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Mitsubishi Electric MELSERVO-J2 · Servo Amplifer

Mitsubishi MR-J2S-200B4

Order number 154327

The MR-J2S-200B4 is no longer supplied by Mitsubishi Electric. If one fails, the program is what gets you running again.

  1. Active RolloutSold 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 MR-J2S-200B4 discontinued?

On ECS's lifecycle assessment, the MR-J2S-200B4 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 servo or motion hardware

Motion hardware is usually tied to the motor, feedback device, gearing, tuning, safety functions and controller-side motion instructions. We would identify those dependencies before assuming a newer unit can replace the existing one.

For a production-critical axis, planned migration gives time to retune and prove motion safely; doing that work during an unplanned stoppage is where obsolescence becomes expensive.

ECS engineering guidance

MR-J2S-200B4 part details

Manufacturer
Mitsubishi Electric
Range
MELSERVO-J2
Summary
The Mitsubishi MR-J2S-200B is a high-performance servo amplifier designed for precise and efficient control of AC servo motors in various industrial applications. This 2 kW servo drive operates at 200/230 VAC, 50/60 Hz, and delivers an output of 170V with a frequency range of 0-360 Hz. The MR-J2S-200B is part of the reliable J2 Series, ensuring compatibility with a wide range of Mitsubishi servo motors. With its compact design and advanced features, this servo amplifier is an ideal choice for automation systems requiring precise motion control, such as robotics, CNC machines, and packaging equipment. Experience smooth operation and reduced downtime with the Mitsubishi MR-J2S-200B servo amplifier.
Programming software
MR Configurator (legacy)
Software versions
Held in Command Centre, matched to firmware

Common questions about the MR-J2S-200B4

Is the Mitsubishi Electric MR-J2S-200B4 discontinued?

On ECS's lifecycle assessment, the MR-J2S-200B4 is discontinued and no longer supplied by Mitsubishi Electric.

Can I still buy a MR-J2S-200B4?

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

How do I back up a MR-J2S-200B4?

It is programmed with MR Configurator (legacy). 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 MR-J2S-200B4 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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