It carries a continuous current Iu of 16 A at 40 °C and holds that rating up through 50 °C without derating; at 55 °C it derates to 15.36 A, and at 70 °C to 14.4 A — the full thermal curve is published per the datasheet, so you can size it for elevated panel ambient without guesswork. That keeps the part simple and repeatable for standard feeder or branch protection where you don't need the selectivity tuning of an electronic trip unit. Breaking capacity is specified per voltage: 75.6 kA at 240 V AC, 52.5 kA at 415 V AC, 32 kA at 440 V AC, and 10.5 kA at 690 V AC. Those are the symmetrical RMS values the device can interrupt without damage — useful for verifying SCCR compliance in a panel that sees high available fault current at the lower distribution voltages.
Panel fit and auxiliary contacts
Footprint is 76.2 mm wide, 130 mm tall, 70 mm deep — standard 3-pole MCCB envelope for a 16 A frame. That gives you both a status mirror and a separate alarm contact that closes only on a trip event — no need to add a separate auxiliary block for basic remote indication.