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MITSUBISHI Power Supply
Brand: MITSUBISHI -
Cat: Power Supply
Code:SF-PW30
| Combination name | Availability | Price |
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CNC Power Supply Unit – MITSUBISHI SF-PW30
The SF-PW30 is a switching power supply module (“Power Supply Unit”) manufactured by Mitsubishi Electric, belonging to the SF series of CNC system components and servo drive accessories. The internal part number is SFPW30. The unit provides the stabilised DC supply voltages required by logic boards and control modules within the CNC rack, interfacing with the main system or drive chassis. It is documented on MELDAS CNC systems and SF-series Mitsubishi Electric drives; the suffix “30” presumably denotes the nominal power rating in watts or a size variant.
The power supply is the energy backbone of the CNC system: it converts and regulates mains voltage into precise DC rails (+5 V, ±15 V, +24 V) that power the CPU, axis control boards and logic circuits throughout the controller. A power supply failure causes the immediate shutdown of the entire machine: without stable supply voltages no CNC module can operate correctly, making this component critical for production continuity and system safety.
Mitsubishi Electric is one of the world’s leading manufacturers of CNC systems, servo drives and industrial automation equipment, with over a century of history in electrical and electronic engineering. The FA (Factory Automation) division produces the MELDAS and MELSERVO systems, widely deployed across global manufacturing. SF-series products in their older versions are considered legacy / discontinued: availability must be verified through specialist CNC spare-parts distributors.
Main Technical Specifications
| Type | CNC switching power supply module (Power Supply Unit) |
| Part number | SF-PW30 (SFPW30) |
| Brand | Mitsubishi Electric |
| Known application | SF-series / MELDAS CNC systems – Mitsubishi Electric |
| Function | Stabilised DC power supply for CNC logic boards and control modules |
| Input voltage | 100–240 V AC, 50/60 Hz |
| Output voltages | +5 V, ±15 V, +24 V DC |
| Power rating | ~30 W |
| Interfaces | Edge connectors and terminal strip on CNC rack |
| Weight | ~0.5–1.5 kg |
| Dimensions | ~150–250 mm |
| Production status | Legacy / discontinued — used/surplus/repair only |
