It carries an 80 A rating at 40 °C ambient, holds that current through 50 °C, then derates to 78 A at 55 °C, 77 A at 60 °C, 75 A at 65 °C, and 74 A at 70 °C — so in a warm enclosure you lose about 6 A off the nameplate by the time you hit 70 °C. The 4-pole construction handles three-phase-plus-neutral or three-phase with a switched neutral, common for North American and European panel builds.
Interrupting rating is voltage-dependent: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at both 500 V and 690 V. For most 400 V-class distribution (415 V nominal), 52.5 kA gives plenty of headroom for a typical 25–36 kA SCCR panel.
Overcurrent release and auxiliary release
The overcurrent release is a TM210 — thermal-magnetic, fixed trip.
Dimensions: 130 mm height, 101.6 mm width, 70 mm depth. That 101.6 mm width is exactly 4 inches — standard MCCB footprint for a 4-pole frame in a panel.