The MR-J4-40A-RJ: The MR-J4 series uses SSCNET III/H communication. That means the amplifier expects a fiber-optic ring from a compatible Mitsubishi controller (e.g., iQ-R, iQ-F motion modules, or a dedicated motion CPU). It is not a standalone drive with analog or pulse-train input — the motion profile is generated by the controller and sent over the fiber link.

Mitsubishi MR-J4-40A-RJ Servo Amplifier, 1.20 kg, Current Li
MPNMR-J4-40A-RJ
Mitsubishi MR-J4 series servo amplifier, MR-J4-40A-RJ, active lifecycle, 1.20 kg shipping weight.
$585.47Ref. price · indicative, final on quote
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026
Specifications
| Parameter | Value |
|---|---|
| Weight | 1.20 kgs |
Product details
MPN
MR-J4-40A-RJ