The B&R 8LSA55.R2030D300-3 is a 400 VAC synchronous servo motor for machine axes that require substantial continuous torque together with a mechanical holding function.
This 3000 rpm version delivers 11.600 Nm nominal torque and uses a 15.00 Nm holding brake. It is appropriate for servo applications where the axis must remain secured after drive power is removed, including vertical lifting mechanisms, high-inertia rotary tables, indexing stations, and loaded handling axes.
The motor is equipped with an R2 two-pole resolver for robust speed and position feedback. Its keyed 24 mm shaft supports torque transmission in applications where a smooth-shaft motor would not provide the required mechanical connection.
The 8LSA55.R2030D300-3 is a servo motor only. It should not be described as a servo drive, power supply, motion controller, bus module, or general-purpose AC motor.
Key Features
400 VAC synchronous servo motor
3000 rpm nominal speed
11.600 Nm nominal torque
12.500 Nm stall torque
15.00 Nm holding brake
R2 two-pole resolver feedback
Self-cooled motor construction
Keyed 24 mm shaft
130 mm centering diameter
142 mm square flange
High-efficiency servo motor design
Typical Applications
Vertical lifting axes
Heavy-duty indexing tables
Rotary positioning stations
Servo-driven feeders
Packaging machinery
Assembly equipment
Handling and transfer systems
Industrial retrofit projects
Installation Notes
Confirm the original motor model, resolver type, brake requirement, shaft-key dimensions, flange size, and centering diameter before replacement.
The 15 Nm holding brake is designed to hold a stationary axis. It should not be used as the primary method for repeated dynamic stopping.
Use a compatible B&R servo drive and matching motor feedback cable. Verify the motor data and brake wiring before commissioning.
FAQ
Q
Is 8LSA55.R2030D300-3 a servo motor
A
Yes it is a 400 VAC synchronous servo motor
Q
Does this motor include a holding brake
A
Yes it includes a 15.00 Nm holding brake
Q
What is the nominal torque
A
The nominal torque is 11.600 Nm
Q
What feedback system does it use
A
It uses an R2 two-pole resolver
Q
Is the shaft smooth or keyed
A
It has a keyed 24 mm shaft
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