Its interrupting capacity hits 121 kA at 240 V AC, 75.6 kA at 415/440 V, and 52.5 kA at 500 V — enough to handle high-fault utility feeds without cascading upstream.
Sizing and selectivity
Adjustable thermal-magnetic trip (16 A minimum setting) lets you fine-tune overload protection without swapping the breaker.
Dimensions are 105 mm wide, 181 mm tall, 86 mm deep — standard MCCB footprint for a 3-pole 40 A frame, fits most panelboards and switchgear cutouts. Power loss is a low 2.2 W at rated load.