What the 160 A rating and 187 kA breaking capacity mean for your panel
That 160 A holds across the 40 °C to 50 °C band without derating — at 55 °C it still carries 154 A, and at 70 °C it delivers 136 A. The headline breaking capacity of 187 kA at 240 V AC drops to 121 kA at 415 V and 440 V, then to 79 kA at 500 V, and 5.1 kA at 690 V.
Front protection is IP40, suitable for enclosed distribution panels where incidental contact is the main risk. The ETU320 trip unit is field-adjustable for current and time curves, and the breaker includes a mechanical trip indicator for quick fault isolation during commissioning or troubleshooting.
