That is high enough to sit upstream of most downstream faults without cascading — the breaker clears a bolted fault before the upstream device has to move. Continuous current ratings are 10 A at both 480 V and 600 V. That sets the motor FLA it can protect — a 10 A continuous rating typically covers a 5 hp motor at 460/480 V or a 10 hp motor at 575/600 V. For lower voltages the horsepower table runs from 0.5 hp at 110/120 V up to 3 hp at 220/230 V.
Clearance requirements: 50 mm upwards, 50 mm downwards, 30 mm at the sides, zero forwards or backwards. That is tight — the breaker can sit flush against the back panel and against adjacent devices on the rail, saving enclosure width. No screw torque to verify; just strip and insert. The spring clamp holds well under vibration common on a motor starter panel.