Part Number - MR-J4-100A

MR-J4-100A is

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Product Details

  • Melservo MR-J4 Servo Amplifier 1kW (MRJ4100A)
  • Manufacturer: Mitsubishi
  • Series: MELSERVO MR-J4

Product Description

The Mitsubishi MR-J4-100A (MRJ4100A) is a Melservo MR-J4 servo amplifier with an output wattage of 1kW. This servo amplifier has an 3-phase input voltage of 200 to 240VAC and a permissible voltage flux between 170 to 264VAC. The input frequency is 50/60Hz and has a current of 5.0 Amp. The output of the MR-J4-100A servo amplifiers voltage of 170V and a frequency between 0-360Hz while the output current is 6.0 Amp. The MR-J4-100A servo amplifier itself weighs 3.1 pound (1.4kg).

The protective structure of the MR-J4-100A servo amplifier has an IP rating of IP20. This rating gives it a protection against finger contact or the contact with other foreign objects. The MR-J3-100A amplifier should abode in a room that retains the ambient temperature between 32 and 131°F (0 to 55°C), in storage, it can remain in temperatures between -4 and 149°F (-20 to 65°C) to keep the proper operations.

The MR-J4-100A servo amplifier has can be utilized as an amplifier for three rotary servo motors from the HG series; and it may be employed for the TM-RFM018E20 direct drive motor from the TM-RFM series. The motor itself can be concatenated to the servo amplifier by an encoder cable to the CN2 port and a motor power to the U, V, and W terminals.

The MR-J4-100A servo amplifier can be linked to a GOT series operator interface by a RS-422/RS-485 cable to the CN3 port. Additionally, a USB communication connector (MR-J3USBCBL3M) can connect a personal computer to the CN5 utilizing the MR configurator.

Here is the manual referenced:

Technical Specifications

Part Number: MR-J4-100A (MRJ4100A)
Module Type: Servo Amplifier
Voltage/Frequency: 200 to 240VAC, 3-phase 50/60Hz
Output Wattage: 1kW
Weight: 3.1lbs (1.4kg)

Related Parts

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HC-UFS72K - Mitsubishi Melservo HC Servo Motor with KEY
A0J2HCPU - Mitsubishi A Series CPUs A0J2 Controller
MR-J2S-100A - Mitsubishi Melservo MR-J2 Servo Amplifier

Shipping and Order Information

  • TRW Supply can usually ship in stock items same day before 3:30 PM EST for no extra cost and before 5 PM with a rush fee
  • Mitsubishi MELSERVO MR-J4 Shipping options vary by location. Call for an accurate quote.


  • The Mitsubishi MR-J4-100A comes with a two year warranty.
  • A three year warranty is available. Please inquire for pricing.

Additional Information

TRW Electric & Supply Company is a global automation supplier. We deliver reliable new and refurbished parts at a great value. Our product focus is Omron and Mitsubishi products, but we have been able to provide our customers with solutions from other manufacturers as well. Our goal is to supply the automation industry with the best service and pricing, and of course conduct business with a high level of integrity.

Authorized Distributors

A Mitsubishi Authorized Distributor for MELSERVO-MR-J4 is not the only source for Mitsubishi products. Many of the Mitsubishi products have been discontinued and therefore are no longer available from authorized suppliers. TRW Electric & Supply has many new and refurbished Mitsubishi MELSERVO-MR-J4 parts available for purchase.

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