Part Number - MR-J3-10A

MR-J3-10A is

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Product Details

  • Melservo MR-J3 Servo Amplifier 100W (MRJ310A)
  • Manufacturer: Mitsubishi
  • Series: MELSERVO MR-J3

Product Description

The Mitsubishi MR-J3-10A (MRJ310A) is a Melservo MR-J3 series servo amplifier with an output wattage of 100W. The servo amplifier has a power supply with a voltage of 200 to 230VAC which operates on 3 phases with a frequency of 50/60Hz or a 1 phase with a voltage of 230VAC. The voltage for both phase options of the MR-J3-10A amplifier may fluctuate. For the 3-phase voltage, the voltage may augment its range between 170 to 253VAC and for the 1-phase, the voltage may span between 207 to 253VAC. The frequency for both performative phases may waver between +5% to -5%. The frequency response of the servo amplifier has a speed of 900Hz.

There are four servo motors that the MR-J3-10A servo amplifier may be applied to, namely: HF-KP053, HF-KP13, HF-MP053, and HF-MP13. These may be connected to the servo amplifier as related below.

The MR-J3-10A servo amplifier may connect with a variety of objects with its many ports. The CN5 port may connect to a personal computer by utilizing a USB cable. The CN3 can append to a GOT by deploying a RS-232 converter connector. Also, the CN1 port may link to a program control module, and can connect to multiple modules from the FX Mitsubishi series. The MR-J3-10A servo amplifier has a CN2 port which attaches to the encoder of a servo motor. The servo motor may also be connected to the ‘U, V, and W’ connector. The other two connectors on the servo amplifier can attach to its power supply.

Here is the manual referenced:

Technical Specifications

Part Number: MR-J3-10A (MRJ310A)
Module Type: Servo Amplifier
Voltage/Frequency: 200 to 230VAC, 3-phase 50/60Hz; 230VAC, 1-phase 50/60Hz
Output Wattage: 100W
Weight: 1.76lbs (0.8kg)

Related Parts

A1NCPU - Mitsubishi A Series CPUs Control Module
HC-KFS43B - Mitsubishi Melservo HC Servo Motor with Brake (HCKFS43B)
HF-KP43B - Mitsubishi HF Series Servo Motor with Brake (HFKP43B)

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-J3-10A 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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