Description
DH-AL-75K is a Mitsubishi Electric AC reactor (line reactor) used in CNC servo and spindle drive systems, mainly with MDS-EH / MDS-DH series power supply units.
Description
- Manufacturer: Mitsubishi Electric
- Series: DH-AL series (400V CNC systems)
- Model: DH-AL-75K
- Type: AC Line Reactor (input reactor)
- Rated Capacity: 75 kW class
Purpose / Function
DH-AL-75K is a passive inductive component, installed on the AC input side of CNC converter systems.
It is used to:
- Suppress harmonic distortion generated by the power supply unit
- Limit inrush current when the CNC system is powered ON
- Protect rectifier circuits inside MDS power supply modules
- Improve power factor and reduce electrical noise
- Increase stability and lifespan of the drive system
Compatible Power Supply Unit
From Mitsubishi CNC specifications, it is matched with:
- MDS-EH-CV-750
- MDS-DH-CV-750
Electrical Ratings (typical)
- Rated current: ~142 A
- Voltage class: 380–480 VAC, 3-phase
- Frequency: 50/60 Hz
- Installed in series with the AC input of the CNC converter unit
System Position
AC mains → DH-AL-75K reactor → MDS-EH / DH CV power supply → DC bus → servo/spindle drives