H-8350-S-J01AB Brushless AC Servo Motor

The H-8350-S-J01AB is a high‑torque, large‑frame brushless AC servo motor from the Allen‑Bradley (Rockwell Automation) 1398 ULTRA H‑Series, designed for heavy‑duty, high‑precision motion control in industrial machinery and automation systems. It features a high‑energy permanent magnet rotor, robust stator winding, and high‑resolution encoder, delivering exceptional torque output, speed stability, and long‑term reliability for demanding closed‑loop servo applications.

Manufacturer: Allen‑Bradley (Rockwell Automation)Part Number: H‑8350‑S‑J01ABSeries: 1398 ULTRA H‑SeriesType: Three‑phase brushless AC servo motorFrame Size: 8350 (NEMA 56C, large frame)Winding Type: S‑type (460 VAC)Rated Voltage: 460 VAC, 3‑phaseMaximum Speed: 4,000 RPMContinuous Stall Torque: 22.6 Nm (200 lb‑in)Peak Stall Torque: 45.2–67.8 Nm (400–600 lb‑in)Rotor Inertia: 0.0032 kg·m²Encoder: High‑resolution incremental encoder with index (Z) pulseEncoder Supply: 5 VDCEncoder Output: TTL/RS‑422 differentialInsulation Class: Class FProtection Rating: IP54Operating Temperature: 0°C to +40°C (ambient)Storage Temperature: −20°C to +70°CWeight: Approximately 18.1 kg (40 lbs)Shaft Diameter: 0.875 inch (22.225 mm), with keyMounting Flange: NEMA 56C standard flange, 4‑hole pattern

Rotor: High‑energy neodymium‑iron‑boron permanent magnet, optimized for high torque and moderate inertiaStator: Precision‑wound three‑phase stator with Class F insulation, low cogging, smooth torque output, and high thermal efficiencyBearings: Heavy‑duty double‑row ball bearings, lubricated for life, designed for high radial and axial loadsShaft Seal: Heavy‑duty integrated seal for enhanced dust and splash protectionHousing: Rigid cast‑aluminum alloy housing with large cooling fins, ensuring efficient heat dissipation during continuous high‑torque operationThermal Protection: Internal thermal switch for overheat detection and protection

High Torque Output: Large‑frame design delivers industry‑leading continuous and peak torque, ideal for heavy‑load applicationsPrecision Feedback: High‑resolution incremental encoder provides accurate speed, direction, and position data for precise closed‑loop controlRobust Industrial Design: IP54 protection rating, wide temperature range, and vibration‑resistant construction ensure reliable performance in harsh factory environmentsHigh Efficiency: Optimized magnetic design and low‑loss windings reduce energy consumption and thermal riseDrive Compatibility: Optimized for Allen‑Bradley ULTRA 2000 and Kinetix series servo drives, supporting seamless plug‑and‑play integration

Primary Applications: Heavy‑duty positioning, CNC machine tools, large‑format packaging machinery, material handling systems, industrial robotics, and metalworking equipmentIndustrial Sectors: Automotive manufacturing, heavy machinery, aerospace, plastics processing, and general automation requiring high‑torque, high‑accuracy motion controlSystem Integration: Compatible with Allen‑Bradley Kinetix, Ultra, and BRU series drives, as well as RSLogix‑based PLC systems for comprehensive automation solutions

Installation: Mount the motor to the machine frame using the NEMA 56C flange; align the shaft with the load using a heavy‑duty precision coupling to avoid misalignment and mechanical stressWiring: Connect power cables to the motor power connector and encoder cables to the feedback connector; follow the official Allen‑Bradley wiring diagram for pin assignments and ensure proper shielding to reduce electromagnetic interference (EMI)Maintenance: Periodically inspect coupling tightness, connector integrity, and cable condition. The motor bearings are lubricated for life and require no routine maintenance. Disconnect power before performing any maintenance to prevent electrical hazards.

Compliance: CE certified, meeting European EMC and safety standardsWarranty: Standard manufacturer warranty (new units); third‑party warranties available for surplus or refurbished unitsDurability: Designed for continuous heavy‑duty industrial operation, with a proven track record of reliability in demanding applications worldwide