B&R 8MSA4S.R0‑31 Synchronous Servo Motor

Technical Specifications

Model:8MSA4S.R0‑31

Brand:B&R

Product Type:8MS series medium‑high‑torque three‑phase synchronous servo motor

Applicable System:Matching with ACOPOSmulti servo drive system,applied for machine tools,packaging machinery,automated assembly,heavy‑duty material handling multi‑axis motion‑control production lines

Mechanical Structure:Size4S flange,smooth shaft without keyway,no holding brake;angled swivel rotatable connector;natural self‑cooling;IP65 protection for shaft and connector side

Electrical Rating:Rated speed 3000 rpm;KTY84 winding temperature‑sensor for over‑temperature monitoring;realizes stable medium‑high‑torque continuous output under industrial working condition

Feedback:Built‑in R0 resolver position feedback,strong anti‑vibration and anti‑dust performance,suitable for harsh industrial workshop environment

Installation:Flange mounting mode;allow any installation orientation;torque derating required above 500 m altitude

Certification:CE,cULus,UKCA certification

Working temperature:‑10℃ ~ +40℃

Storage temperature:‑25℃ ~ +70℃

Relative humidity:5‑85% non‑condensing,pollution degree 2

Built‑in function:Medium‑high‑torque synchronous servo motor provides stable torque output for heavy‑load automation axes. Resolver feedback delivers reliable position signal to servo drive without sensitive optical components. KTY84 temperature sensor monitors winding real‑time temperature to prevent motor burnout. Angled swivel connector optimizes on‑site wiring layout. IP65 protection adapts industrial dust‑proof and splash‑proof requirements. No‑brake version fits axes without static holding demand

Product Brief

8MSA4S.R0‑31 belongs to B&R 8MS‑series servo motor family,size4S frame for medium‑high‑torque application scenarios

Resolver feedback owns outstanding anti‑interference capability,works reliably under strong vibration and dust environment. Smooth shaft structure suits direct coupling installation. Cooperates with ACOPOSmulti series inverter modules to realize high‑precision position,speed and torque control for automation equipment

This is legacy spare part,widely used for maintenance and hardware replacement of original B&R automation equipment. Before purchase,please confirm drive matching,motor torque‑speed requirement and mechanical shaft‑end dimension. ESD protection shall be followed during installation. Power cable and feedback cable sold separately