Description
Product Description
The Siemens 1FT7102-5AB71-1BH4 is a SIMOTICS S-1FT7 permanent magnet synchronous servo motor designed for demanding motion control applications requiring exceptional precision, high torque density, and reliable continuous operation. Optimized for use with Siemens SINAMICS S120 drive systems, this servo motor is ideal for CNC machine tools, robotics, packaging machinery, material handling equipment, printing systems, and automated manufacturing lines. The 1FT7 series is recognized for its outstanding dynamic performance, compact design, and high positioning accuracy.
Delivering 4.08 kW of rated power at 1,500 RPM, the motor provides 26 Nm rated torque, 30 Nm stall torque (100 K), and up to 120 Nm peak torque. Its permanent magnet synchronous design offers excellent efficiency, low rotor inertia, rapid acceleration, and precise speed and position control, making it suitable for high-performance industrial automation.
The 1FT7102-5AB71-1BH4 features natural cooling, IM B5 flange mounting, a plain shaft, IP65 protection, integrated Pt1000 temperature monitoring, and a high-resolution absolute encoder with DRIVE-CLiQ interface. The 1BH4 suffix identifies a specific encoder and connection variant within the SIMOTICS S-1FT7 product family while retaining the same core mechanical and electrical characteristics. Exact encoder configuration is determined 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: 4.08 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-resolution absolute encoder
- DRIVE-CLiQ communication interface
- Plain shaft configuration
- IM B5 flange mounting
- IP65 protection
- Integrated Pt1000 temperature sensor
- Rotatable SPEED-CONNECT power connector
- Fully compatible with Siemens SINAMICS S120 drive systems
Technical Specifications
| Specification | Details |
|---|---|
| Part Number | 1FT7102-5AB71-1BH4 |
| Product Family | SIMOTICS S-1FT7 |
| Motor Type | Permanent Magnet Synchronous Servo Motor |
| Cooling Method | Natural Cooling |
| Rated Power | 4.08 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% |
| Rotor Inertia | 91.4 kg·cm² |
| Shaft Type | Plain Shaft |
| Mounting Arrangement | IM B5 Flange |
| Protection Class | IP65 |
| Temperature Monitoring | Integrated Pt1000 Sensor |
| Encoder Type | High-Resolution Absolute Encoder* |
| Encoder Interface | DRIVE-CLiQ |
| Power Connection | Rotatable SPEED-CONNECT Connector |
| Drive Compatibility | Siemens SINAMICS S120 |
| Manufacturer | Siemens |
* The 1BH4 suffix denotes a specific encoder and connector configuration. Exact encoder type and feedback resolution should be verified using the complete Siemens MLFB ordering code.
Applications
- CNC Machining Centers
- CNC Lathes and Milling Machines
- Industrial Robotics
- Packaging Machinery
- Material Handling Systems
- Printing and Converting Equipment
- Semiconductor Manufacturing
- Textile Machinery
- Automated Assembly Lines
- Precision Motion Control Systems




