8LSA65.EB045D200-3 B & R Automation
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The B & R Automation 8LSA65.EB045D200-3 is a three-phase synchronous motor from the 8LS Synchronous Motors series. It features a flange dimension of 190 mm, a smooth shaft end, and reaches a rated speed of 4500 rpm. This motor uses an inductive EnDat 2.1 encoder with multi-turn capability, supports standard holding brake, and utilizes a self-cooling, free circulation design.
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Product Description:
The 8LSA65.EB045D200-3 is a three-phase synchronous motor manufactured by B & R Automation for the 8LS Synchronous Motors series. As a servo actuator, it converts drive currents into precise torque for positioning axes, feed drives, and handling modules in industrial automation lines that require fast speed changes and a compact footprint. A 190 mm mounting flange connects directly to compatible gearboxes or machine frames without requiring additional mounting brackets.
This model reaches a rated speed of 4500 rpm, providing a wide operating range before field weakening is required. Feedback is delivered by an inductive EnDat sensor that supports EnDat version 2.1. It provides 19/12 bits of single-turn and multi-turn resolution, respectively, allowing accurate electronic commutation and absolute position recovery after power loss. Cabling exits through an angled swivel connector, allowing the motor leads to be directed toward the control cabinet without increasing installation depth. The length code 5 lamination stack provides the active iron volume needed for medium-inertia applications. Power is routed through a sealed connector housing that helps protect the electrical connections from contaminants encountered during normal industrial operation.
Thermal control relies on self-cooling with free air circulation, avoiding external fans while dissipating losses generated during continuous operation. Motion is held during power-off by a standard holding brake, which helps prevent unintended movement when drive power is unavailable. An internal sensor confirms the brake status for controller interlock functions. The absence of an oil seal reduces shaft friction and supports longer maintenance intervals when the motor operates in a clean environment. The configuration uses a standard bearing set without reinforcement, providing support for loads that remain within the motor’s normal operating range. A smooth shaft minimizes runout when used with a precision clamping coupling. Product revision 3 uses a connector pinout compatible with the corresponding B & R drive controllers.
