The part number 6SL3111-4VE21-6FA0 is a Siemens SINAMICS S120 Combi Power Module designed for multi-axis servo and motion-control systems.
Main specifications
- Series: SINAMICS S120
- Type: Combi Power Module
- Input supply: 3AC 380–480 V
- Rated power: 16 kW
- Output: 3AC 400 V
- Output currents: 18 A / 9 A / 5 A / 5 A
- Cooling: External air cooling
- Frame size: COMBI
- Supports Extended Safety Integrated functions
Technical details
- Dimensions: 260 × 380 × 304 mm
- Weight: approx. 18.9 kg
- DC link voltage: 460–720 VDC
Lifecycle / replacement
Siemens lists this module as a spare part with a successor:
- Replacement model: 6SL3111-4VE21-6FA2
Position in the S120 family
This is a 4-axis Combi module, unlike the earlier 3VE series you asked about:
-
3VE = 3-axis configurations
-
4VE = 4-axis configurations
The 4VE21-6FA0 configuration provides:
- one higher-current axis (18 A)
- one medium axis (9 A)
- two smaller axes (5 A / 5 A)
Typical applications
Used in:
- CNC machines
- Packaging machinery
- Printing systems
- Multi-servo automation systems
- Converting and tension-control lines
Related variants
Common nearby variants include:
-
-
6SL3111-4VE21-6EA0 → higher current version (24A / 9A / 9A / 9A)
-
6SL3111-4VE22-0HA0 → larger 20 kW version
