8LSA54.EA045D200-1 B & R Automation
Wake Industrial LLC is not an authorized distributor of this product.
The B & R Automation 8LSA54.EA045D200-1 is a three-phase synchronous motor that belongs to the 8LS Synchronous Motors series. It features an inductive EnDat 2.1 encoder with single-turn capability and a 19-bit resolution. The motor includes a standard holding brake, a 142 mm flange, and operates at a rated speed of 4500 rpm with a smooth shaft end and self-cooling design.
Internal Product Review
The 8LSA54.EA045D200-1 is a three-phase synchronous motor from B & R Automation that stands out for precise motion performance. Self-cooling free circulation and an inductive EnDat 2.1 encoder support efficient thermal operation and accurate feedback in demanding servo systems. A standard holding brake and 4500 rpm rated speed make the unit an excellent choice for fast, controlled axis applications.
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Product Description:
The 8LSA54.EA045D200-1 is a three-phase synchronous motor produced by B&R Automation for the 8LS Synchronous Motors series. Within an automated machine, the unit converts electrical energy into rotational motion that can be precisely controlled by a servo drive, making it suitable for positioning axes or continuous-duty spindles. The A-grade 8LSA configuration indicates a standard build without reinforced bearings, making the motor appropriate for typical industrial loads rather than applications that impose high radial stress. Its synchronous operation allows commanded motion to remain coordinated with the electrical frequency supplied by the drive.
The motor has a rated speed of 4500 rpm, supporting high-speed motion in applications that require rapid positioning or continuous rotation. Its three-phase synchronous design keeps rotor motion synchronized with the stator frequency, enabling accurate velocity regulation throughout the operating range. The motor uses self-cooling with free circulation, so heat dissipates through the housing without an external fan or liquid cooling circuit. Adequate space around the housing allows air to circulate freely and carry heat away from the motor surfaces. A standard holding brake keeps the shaft stationary when power is removed, helping prevent drift on vertical axes. Mechanical attachment uses a 142 mm flange that mates with the corresponding machine mounting surface and supports accurate frame alignment.
Position feedback is provided by an inductive EnDat sensor that operates with protocol version 2.1. The encoder provides 19 single-turn bits and no multi-turn bits, resulting in an overall resolution of 19/0 for accurate commutation and angular position monitoring. Because the encoder records position within one mechanical revolution, machine-level position across multiple revolutions must be re-established after a loss of power. Power and feedback connectors exit through an angled swivel interface, allowing the connector orientation to be adjusted for the available cable-routing space. A keyed connector plug is supplied to support a secure connection and prevent incorrect orientation during installation. The smooth shaft end accommodates clamp-style couplings without requiring a keyway. The shaft has no oil seal, so the coupling area should remain protected from oil and other contaminants. Length code 4 provides a moderate motor stack depth for installations with limited axial space.
