Part Number - MR-J3-100A

MR-J3-100A is

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Product Details

  • Melservo MR-J3 Servo Amplifier (MRJ3100A)
  • Manufacturer: Mitsubishi
  • Series: MELSERVO MR-J3

Product Description

The Mitsubishi MR-J3-100A (MRJ3100A) is a Melservo MR-J3 series servo amplifier that works a general purpose interface. The servo amplifier is compatible with certain motors from the following series: the HF-KP, the HF-MP, the HF-SP, the HC-LP, the HC-RP, the HC-UP, and the HA-LP. The MR-J3-100A servo amplifier has an output voltage of 170 V with an output frequency of 0-360Hz and an output current of 6.0 Amp.

The MR-J3-100A servo amplifier has a 3-phase input voltage of 200 to 230VAC and has a frequency of 50/60Hz, it does have a permissible voltage fluctuation spanning from 170 to 253VAC and a permissible frequency flux of ±5% It generates 1kW. The weight of the product itself is 3.1 pounds (1.4kg).

The MR-J3-100A servo amplifier has a display panel which exhibits data, alarms, and parameters. The motors of the motor series described above can link an encoder cable with a CN2 connector to the CN2 port and a motor power supply cable to the U, V, and W terminals. A RS-422 communications connects to the CN3 port and a GOT operator interface touchscreen. On the front side of the MR-J3-100A amplifier has an optional battery compartment for the MR-J3BAT battery. Also, there is a CN5 port for USB communication cable (MR-J3USBCBL3M) that can connect this servo amplifier to a personal computer. An optional junction terminal block, positioning controllers, and a control signal (which connects to programmable controllers) can be concatenated to the MR-J3-100A servo amplifier to its CN1 port.

Here is the manual referenced:

Technical Specifications

Part Number: MR-J3-100A (MRJ3100A)
Module Type: Servo Amplifier
Voltage/Frequency: 200 to 230VAC, 3-phase 50/60Hz
Output Wattage: 1kW
Weight: 3.1lb (1.4kg)

Related Parts

MR-J4-100B - Mitsubishi Melservo MR-J4 Servo Amplifier
MR-J4-70A - Mitsubishi Melservo MR-J4 Servo Amplifier
HC-KFS43 - Mitsubishi Melservo HC Servo Motor (HCKFS43)
HC-KFS43B - Mitsubishi Melservo HC Servo Motor with Brake (HCKFS43B)

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-J3 Shipping options vary by location. Call for an accurate quote.


  • The Mitsubishi MR-J3-100A 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-J3 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-J3 parts available for purchase.

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