Description
Siemens 6SL3420-1TE21-8AA1 – Description
6SL3420-1TE21-8AA1 is a Siemens SINAMICS S120 Single Motor Module in the Booksize Compact format, designed for demanding servo and motion-control applications. The module operates from a 600 V DC link and delivers a 3-phase 400 V AC output with a rated output current of 18 A. It features internal air cooling, optimized pulse patterns, integrated DRIVE-CLiQ connectivity, and support for advanced SINAMICS Safety Integrated functions, making it suitable for CNC machinery, robotics, packaging systems, printing equipment, and multi-axis automation solutions.
Key Specifications
| Parameter | Value |
|---|---|
| Product Number | 6SL3420-1TE21-8AA1 |
| Product Family | SINAMICS S120 |
| Module Type | Single Motor Module |
| Input Voltage | DC 510–720 V |
| Nominal DC Link Voltage | DC 600 V |
| Output Voltage | 3 AC 400 V |
| Rated Output Current | 18 A |
| Maximum Output Current | 54 A |
| DC Link Current | 22 A |
| Rated Motor Power | 9.7 kW |
| Frame Size | Booksize Compact |
| Cooling Method | Internal Air Cooling |
| Communication Interface | DRIVE-CLiQ |
| Dimensions (W × H × D) | 75 × 270 × 226 mm |
| Weight | Approx. 3.4 kg |
| Safety Functions | Supports advanced Safety Integrated functions |
Description
The Siemens 6SL3420-1TE21-8AA1 SINAMICS S120 Single Motor Module is a high-performance drive power module engineered for precision motion-control applications. With a 600 V DC link input, 400 V AC motor output, and 18 A rated current capacity, it delivers reliable and dynamic motor control for industrial automation systems. The compact Booksize design saves cabinet space while integrated DRIVE-CLiQ communication simplifies commissioning and diagnostics. Advanced safety functionality, optimized pulse patterns, and efficient internal air cooling make this module an ideal choice for machine tools, robotics, material handling, packaging, and printing machinery.

