The 80 A rating holds flat from 40 °C up to 50 °C, then derates to 76.8 A at 55 °C and 72 A at 70 °C, which matters if this lands in a hot enclosure next to transformers or drives.
Breaking capacity by voltage — where it fits
Short-circuit breaking capacity varies with system voltage: 52.5 kA at 240 V, 32 kA at 415 V, 13.6 kA at 440 V, and 7.5 kA at 690 V. At 415 V, that 32 kA covers most industrial distribution boards downstream of a transformer; at 690 V the 7.5 kA rating limits it to lower-fault-current applications like motor control centers with upstream current-limiting fuses.
Panel fit and auxiliary hardware
Dimensions are 76.2 mm wide, 130 mm tall, 70 mm deep — standard 3-pole MCCB footprint for a 70 mm deep enclosure or panel. It ships with two HQ auxiliary switches (form C) and an undervoltage release (UVR) built in; the integrated auxiliary trip uses order code 3VA9608-0BB25 if you need a replacement. No communication function, no phase-failure detection — this is a basic thermal-magnetic breaker, not a smart unit.