Description
Product Description
The Siemens 1FT7102-5AB71-1BB3 is a high-performance SIMOTICS S-1FT7 permanent magnet synchronous servo motor engineered for precision motion control in advanced industrial automation applications. Designed for seamless integration with Siemens SINAMICS S120 drive systems, this servo motor delivers exceptional positioning accuracy, high torque density, and rapid dynamic response, making it ideal for CNC machine tools, robotics, packaging machinery, printing systems, and automated production lines.
Operating at an optimum output power of 4.1 kW and a rated speed of 1,500 RPM, the motor provides 26 Nm rated torque, 30 Nm stall torque (100 K), and a maximum torque of 120 Nm. Its permanent magnet rotor design offers excellent efficiency, smooth operation, and low rotor inertia for superior acceleration and precise servo performance.
The 1FT7102-5AB71-1BB3 features natural cooling, IM B5 flange mounting, IP65 protection, a plain shaft, integrated Pt1000 temperature monitoring, and a high-resolution encoder for accurate speed and position feedback. The turnable SPEED-CONNECT power connector enables quick installation and reliable operation in demanding industrial environments. Encoder variant and connector configuration are defined by the complete Siemens MLFB ordering code.
Key Features
- Genuine Siemens SIMOTICS S-1FT7 synchronous servo motor
- Permanent magnet synchronous motor technology
- Natural cooling
- Rated output power: 4.1 kW
- Rated speed: 1,500 RPM
- Rated torque: 26 Nm
- Stall torque (100 K): 30 Nm
- Maximum torque: 120 Nm
- Maximum mechanical speed: 6,000 RPM
- High torque density and fast dynamic response
- Plain shaft configuration
- IM B5 flange mounting
- IP65 protection class
- Integrated Pt1000 temperature sensor
- High-resolution encoder feedback
- Turnable SPEED-CONNECT power connector
- Optimized for Siemens SINAMICS S120 drive systems
Technical Specifications
| Specification | Details |
|---|---|
| Part Number | 1FT7102-5AB71-1BB3 |
| Product Family | SIMOTICS S-1FT7 |
| Motor Type | Permanent Magnet Synchronous Servo Motor |
| Cooling Method | Natural Cooling |
| Rated Power | 4.1 kW |
| Rated Speed | 1,500 RPM |
| Rated Torque | 26 Nm |
| Stall Torque (100 K) | 30 Nm |
| Maximum Torque | 120 Nm |
| Rated Current | 8 A |
| Maximum Current | 45 A |
| Maximum Mechanical Speed | 6,000 RPM |
| Maximum Inverter Speed | 2,680 RPM |
| Number of Poles | 10 |
| Efficiency | 93% |
| Shaft Type | Plain Shaft |
| Mounting Arrangement | IM B5 Flange |
| Protection Class | IP65 |
| Temperature Sensor | Pt1000 |
| Encoder | High-Resolution Encoder* |
| Power Connection | Turnable SPEED-CONNECT Connector |
| Drive Compatibility | Siemens SINAMICS S120 |
| Manufacturer | Siemens |
* Encoder version and optional features depend on the complete Siemens MLFB configuration.
Applications
- CNC Machining Centers
- CNC Turning and Milling Machines
- Industrial Robotics
- Packaging Machinery
- Printing and Converting Equipment
- Material Handling Systems
- Automated Assembly Lines
- Textile Machinery
- Semiconductor Manufacturing Equipment
- High-Precision Motion Control Systems




