The MR-J4-40B-RJ020 is a Mitsubishi servo amplifier from the MELSERVO-J4 series, listed under Drives > Servo Drives & Controls. It's a current-production unit, so no lifecycle concerns for new builds or line-down spares.

Mitsubishi MR-J4-40B-RJ020 Servo Amplifier, Current Producti
MPNMR-J4-40B-RJ020
Mitsubishi MELSERVO-J4 series, MR-J4-40B-RJ020 servo amplifier, 0.91 kg, Drives category.
$665.48Ref. price · indicative, final on quote
StockContact for availability
MOQ1 pcs
Sourced new & surplus through independent channelsListing updated Jul 2026
Specifications
Specifications
| Parameter | Value |
|---|---|
| Weight | 0.91 kgs |
Product details
Frequently asked questions
How do I source the MR-J4-40B-RJ020?
This is a current-production part sourced to order against an RFQ. Submit a request for current lead time and pricing.
MPN
MR-J4-40B-RJ020