What this 80 A MCCB delivers — and where it fits
Its interrupting capacity reaches 75.6 kA at 240 V, 52.5 kA at 415 V, and 32 kA at 440 V — figures that cover most low-voltage fault scenarios in commercial and light industrial mains. At 690 V the rating holds at 7.5 kA, so the same breaker can serve a 690 V motor feeder with adequate upstream fault limiting.
The breaker holds 80 A continuously up to 50 °C ambient. Above that it derates in steps: 78 A at 55 °C, 77 A at 60 °C, 75 A at 65 °C, and 74 A at 70 °C. For a tight 80 A continuous load, you would want to upsize the frame. Maximum power loss is 19.2 W per pole, which matters for enclosure heat-rise calculations when multiple breakers are ganged.
Built-in accessories and release options
No undervoltage release is fitted, and there is no ground-fault monitoring module — those would need a different suffix or an add-on accessory. The basic switch inside is 3VA10803ED420AA0, which is the core interrupter assembly; the order code suffix adds the trip unit and accessories.
Dimensions are 101.6 mm wide, 130 mm tall, and 70 mm deep — a standard 4-pole MCCB footprint that mounts on a DIN rail or directly to a backplate via the supplied screws.