The interrupting capacity is the headline figure for this MCCB: 330 kA at 240 V AC, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 5.2 kA at 690 V. These are very high fault-current ratings — the 330 kA at 240 V covers most North American 240/120 V panelboard applications with ample headroom for high-fault locations near transformers. At 415 V the 242 kA rating suits European 400 V industrial networks where fault levels can exceed 100 kA. The sharp drop to 5.2 kA at 690 V means this breaker is not intended for 690 V motor circuits; for those, a higher-voltage-rated MCCB would be needed.
Physical integration and panel fit
Dimensions: 181 mm height, 105 mm width, 86 mm depth. Panel builders should verify the lug kit and terminal arrangement for their specific cable sizes.