8LSA46.R2045D200-3 B & R Automation
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The B & R Automation 8LSA46.R2045D200-3 is a three-phase synchronous motor from the 8LS Synchronous Motors series. It features a standard holding brake, a 100 mm flange dimension, and operates with self-cooling and free air circulation. The motor uses resolver encoder technology, has a smooth shaft end, and reaches a rated speed of 4500 rpm.
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Product Description:
The 8LSA46.R2045D200-3 is a three-phase synchronous servo motor manufactured by B & R Automation as a member of the 8LS Synchronous Motors series. Supplied in the standard 8LSA configuration without reinforced bearings, it provides controlled rotary motion for positioning tables, pick-and-place arms, and other automated axes in industrial equipment. Integration with compatible drives enables precise electronic commutation and tight velocity control for general-purpose assembly and material-handling lines. Its compact design allows the motor to fit into machinery where available installation space is limited.
Mechanical mounting uses a flange width of 100 mm, while length code 6 indicates a stack depth suited to mid-range torque demands. A stator-mounted resolver supplies continuous analog feedback, allowing the controller to determine the rotor position when the system is powered. The motor reaches a rated speed of 4500 rpm, enabling direct coupling to fast-cycle machinery without requiring gear reduction. Heat is removed through self-cooling with free air circulation, so continuous operation does not require an external fan or liquid-cooling circuit. A standard holding brake secures the load when the drive disables motor torque. A single plug-in connector carries power, brake, and feedback signals, reducing the number of separate cable connections required at the motor.
The motor provides a positioning precision of 6 arcminutes, helping minimize indexing error in coordinated multi-axis systems. Cables exit through an angled, swiveling interface, allowing the harness direction to be adjusted in confined installation areas. The smooth shaft connects to clamp or compression couplings without requiring a keyed connection. The shaft does not include an oil seal because the motor is intended for dry indoor mounting conditions. The 8LSA designation indicates the standard configuration, and product revision 3 identifies the revision level of this model.