Description
DH-AL-45K is a Mitsubishi Electric AC reactor (line reactor) used in CNC servo and spindle drive power systems.
Description
- Manufacturer: Mitsubishi Electric
- Series: DH-AL series (400V class CNC systems)
- Model: DH-AL-45K
- Type: AC Line Reactor (input reactor)
- Rated Capacity: 45 kW class
Purpose / Function
DH-AL-45K is a passive inductive component installed on the AC input side of CNC converter units (like MDS-EH / MDS-DH CV units).
It is used to:
- Reduce harmonic distortion generated by the converter
- Limit inrush current at power ON
- Protect rectifier circuits inside the power supply
- Improve power factor and stabilize the supply network
- Reduce electrical stress and overheating in CNC drive systems
Compatible Power Supply Units
From Mitsubishi CNC specifications, DH-AL-45K is matched with:
- MDS-EH-CV-450
- MDS-DH-CV-450
Electrical Ratings (typical)
- Rated current: ~162 A
- Voltage class: 380–480 VAC, 3-phase
- Frequency: 50/60 Hz
- Installed in series with AC input to the power supply unit
System Position
AC mains → DH-AL-45K reactor → MDS-EH / DH CV power supply → DC bus → servo/spindle drives