8LSA45.DB022S300-3 Detailed Product Description
May 13, 2026

8LSA45.DB022S300-3 Detailed Product Description

Product Overview The 8LSA45.DB022S300-3 is a high-power density, self-cooling three-phase synchronous servo motor from B&R’s 8LS3 series (8LSA sub-series), designed for heavy-duty, high-precision industrial motion control. It features a digital EnDat 2.2 encoder, reinforced keyed shaft, straight connector, and delivers 2.2 kW nominal power with 9.5 Nm nominal torque for medium-to-heavy load applications requiring high torque, accurate positioning, and reliable performance in demanding environments.

Description

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8LSA45.DB022S300-3 Detailed Product Description
1. Product Overview

The 8LSA45.DB022S300-3 is a high-power density, self-cooling three-phase synchronous servo motor from B&R’s 8LS3 series (8LSA sub-series), designed for heavy-duty, high-precision industrial motion control. It features a digital EnDat 2.2 encoder, reinforced keyed shaft, straight connector, and delivers 2.2 kW nominal power with 9.5 Nm nominal torque for medium-to-heavy load applications requiring high torque, accurate positioning, and reliable performance in demanding environments.

2. Basic Information

  • Model: 8LSA45.DB022S300-3

  • Series: 8LS3 (8LSA sub-series)

  • Type: Three-phase synchronous servo motor, self-cooling (IC4A0A0)

  • Size: 45 (100 mm flange)

  • Encoder/Feedback: EnDat 2.2 inductive encoder (D0)

  • Shaft End: Reinforced keyed shaft (S300-3)

  • Connection: Straight circular connector

  • Cooling: Self-cooling (free convection, no external fan)

  • Mounting: Flange-mounted (100 mm square flange)

  • Certifications: CE, UKCA, cULus, EAC, KC

  • Insulation Class: F (155°C maximum winding temperature)

  • Protection Class: IP64 (flange/shaft); IP20 (connector end)

3. Electrical Specifications

3.1 Performance Parameters

  • Nominal Speed (nₙ): 2200 rpm

  • Maximum Speed (nₘₐₓ): 6000 rpm

  • Number of Pole Pairs: 5

  • Nominal Torque (Mₙ): 9.5 Nm

  • Stall Torque (M₀): 11 Nm

  • Maximum Torque (Mₘₐₓ): 38 Nm

  • Nominal Power (Pₙ): 2.2 kW

  • Nominal Current (Iₙ): 4.2 A (rms)

  • Stall Current (I₀): 4.8 A (rms)

  • Maximum Current (Iₘₐₓ): 18.5 A (rms)

  • Torque Constant (Kₜ): 2.26 Nm/A

  • Voltage Constant (Kₑ): 185 V/krpm

  • Phase Resistance (R): 1.2 Ω (per phase)

  • Phase Inductance (L): 3.8 mH (per phase)

  • Thermal Time Constant (tₜₕₑᵣₘ): 22 min

3.2 Feedback System

  • Type: EnDat 2.2 inductive encoder (brushless, contactless, digital)

  • Resolution: 23 bits (8,388,608 counts/rev) + 12 bits multi-turn

  • Communication: Serial digital interface (EnDat 2.2)

  • Supply Voltage: 5 VDC ±5%

  • Interface: Direct compatibility with B&R ACOPOS/ACOPOSmulti drives

  • Features: High noise immunity, high resolution, functional safety capability

3.3 Holding Brake (Not Fitted)

  • Brake Type: Spring-applied, electrically released (optional)

  • Voltage: 24 VDC ±10%

  • Power Consumption: 8 W

  • Holding Torque: 10 Nm

  • Note: This model (S300-3) has no holding brake

4. Mechanical Specifications

  • Flange Size: 100 mm × 100 mm (square flange, centering diameter 100 mm j6)

  • Shaft Diameter: 19 mm (reinforced keyed shaft, keyway 6 mm × 6 mm)

  • Shaft Length: 40 mm

  • Dimensions (W × H × L): 100 mm × 100 mm × 145 mm

  • Weight: Approx. 4.8 kg

  • Moment of Inertia (J): 2.1 kg·cm²

  • Bearing Type: Reinforced precision ball bearings (high radial/axial load capacity)

  • Shaft Runout: ≤0.02 mm

  • Vibration Grade: A (≤1.12 mm/s rms)

  • Noise Level: ≤65 dB(A) at 2200 rpm

  • Oil Seal: DIN 3760 Form A (standard, for shaft protection)

5. Environmental Conditions

5.1 Temperature

  • Operating: 0–40°C (rated); up to 55°C (with 15% torque derating)

  • Storage: −25–55°C

  • Transport: −25–70°C

5.2 Humidity

  • Operating: 5%–85% RH (non-condensing)

  • Storage: 5%–95% RH (non-condensing)

5.3 Mounting & Altitude

  • Orientation: Any (horizontal/vertical; no derating)

  • Rated Altitude: 0–1000 m

  • Max Altitude: 4000 m (with 10% torque derating above 1000 m)

6. Interface & Connection

  • Motor Connector: HTEC circular connector (size 2), straight type

  • Cable Compatibility: B&R hybrid power/feedback cables (e.g., 8CC006.12-1)

  • Wire Gauge: 1.0–2.5 mm² (power); 0.25–0.5 mm² (feedback)

  • Cable Length: Max 50 m (without signal amplification)

  • Connector Hood: Optional IP65 protection for connector end

7. Thermal Protection

  • Method: Winding temperature sensor (PTC 100 Ω) + drive-based monitoring

  • Threshold: 110°C (drive limits torque); 155°C (hardware shutdown)

  • Cooling Requirement: Natural convection (no external fan needed; ensure adequate airflow around the motor)

8. Key Features

  • High Torque Density: 9.5 Nm nominal torque, 38 Nm peak torque for heavy-load applications

  • High-Resolution Digital Feedback: EnDat 2.2 encoder (23 bits) for ultra-precision positioning

  • Reinforced Mechanical Design: 100 mm flange, reinforced bearings, and keyed shaft for high radial/axial loads

  • Robust & Durable: IP64 protection, brushless design, and long service life

  • High Efficiency: IE3 classification, low energy consumption, and reduced heat generation

  • Straight Connector: Simplifies cable routing in confined spaces

  • Easy Maintenance: Brushless design with minimal upkeep and long service intervals

9. Accessories

9.1 Mandatory

  • Power/Feedback Cable: 8CC006.12-1 (standard length)

  • Mounting Bolts: M6 × 12 mm (4 pcs)

9.2 Optional

  • Holding Brake Kit: 8LSA45.B000-3 (retrofit)

  • Smooth Shaft Kit: 8LSA45.K000-3 (retrofit)

  • Connector Hood: IP65 protection for connector end

  • Gearbox: B&R 8G series planetary gearboxes (ratio 3:1 to 50:1)

10. Typical Applications

  • CNC machine tools (milling, turning, grinding)

  • Heavy-duty automated assembly lines

  • Packaging machinery (filling, sealing, labeling)

  • Robotics (large articulated arms, SCARA robots)

  • Material handling systems (conveyors, pick-and-place)

  • Printing machinery (digital, offset, flexographic)

  • Textile machinery (spinning, weaving, knitting)

  • Medical and laboratory automation equipment


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