Part Number - MR-J3-10B

MR-J3-10B is

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Product Details

  • Melservo MR-J3 Servo Amplifier (MRJ310B)
  • Manufacturer: Mitsubishi
  • Series: MELSERVO MR-J3

Product Description

The MR-J3-10B (MRJ310B) is an Melservo MR-J3 servo amplifier with a SSC NETWORK. The voltage can be operated on either 3-phase or 1-phase. If it runs on the 3-phases, the voltage will be 200 to 230VAC. If the servo amplifier runs on 1-phase, the voltage is 230VAC. Both types of phases are with frequencies of 50/60Hz. The voltages of the MR-J3-10B servo amplifier can fluctuate, however contingently upon what voltage phase type is used. The 3-phase voltage can span from 170 to 253VAC; the 1-phase voltage has a voltage range of 207 to 253VAC. The frequency may be able to waver +5% to -5% of 50/60Hz.

There are four motors, the HF-KP053, HF-KP13, HF-MP053, and HF-MP13, which are applicable to the MR-J3-10B servo amplifier. On where to connect the chosen servo motor will be adumbrated below.

The MR-J3-10B servo amplifier has multiple ports and three connectors. The CN2 connector may connect to the encoder of a servo motor. The CN1A and CN1B port may link to the SSCNET III. Both ports are able to attach with another MR-J3-B. CN1B ports connect to the CN1A port of a succeeding port; the CN1A port may connect to the CN1B port of the preceding MR-J2-B. The MR-J3-10B servo amplifier’s CN1A may also attach to the motion control module in the MELSEC system from the Q series. The CN5 port can attach to the personal computer that contains a MR Configurator software. Lastly, the three connectors all append to or are used for a power supply.

Here is the manual referenced:

Technical Specifications

Part Number: MR-J3-10B (MRJ310B)
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

MR-J4-100B - Mitsubishi Melservo MR-J4 Servo Amplifier
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-J3-10B 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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