The 160 A rating holds steady up to 50 °C ambient. Above that it steps down: 158 A at 55 °C, 155 A at 60 °C, 153 A at 65 °C, and 150 A at 70 °C. The breaker dissipates 40.5 W max at full load, so ventilation matters in a tight cabinet.
Auxiliary and undervoltage release configuration
That means if your control voltage drops below the release threshold, the breaker trips, which is standard for emergency-stop or safety circuits that need a predictable power-loss response. The basic switch module is order code 3VA11166EF320AA0 — useful if you ever need to swap the base unit and keep the aux block.
Mounting is via the standard SENTRON base plate or DIN rail adapter — no special bracket needed.