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Lenze MFEMAXX071-42C1C Asynchronous Servo Motor | 11.5kW 3450rpm 14Nm IP55

The Lenze MFEMAXX071-42C1C is an 11.5kW asynchronous servo motor with 3450rpm rated speed, 14Nm rated torque, 120Hz rated frequency, and IP55 protection for high-performance industrial automation and motion control systems.

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Product Description

The Lenze MFEMAXX071-42C1C is a high‑performance three‑phase asynchronous servo motor designed for demanding industrial automation tasks such as conveyors, packaging lines, material handling, and general motion control. It delivers 11.5kW power at a rated speed of 3450rpm (120Hz), providing a rated torque of 14Nm with 82.8% efficiency and power factor cosφ of 0.80, making it suitable for dynamic, continuous‑duty applications. The motor supports various supply voltages depending on the drive system and can be combined with different feedback encoders and communication interfaces for precise closed‑loop control and easy integration with Lenze inverters.

Built to EN 60034 and ISO Class F standards, the MFEMAXX071‑42C1C offers IP55 protection against dust and water jets, S1 continuous duty rating, and an ambient temperature capability up to 40°C for reliable 24/7 operation. With a reduction ratio of i = 3.565 (when used with the corresponding gearbox), 17.3kg weight, and multiple mounting options (e.g., B3/B5 style), it fits a wide range of machines while providing robust mechanical performance and long service life.

Technical Specifications

Parameter Specification
Model MFEMAXX071-42C1C
Brand Lenze
Motor Type Asynchronous servo motor
Power Range 11.5kW
Rated Speed 3450rpm
Rated Torque 14Nm
Rated Frequency 120Hz
Efficiency 82.8%
Power Factor cosφ = 0.80
Reduction Ratio i = 3.565 (with matching gearbox)
Protection Degree IP55
Insulation Class ISO Class F
Duty Type S1 (continuous duty)
Weight 17.3kg
Ambient Temperature Max 40°C

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