Description
DH-AL-11K is a Mitsubishi Electric AC reactor (line reactor) used in CNC servo/spindle drive power systems, especially with the MDS-EH / MDS-DH series converter units.
Description
- Manufacturer: Mitsubishi Electric
- Series: DH-AL series
- Model: DH-AL-11K
- Type: AC Reactor (Input line reactor)
- Rated Capacity: 11 kW class
Purpose / Function
The DH-AL-11K is an auxiliary power quality component, not a drive or power supply.
It is used to:
- Reduce current harmonics from CNC converter units
- Limit inrush current during power ON
- Protect the MDS power supply (rectifier section)
- Improve input power factor and stability
- Reduce stress and heating in the drive system
Where it is used
Typically paired with:
- MDS-EH-CV-110
- CNC spindle/servo power supply systems around 11 kW class
Electrical Ratings (typical)
- Rated capacity: 11 kW
- Rated current: ~21 A
- Rated voltage: 380–480 VAC, 3-phase
- Frequency: 50/60 Hz
- Weight: ~3.7 kg
System role (simple view)
AC mains → DH-AL-11K reactor → MDS-EH-CV-110 power supply → DC bus → servo/spindle drives