Description
The Mitsubishi D-AL-45K is an AC line reactor (input reactor) used in MDS-E / MDS-D CNC drive systems, installed between the AC supply and the converter (CV) unit.
It is a power quality and protection component, not a drive or motor.
š§ Key Specifications (D-AL-45K)
| Specification | Value |
|---|---|
| Type | AC Reactor (Line Reactor) |
| Series | Mitsubishi CNC MDS systems |
| Rated Capacity | 45 kW |
| Rated Current | ~162 A |
| Rated Voltage | 200ā240 V AC |
| Frequency | 50/60 Hz |
| Function | Harmonic suppression + inrush current limiting |
| Cooling Method | Natural air cooling |
| Installation | Series connection with CV unit input |
š Mitsubishi CNC specification tables confirm:
D-AL-45K is matched with MDS-E-CV-450 (45 kW converter unit) and is part of the standard input reactor lineup for CNC drive systems.
āļø What it does
The D-AL-45K is installed in CNC cabinets to:
- Reduce harmonic distortion sent back to the power grid
- Limit inrush current when powering ON the CNC system
- Protect the CV (converter) unit from electrical stress
- Improve power factor and system stability
- Smooth incoming 3-phase AC supply
š Typical matching unit
- MDS-E-CV-450 (45 kW CNC converter unit)
š Features
- Passive coil (no electronics ā very reliable)
- Improves CNC system power quality
- Reduces electrical noise (EMI)
- Extends life of converter unit
- Maintenance-free operation
š Applications
- CNC machining centers
- CNC turning machines
- Heavy industrial CNC systems
- Mitsubishi MELDAS drive cabinets (MDS-E series)

