Description
The Mitsubishi D-AL-11K is an AC line reactor (input reactor) used in Mitsubishi MDS-E / MDS-D CNC drive systems, installed on the AC input side of the converter (CV) unit.
It is a passive protection component, not a drive or motor.
š§ Key Specifications (D-AL-11K)
| Specification | Value |
|---|---|
| Type | AC Reactor (Line Reactor) |
| Series | MDS-E / MDS-D compatible |
| Rated Capacity | 11 kW |
| Rated Current | 40 A |
| Rated Voltage | 200ā240 V AC |
| Frequency | 50/60 Hz |
| Function | Input current smoothing + harmonic suppression |
| Cooling | Natural air cooling |
| Installation | In series with CV (converter) unit input |
š Verified from Mitsubishi CNC specifications: D-AL-11K is matched specifically with CV-110 power supply units (11 kW class).
āļø What it does
The D-AL-11K is installed between the AC supply and CNC converter unit to:
- Reduce harmonic distortion back to the power grid
- Limit inrush current during power ON
- Protect the CV unit from electrical stress
- Improve overall power factor
- Smooth incoming 3-phase AC supply
š Compatible CNC power supply unit
Used mainly with:
- MDS-E-CV-110 (11 kW class)
It is part of the standard Mitsubishi CNC drive input protection set.
š Features
- Simple and highly reliable passive coil design
- Improves stability of CNC drive system
- Reduces electrical noise and EMI
- Extends lifespan of converter (CV) unit
- Maintenance-free operation
š Typical applications
- CNC machining centers
- CNC turning machines
- Mitsubishi MELDAS drive systems
- Servo + spindle CNC cabinets (MDS-E systems)

