Part Number:

AM257S-0011

Manufacturer: Beckhoff
Series: AM Servo Motor Series
  • Rated 4.6 (34 total ratings)
  • Straightforward Pricing: No Rush Fees, No Credit Card Fees
  • Call for Expedited Shipping and Product Condition Options
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Worldwide Delivery
Repair Options Available

The Beckhoff AM257S-0011 motor operates at 400/460 V, delivering a rated torque of 3 Nm. Designed for precision, it includes a resolver pole count of 2 for accurate positional feedback.

Part Number:

AM257S-0011

Manufacturer: Beckhoff
Series: AM Servo Motor Series
  • Rated 4.6 (34 total ratings)
  • Straightforward Pricing: No Rush Fees, No Credit Card Fees
  • Call for Expedited Shipping and Product Condition Options
Free Ground Shipping
Worldwide Delivery
Repair Options Available

The Beckhoff AM257S-0011 motor operates at 400/460 V, delivering a rated torque of 3 Nm. Designed for precision, it includes a resolver pole count of 2 for accurate positional feedback.

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Product Description

The Beckhoff AM257S-0011 servo motor is designed for industrial automation that delivers high performance and precision in various applications. The motor is designed to meet rigorous standards and combine robust construction with dependable functionality to guarantee consistent operation in diverse environments.

The AM257S-0011 servo motor operates within a voltage range of 400 to 460 V and has a current rating of 2.7 A. It has a speed rating of 3000 rpm and a torque rating of 3 Nm. The motors torque constant (KTrms) is 1.65 Nm/A, and its voltage constant (KErms) is 97 mVmin. The motor's maximal current of 11 A and standstill power of 4.6 Nm enables it to manage substantial loads. The thermal time constant of the motor is 20 minutes, and the winding resistance between stages is 6.3 Ω. This serves to regulate the operating temperature, and the motor is equipped with a resolver pole count of 2, that enables it to provide precise positional information. The motor can accommodate a radial load of 650 N and an axial load of 180 N at the shaft end, and its rotor moment of inertia is set at 3.1 kgcm². This ensures that the motor remains stable when it is fixed. The additional brake generates 14 W of electricity and 6 Nm of holding torque.

The AM257S-0011 motor has a moment of inertia of 0.38 kgcm², so It is effective for managed start-stop applications because the application delay time and the release delay time are both within the range of 10 to 15 ms. The EMV-RES socket has 12 conductors to facilitate a more reliable connection, and the motor is equipped with a thermal switch at 145°C ±5 for safety. Wake Industrial provides worldwide delivery of the AM257S-0011 motor, that is replaced by a one-year replacement warranty.

AM257S-0011 Technical Specifications

Mains Supply Voltage (Un): 400/460 V
Rotor Moment of Inertia (J): 3.1 kgcm²
Rated Torque at Rated Speed (Mn): 3 Nm
Winding Resistance (Phase-Phase): 6.3 Ω
Torque Constant (KTrms): 1.65 Nm/A
Rated Current: 2.7 A
Thermal Time Constant (tTH): 20 min
Voltage Constant (KErms): 97 mVmin
Radial Load at Shaft End (FR): 650 N
Rated Speed (nn): 3000 rpm
Standstill Torque (M0): 4.6 Nm

Frequently Asked Questions about AM257S-0011


Q: Does the AM257S-0011 motor have overload protection?

A: Yes, the motor includes a thermal switch at 145°C ±5. This protects against overheating during intensive operation, enhancing reliability.

Q: How does the AM257S-0011 handle radial loads?

A: The motor supports a radial load of 650 N at the shaft end. This allows stable operation even under significant load conditions.

Q: Why is the AM257S-0011 motor rated at 400/460 V?

A: The 400/460 V rating aligns with standard industrial power supplies. It ensures optimal compatibility and efficient power delivery for various systems.

Q: Do the specifications support high-speed applications for AM257S-0011?

A: Yes, the motor operates at 3000 rpm rated speed. This high speed suits applications requiring rapid movement and quick positioning.

Q: How does the AM257S-0011 ensure accurate position control?

A: The motor includes a 2-pole resolver for precise feedback. This feature supports accurate positioning essential in automation tasks.

Internal Product Review

  • ‘‘The Beckhoff AM257S-0011 motor stands out with its 3 Nm rated torque and 20-minute thermal time constant, offering consistent performance. Its optional 6 Nm holding brake and 0.95 kW power rating support demanding applications. The motor is an excellent choice for precision-driven operations.’’

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