Siemens 1FK7 042-2AF71-1RH0 Synchronous Motor

The Siemens 1FK7 042-2AF71-1RH0 is a high-performance synchronous motor engineered for precision, efficiency, and durability. Designed for integration within the SINAMICS S120 drive family, this motor delivers exceptional torque accuracy and smooth operation, making it ideal for demanding motion control applications such as robotics, CNC machinery, and automated production lines. Its compact frame and advanced encoder technology ensure superior positioning performance and operational reliability.

Manufacturer: Siemens
Type: Synchronous Motor
MNR: 1FK7 042-2AF71-1RH0
Drive Family: SINAMICS S120
Series: 1FK7
Serial/YF No.: N2630 6210 03 001
Marking Code: RN 007
Encoder Model: AM20DQI
Suffix: X11 “ Plug-in connector for the motor brake

Technical Information

• Frame Size: 42
• Rated Torque (M‚): 3 Nm
• Nominal Torque (M‚™): 2.6 Nm
• Rated Current (I‚): 2.2 A
• Nominal Current (I‚™): 2 A
• Brake Voltage: 24 V DC
• Brake Power: 12 W
• Brake Torque: 4 Nm
• Voltage (Uin): 270 V (3 Phase)
• Nominal Speed (n‚™): 3000 rpm
• Maximum Speed (n‚˜‚‚“): 9000 rpm
• Thermal Class: 155 (F)
• Protection Class: IP64
• Power Class: IC410 (Surface cooled, natural convection)
• Encoder: Absolute encoder 20 bits (resolution 1048576, encoder-internal 512 S/R) + 12 bits multi-turn (4096 revolutions)
• Temperature Sensor: Pt1000 integrated
• Compliance: EN 60034, EAC
• Connector Type: Circular multi-pin connectors for power and feedback

This Siemens synchronous motor provides exceptional precision and stability in continuous and dynamic motion tasks. With its absolute encoder and integrated brake system, it ensures high accuracy even in multi-axis applications. It is built with durable materials, compliant with EN 60034 standards, and ideal for both high-speed and high-torque applications where performance and reliability are critical.