Three poles, rated 80 A continuous at 40 °C with no derating until you push past 55 °C, where it drops to 78 A and then 74 A at 70 °C. That thermal curve matters if this lives in a hot panel next to drives or transformers. Breaking capacity is the headline: 220 kA at 240 V, 154 kA at 415 V, 121 kA at 440 V. Those numbers drop sharply above 500 V — 7.5 kA at both 500 V and 690 V — so if your line runs 690 V, this is not the high-fault unit you want.
Footprint: 76.2 mm wide (3 in), 130 mm tall (5.12 in), 70 mm deep (2.76 in). Comes with an undervoltage release (UVR) built in and two HQ auxiliary switches. The UVR means the breaker trips if control voltage drops — common for emergency-stop chains or safety circuits where loss of power must open the motor circuit.