Rated 100 A continuous current (Iu) across a 40–50 °C ambient window, it holds that rating without derating until you push past 55 °C — at 70 °C it still carries 85 A, which is useful when the panel sits next to a hot motor or a bank of drives. Breaking capacity runs 242 kA at 240 V, 187 kA at 415/440 V, and still 121 kA at 500 V, so it handles high-fault scenarios on the secondary side of a transformer or a large motor branch. The 3-pole body fits a standard 105 mm wide DIN-rail footprint.
Trip unit and auxiliary hardware
An undervoltage release (UVR) is built in, so a loss of control voltage drops the breaker open. A mechanical trip indicator is present on the front face.
Physical fit and environmental limits
Maximum power dissipation is 12.5 W — manageable in a ventilated enclosure, but worth checking if you're packing multiple breakers in a sealed gland plate. Mechanical endurance is rated at 20,000 operations.