Mitsubishi Electric FREQROL-S500 · AC-VSD (Variable Speed Drive)

Mitsubishi FR-S520SE-0.75K-EC

The FR-S520SE-0.75K-EC is no longer supplied by Mitsubishi Electric. If one fails, the program is what gets you running again.

  1. ActiveSold and supported normally
  2. Phase OutRetirement announced, still orderable
  3. CancellationNormal sale ended, spares may remain
  4. Total DiscontinuationNo manufacturer supply or repair

ECS stage: Total Discontinuation.

Is the Mitsubishi Electric FR-S520SE-0.75K-EC discontinued?

On ECS's lifecycle assessment, the FR-S520SE-0.75K-EC is discontinued and no longer supplied by Mitsubishi Electric.

Source: ECS lifecycle assessment, based on ECS's internal lifecycle data in Command Centre. Last checked . Always confirm a specific part's status with the manufacturer before buying or planning a migration.

What Total Discontinuation means for you

The manufacturer has finished with the part. You may still find one through surplus or refurbished sellers, or in another site's stores, but that is not a supply chain. When a unit fails, your options are to find one and restore the program onto it, or to migrate the machine.

Both routes start in the same place: having the program. Without a backup, a found spare is just hardware.

How ECS defines Total Discontinuation · all four lifecycle stages

Before replacing a variable speed drive

Matching the motor power and supply voltage is only the start with a drive replacement. We would capture the full parameter set, motor nameplate data, acceleration and deceleration behaviour, control terminals, braking arrangement and any network communications.

Even a manufacturer-recommended successor can use different parameter numbering or I/O behaviour. A verified parameter backup taken while the drive is healthy is normally far easier to work from than reconstructing the machine setup after a failure.

ECS engineering guidance

FR-S520SE-0.75K-EC part details

Manufacturer
Mitsubishi Electric
Range
FREQROL-S500
Name
FREQROL-S500 series 0.75 kW single-phase 200 V class transistorized inverter, EC version
Summary
Compact frequency inverter for variable-speed control of three-phase induction motors. Rated for a 0.75 kW (1 HP) motor, with single-phase 200–240 VAC input, three-phase output, 4.1 A rated output current, and a 0.5–120 Hz output-frequency range. The FR-S500 series is discontinued.
Programming software
FR-Configurator
Software versions
Held in Command Centre, matched to firmware
Programming cable
Held in Command Centre

Common questions about the FR-S520SE-0.75K-EC

Is the Mitsubishi Electric FR-S520SE-0.75K-EC discontinued?

On ECS's lifecycle assessment, the FR-S520SE-0.75K-EC is discontinued and no longer supplied by Mitsubishi Electric.

Can I still buy a FR-S520SE-0.75K-EC?

Not from Mitsubishi Electric. Surplus and refurbished sellers may have stock; check provenance and test before fitting.

How do I back up a FR-S520SE-0.75K-EC?

It is programmed with FR-Configurator. The exact software version and cable depend on the unit's firmware. ECS records both for every unit it captures, alongside a verified backup.

An ECS engineer capturing a control panel on a tablet: PLC, drive and power supply identified and synced to Command Centre

With a backup, a failed unit is hours. Without one, it is days.

A Capture audit finds every FR-S520SE-0.75K-EC on your site, takes a backup of each one it can reach, and records the software version and cable needed to restore it. When a discontinued unit fails and a replacement turns up, the program is ready to load.

  • Every device located, photographed and lifecycle-checked
  • Backups taken on the day, with software version and cable recorded
  • Findings report, plus a populated Command Centre
  • No production downtime
See how Capture works

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