination study, the 187 kA at 415 V gives headroom for most industrial main breakers; downstream breakers can be sized with confidence that this upstream device clears fast enough to avoid cascading.
Thermal rating and derating
That's unusual for an MCCB; most lose 10–20 % by 60 °C. For a panel builder integrating this into a high-ambient enclosure (pump skid, compressor room, solar combiner), the 160 A nameplate is the real number at operating temperature. Maximum power loss is 25.5 W, which matters for enclosure heat-load calculations.
