That makes it a straightforward, no-auxiliary-release breaker for standard overcurrent and short-circuit protection where you don't need remote monitoring or selective coordination beyond what the magnetic pickup gives you.
The interrupting ratings track the available fault current at different system voltages: 121 kA at 240 V, 75.6 kA at 415 V, 25 kA at 440 V, and 11.9 kA at 690 V. At 415 V — common in European industrial distribution — the 75.6 kA figure covers most transformer-fed busways up to about 2 MVA.
Thermal derating — the real continuous current in a warm panel
Above 50 °C it derates: 155.6 A at 55 °C, 151.2 A at 60 °C, 146.8 A at 65 °C, and 142.4 A at 70 °C. If your panel internal ambient runs at 60 °C — common in a sealed enclosure with multiple breakers — you lose about 5.5 % of the rating.
Physical fit and auxiliary contacts
Dimensions are 105 mm wide by 158 mm high by 70 mm deep. The 70 mm depth is relatively shallow for a 160 A frame — it fits where a deeper breaker would crowd the gland plate or door clearance. The breaker ships with three HQ auxiliary switches, which give you status feedback for the main contacts.