8LSA46.DB030S300-3
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The 8LSA46.DB030S300-3 synchronous motor features a nominal voltage of 325 V DC and a rated speed of 3000 rpm. Manufactured by B & R Automation as part of their 8LS Synchronous Motors series, it offers a rated power of 0.54 kW and a square B5 style mounting flange. The motor has IP65 protection and standard non-cooled operation.
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Product Description:
The B and R Automation’s designed and manufactured 8LSA46.DB030S300-3 is a synchronous motor used to achieve precise motion with good electrical efficiency. This motor offers a nominal torque of 7.7 Nm for constant power delivery in the rated load condition.
This motor also delivers a holding torque of 8 Nm to hold position without rotation, which is essential for indexing or stop-hold applications in automation systems. This motor’s nominal speed of 3000 rpm supports rapid, reliable rotational output for high-cycle applications. Physically, the 8LSA46.DB030S300-3 motor weighs 7.3 kg without brake and can be installed in space-limited mechanical systems without compromising build. Its IP64 protection rating ensures immunity against dust ingress and water splashing protection, suitable for industrial applications with moderate levels of contaminants. This motor has a nominal current of 4.7 A, which is the current required in continuous operation to produce constant output at rated torque. The thermal parameters of this synchronous motor are well specified, with a thermal time constant of 40 minutes, which determines its internal temperature-rise rate during full loading.
Some of the electrical design attributes of this motor are a stator resistance of 1.92 0, which affects heat dissipation and the voltage distribution in the windings. The 17.4375 mH inductance of this synchronous motor’s stator governs the current flow variations and influences maintaining steady electromagnetic performance as the load or speed changes dynamically. The electrical time constant of 9.1 ms ensures that the 8LSA46.DB030S300-3 reacts to control commands on time, which is necessary in applications with precision. With transient load spikes, this motor has a peak current of 36.5 A maximum. It can also withstand a stall current of 6.1 A without movement, which is required to determine startup performance and inrush current requirements.
Frequently Asked Questions about 8LSA46.DB030S300-3:
Q: How does the 9.1 ms electrical time constant benefit motor control?
A: It allows for faster current rise and improved real-time responsiveness during command input changes. This is crucial for dynamic automation sequences.
Q: Why is a stator inductance of 17.4375 mH important in this motor?
A: It helps smooth current transitions and reduces electromagnetic noise. This improves torque stability and minimizes signal interference.
Q: What does the IP64 rating mean for the 8LSA46.DB030S300-3 motor?
A: It ensures complete dust protection and resists splashing water. This makes the motor reliable in semi-exposed or dusty environments.
Q: How does the 1.92 Ω stator resistance affect thermal performance?
A: Higher resistance aids in controlling internal heat rise. It contributes to energy efficiency and protects winding insulation.
Q: Why is the 40-minute thermal time constant valuable in continuous operations?
A: It allows for gradual heat buildup, reducing sudden thermal spikes. This ensures operational stability over long duty cycles.
