Description

Allen‑Bradley MPL‑B320P‑MK74AA Low‑Inertia Brushless Servo Motor

Technical Specifications

• Product Model: MPL‑B320P‑MK74AA
• Brand: Allen‑Bradley (Rockwell Automation)
• Warranty: One Year
• Input Voltage: 460‑480 VAC three‑phase
• Operating Temperature: 0 °C ~ +40 °C continuous operation
• Storage Temperature: ‑20 °C ~ +70 °C
• Response Time: Fast dynamic response for high‑speed positioning
• Protection Class: IP65 housing (shaft and connector seals included)
• Accuracy Class: Multi‑turn absolute encoder, 20‑bit position resolution
• Output Frequency: Max mechanical speed 5000 RPM
• Rated Current: 4.6 A RMS continuous; peak 13.7 A RMS
• Frame Size: IEC 100 mm square frame; magnet stack length 50.8 mm (2.0 in)
• Torque: Continuous torque 3.2 Nm; peak torque 9.5 Nm
• Feedback: Multi‑turn high‑resolution absolute encoder
• Shaft: Keyless shaft extension
• Brake: Integrated 24 VDC holding brake
• Connector: SpeedTEC DIN right‑angle quick‑connect, 180° rotatable
• Insulation Class: Class F (155 °C)
• Mounting: IEC metric FF‑type free mounting holes
• Rotor Inertia: 0.67 × 10⁻³ kg·m²
• Dimensions / Weight: 182 mm × 100 mm × 100 mm; approx 4.2 kg
• 

Product Overview

The MPL‑B320P‑MK74AA is a low‑inertia permanent‑magnet brushless servo motor from Rockwell Automation MPL Kinetix motion‑control series, designed for 460‑480 VAC high‑performance motion applicationsRockwell A…. The built‑in multi‑turn absolute encoder eliminates homing requirement on power‑up, improving machine startup efficiency. The integrated 24 VDC holding brake maintains shaft position during power loss for safety‑critical vertical‑axis mechanisms. IP65 rated housing resists dust and splash contamination, suitable for packaging, material‑handling, machine‑tool and automated‑assembly factory‑floor environments. It is compatible with Kinetix 6000, Kinetix 7000 and matching Rockwell servo drives, delivering fast acceleration‑deceleration and consistent dynamic positioning performance.