Part Number:

8MSA4M.E1-31

Manufacturer: B & R Automation
Series: 8MS Three Phase Synchronous Motor Series
  • Rated 4.6 (18 total ratings)
  • Straightforward Pricing: No Rush Fees, No Credit Card Fees
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The 8MSA4M.E1-31 from B & R Automation delivers a rated torque of 5.5 Nm and operates at a rated speed of 3000 rpm. As part of the 8MS Series, this motor has an efficiency of 90% and weighs 12.5 kg. The motor provides optional brake features, a peak current of 24 A, and utilizes a resolver as a feedback device.

Part Number:

8MSA4M.E1-31

Manufacturer: B & R Automation
Series: 8MS Three Phase Synchronous Motor Series
  • Rated 4.6 (18 total ratings)
  • Straightforward Pricing: No Rush Fees, No Credit Card Fees
    In-Stock, Ships Fast
  • Call for Expedited Shipping and Product Condition Options
Free Ground Shipping
Worldwide Delivery
Repair Options Available

The 8MSA4M.E1-31 from B & R Automation delivers a rated torque of 5.5 Nm and operates at a rated speed of 3000 rpm. As part of the 8MS Series, this motor has an efficiency of 90% and weighs 12.5 kg. The motor provides optional brake features, a peak current of 24 A, and utilizes a resolver as a feedback device.

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Product Description

The 8MSA4M.E1-31 is a modern AC servo motor manufactured by B & R Automation and is an industrially acclaimed model known for its dependability and accuracy. This component has been designed to fulfill the stringent criteria that are imposed by sophisticated automation systems. Because of its sturdy construction, it is capable of performing a wide variety of industrial duties with the highest possible efficiency and durability.

This synchronous motor is the epitome of power and performance with a peak torque of 16.5 Nm and a rated torque of 5.5 Nm. It can be quickly and precisely controlled for a variety of tasks due to its 3000 rpm rated speed. The device is exceptional in its ability to save energy with a power output of 2.1 kW and an astounding efficiency of 90%. With its 400 V and 8.0 A operating voltage and current, the 8MS series module guarantees dependable performance even in the most taxing environments. Not only that but it can easily manage steady loads due to its continual stall torque of 5.5 Nm.

The thermal time constant of a servo module is 1555 seconds guarantees consistent performance even during long operations and its rotor inertia of 0.15 kgm^2 helps it run smoothly. Through the use of a resolver feedback device, the motor can provide accurate control over both position and speed. In addition, it comes with a braking function that may be selected as an option that improves both safety and control. This 12.5 kg motor is an adaptable option for industrial automation due to its modular design and ease of integration into different systems.

8MSA4M.E1-31 Technical Specifications

Rated Torque: 5.5 Nm
Rotor Inertia: 0.15 kgm^2
Weight: 12.5 kg
Thermal Time Constant: 1555 s
Feedback Device: Resolver
Brake Option: Optional
Rated Speed: 3000 rpm
Peak Torque: 16.5 Nm
Voltage: 400 V
Current: 8.0 A
Power: 2.1 kW
Efficiency: 90%
Continuous Stall Torque: 5.5 Nm
Peak Current: 24 A

Frequently Asked Questions about 8MSA4M.E1-31


Q: What are the benefits of the resolver feedback device in the 8MSA4M.E1-31 module?

A: In different applications, the resolver feedback device improves motor control accuracy and reliability by monitoring position and speed.

Q: What impact does the optional braking function have on the performance of the 8MSA4M.E1-31?

A: The optional brake function provides swift stopping and motor security for important mechanical tasks.

Q: Why the thermal time constant of the 8MSA4M.E1-31 servo motor is important?

A: The motor manages heat and lasts longer with a thermal time constant of 1555 seconds.

Q: What is the effect of the 8MSA4M.E1-31's efficiency on power usage?

A: The motor's 90% efficiency transforms a lot of electrical energy into mechanical output, decreasing energy waste and operating expenses.

Q: Are fluctuating loads something the 8MSA4M.E1-31 can manage?

A: The motor's peak torque of 16.5 Nm and sustained stall torque of 5.5 Nm enable it to manage varied loads in many industrial applications.

Internal Product Review

  • ‘‘With a 90% efficiency and 5.5 Nm of continuous stall torque, the 8MSA4M.E1-31 synchronous motor from B & R Automation is an excellent and dependable option. It promises strong performance with a peak current capacity of 24 A.’’

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