ASD-B3A-1021-L-AC SERVO DRIVE 1KW 220S B3A 4.The ASD-B3A-1021-L-AC SERVO DRIVE 1KW 220S B3A 4is a small and powerful servo drive designed for precision industrial motion control. With 1kW of power and 220V compatibility, it provides smooth operations and safety features for dependable automation.