The interrupting ratings span the common industrial voltage bands: 220 kA at 240 V, 154 kA at 415 V, 75.6 kA at 440 V, and 17 kA at both 500 V and 690 V.
At 40 °C ambient the breaker carries its full 160 A frame rating; the derating curve holds flat through 50 °C, then drops to 158 A at 55 °C, 155 A at 60 °C, 153 A at 65 °C, and 150 A at 70 °C. The 80 A continuous rating of this specific variant is well within the frame's thermal headroom, so in a 40 °C panel the breaker runs cool — the limiting factor will be the connected cable ampacity, not the device.
When paired with downstream 3VA or 3VL breakers, the TM220's time-current curve — particularly the thermal region — can be set to ride through motor inrush and downstream short-time delays, provided the manufacturer's selectivity tables are followed.