Part Number - HC-MFS43K

HC-MFS43K is

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Product Details

  • Melservo HC Servo Motor with Key (HCMFS43K)
  • Manufacturer: Mitsubishi
  • Series: MELSERVO HC

Product Description

The Mitsubishi HC-MFS43K (HCMFS43K) is a 400W Melservo HC series servo motor with a key. The servo motor has a torque of 1.3 (N x m) or 184.1 (oz x in); but the torque is allowed to function at 3.8 (N x m) or 538.1 (oz x in). The current of the servo motor is ordinarily estimated to be 2.8A and is permitted to acquire a current of 9.0A. The moment of inertia for the HC-MFS43K servo motor is, because it is a standard motor, 0.143 J(x10^-4kg x m^2) or 0.782 J(oz x in^2). The servo motors normal speed is 3000rpm which may be increased to 4500rpm. Nevertheless, it is still allowed to operate for a short period of time at 5175rpm.

The MR-J2S-40CL, MR-J2S-40B, MR-J2S-40A, and MR-J2S-40CP are the four amplifiers that the HC-MFS43K servo motor is able to link with. This is how these amplifiers may attach to the servo motor. The first way to connect is to link the servo motor’s encoder by utilizing the encoder cable to the CN2 port of the selected servo motor. The other connection is made by a power supply cable belonging to the HC-MFS43K servo motor to the U, V, and W screw terminals positioned upon the face of any of the suitable servo amplifiers.

The HC-MFS43K servo motor with a key is an ultra-low inertia servo motor with key which has a small capacity. This is the case because the servo motor is from the HC-MFS series. There are only a couple of appropriate applications which are named in this servo motor’s manual.

Here is the source material that may have been referenced:

Technical Specifications

Part Number: HC-MFS43K (HCMFS43K)
Module Type: Servo Motor with Key
Voltage: 122V
RPM: 3000
Output Wattage: 400W
Weight: 3.19lbs (1.45kg)

Related Parts

HC-UFS72K - Mitsubishi Melservo HC Servo Motor with Brake Key (HCUFS72BK)
HC-KFS43B - Mitsubishi Melservo HC Servo Motor with Brake (HCKFS43B)
MR-J4-100B - Mitsubishi Melservo MR-J4 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 HC Shipping options vary by location. Call for an accurate quote.


  • The Mitsubishi HC-MFS43K 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-HC 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-HC parts available for purchase.

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