Allen-Bradley MPL-B420P-MJ72AA Brushless Servo Motor

Allen-Bradley MPL-B420P-MJ72AA is a 460 V AC brushless servo motor from the MP-Series MPL low-inertia family. With a frame size of 4 (115 mm) and a stack length of 20 (50.8 mm), this motor delivers up to 5000 RPM and uses a multi-turn high-resolution absolute encoder for precise position feedback. Designed for high-performance servo systems, the MPL-B420P-MJ72AA provides robust torque in compact form, making it well-suited for fast closed-loop control in machine applications requiring compact footprint and tight positioning. Typical system compatibility includes Rockwell Automation servo drives such as Kinetix 2000, 6000, 7000 families and Ultra 3000, and it is commonly paired with 460 V AC power supplies in standard industrial automation setups. This motor’s low inertia helps achieve rapid acceleration and short cycle times, while the absolute encoder enables reliable positioning across power cycles. Applications include high-speed pick-and-place, packaging, robotics, CNC-related tasks, and other precision motion tasks that demand repeatable, high-precision motion with robust servo performance.