Mitsubishi MR-J4-DU55KB4 MELSERVO MR-J4 Servo Drive Amplifier

The Mitsubishi MR-J4-DU55KB4 is an AC motion servo drive amplifier engineered for high-performance automation within the MELSERVO MR-J4 product line. Designed to deliver precision motion control, this servo drive features an integrated dynamic brake and a built-in braking resistor alongside dedicated compatibility with external safety units. It is rated for a nominal power output of 400 W (0.4 kW) and a rated current of 2.8 A, offering robust power delivery for demanding machine axes. The MR-J4-DU55KB4 supports a versatile supply voltage of 200 to 240 VAC (200 V class, 220/230 VAC) or 283 to 340 VDC, accepting single-phase (2P), three-phase (3P), or direct DC input. Engineered with CC-Link communication capability, it seamlessly integrates into networked automation architectures. The unit features an IP20 degree of protection and is rated to operate reliably across ambient temperatures from 0 to +55 degrees Celsius. Compatible with MELSERVO J4 motion architectures and functionally equivalent to MRJ440GFRJ configurations, this servo drive ensures dependable, accurate motion regulation across industrial automation and machine maintenance applications.