Siemens 6SL3210-1KE28-4AF1 SINAMICS G120C Converter
A large-frame compact converter with integrated Class A filtering, PROFINET, EtherNet/IP and Safe Torque Off.
Product Profile
6SL3210-1KE28-4AF1 is the FSD SINAMICS G120C article for higher-power 400 V machines. It combines a 45 kW low-overload rating with Ethernet-based automation interfaces and a filtered line-side design.
The AF1 suffix distinguishes this communication and filter combination from other G120C articles. Its larger enclosure, airflow and current class require a cabinet design prepared specifically for the FSD hardware.
Technical Data
| Manufacturer | Siemens |
|---|---|
| Article Number | 6SL3210-1KE28-4AF1 |
| Product Family | SINAMICS G120C |
| Input Supply | 3 AC 380–480 V, +10 / -20%, 47–63 Hz |
| Rated Power, Low Overload | 45 kW |
| Rated Power, High Overload | 37 kW |
| Rated Output Current, Low Overload | 82.5 A |
| Rated Output Current, High Overload | 68 A |
| EMC Filter | Integrated Class A filter |
| Control Supply | External 24 V |
| Standard I/O | 6 DI, 2 DO, 1 AI, 1 AO, 1 motor-temperature input |
| Fail-Safe Input | 1 |
| Safety Function | Safe Torque Off integrated |
| Communication | PROFINET and EtherNet/IP |
| Protection | IP20 / UL open type |
| Cooling | Integrated fan; 0.055 m³/s airflow |
| Operating Temperature | -20 to +40 °C |
| Efficiency Class | IE2 |
System Role
- Provides variable-speed motor control and network integration in one compact FSD assembly.
- Supports PROFINET or EtherNet/IP machine architectures through the built-in Ethernet interface.
- Handles hardwired interlocks and local process signals through the onboard control terminals.
- Monitors supported motor-temperature sensors while the engineered protection system manages the complete motor circuit.
- Offers an integral STO channel for incorporation into a validated stop function.
Compatibility
- Match the motor current and real overload profile to the published low- or high-overload duty.
- Provide cabinet airflow, clearance and heat management suitable for the FSD enclosure.
- Select line protection, conductors, motor cable and braking equipment for the exact current class.
- Confirm the controller protocol, device naming or IP addressing, telegram and safety-interface design.
- Follow Siemens EMC bonding and shield-termination practices for the integrated filter to be effective.
Applications
- Large conveyors, pumps, fans, mixers and process auxiliaries.
- PROFINET-based production equipment requiring a compact networked drive.
- EtherNet/IP machinery where the controller communicates directly with the converter.
- Industrial panels that benefit from integrated Class A filtering and onboard safety input.
FAQ
Why are 45 kW and 37 kW both listed?
They are the published ratings for different low-overload and high-overload operating profiles.
Which Ethernet protocols are available?
The exact AF1 article supports PROFINET and EtherNet/IP.
Can an FSA or FSB spare replace this unit?
No. FSD has a different power, current, size and cooling class.
Does the integrated filter eliminate EMC installation work?
No. Correct bonding, shielding, cable routing and system verification remain necessary.
What panel factor is especially important at this rating?
The specified cooling airflow and enclosure heat removal must be maintained.
What data should be supplied for replacement selection?
Provide the motor nameplate, load cycle, line system, network protocol, cabinet conditions and full existing article number.
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