Breaking capacity — what it means at your voltage
The interrupting rating varies with system voltage: 187 kA at 240 V, 121 kA at both 415 V and 440 V, 75.6 kA at 500 V, and 4.5 kA at 690 V. At 415 V — common in industrial distribution — 121 kA is well above typical available fault currents for most plant switchboards, so you have headroom for selectivity coordination without needing a current-limiting breaker upstream.
Thermal performance and power loss
Maximum power loss is 19.7 W, which is moderate for a 160 A frame; plan for that heat in a sealed enclosure if you're stacking multiple breakers.
The 3-pole body fits distribution panelboards and motor control center buckets sized for 160 A frames. No special cutout beyond the standard 3-pole MCCB opening.