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MITSUBISHI Power Supply
Brand: MITSUBISHI -
Code:ETU-3MK0IZ
| Combination name | Availability | Price |
|---|---|---|
CNC Power Supply Unit – MITSUBISHI ETU-3MK0IZ
The ETU-3MK0IZ is a CNC power supply unit (“CNC Power Supply Unit”) manufactured by Mitsubishi Electric, designed to provide regulated supply voltages to all modules of the CNC system (CPU board, I/O boards, servo drives, and axis units). The code identifies a power supply unit from the MELDAS family or equivalent Mitsubishi Electric CNC series. The component is a dedicated switching unit, with specific connectors for the CNC rack internal bus. Revision variants may differ in output voltages or connector configuration.
The power supply unit is the heart of the control electronics: it generates and stabilises the DC voltages required by all modules of the CNC system. Without it the entire system remains inactive; even a partial fault — such as an out-of-tolerance output — can cause unexpected anomalies in machining cycles, loss of parameters, or damage to downstream modules.
Mitsubishi Electric is one of the world’s leading industrial automation manufacturers, with a CNC division operating under the MELDAS brand (later MELDASMAGIC and the M70/M700/M800 series). Support for legacy products is limited; components from older series are legacy / discontinued and available only as used units or through specialist repair services.
Main Technical Specifications
| Type | CNC power supply unit |
| Part number | ETU-3MK0IZ (ETU3MK0IZ) |
| Brand | Mitsubishi Electric |
| Known application | Mitsubishi Electric CNC systems MELDAS / M-series |
| Function | Generation and stabilisation of DC supply voltages for CNC modules (CPU, I/O, axes) |
| Input voltage | 100–240 V AC, 50/60 Hz |
| Output voltages | ±15 V DC, +5 V DC, +24 V DC |
| Rated power | ~50–200 W |
| Interfaces / connectors | Dedicated connectors for Mitsubishi CNC bus/rack; AC input terminal strip |
| Built-in protections | Overvoltage, overcurrent, short-circuit (typical for industrial switching PSUs) |
| Weight | ~0.8–2.5 kg |
| Dimensions | ~150–300 mm |
| Production status | Legacy / discontinued — used/surplus/repair only |
