It also carries 100 kA SCCR at 240 V, 42 kA at 500 V, and 6 kA at 690 V, so it holds up across common industrial voltages without needing an upstream current-limiting fuse.
The 45 mm width (3 module spaces) and 97 mm depth fit standard distribution boards; clearance needs are 50 mm above and below, 30 mm to the side, zero forward or backward. That spring-cage saves panel build time vs screw clamps, but verify your ferrule length if using stranded.
The 8 A rating at 480 V and 600 V sets the continuous current limit for the motor branch — pair it with a contactor sized for the same FLA. The switching rate is capped at 15 operations per hour under AC-3 duty (motor starting), adequate for most pump and fan cycles but not for frequent jogging. No ground-fault or phase-failure detection built in — those functions need an external relay or a different SIRIUS variant.
Temperature range
The wide storage range matters for spares held in unheated warehouses or shipped in cold climates — the breaker can sit at -50 °C without damage, though it won't be rated to switch until it warms above -20 °C.