The MR-J4W3-222B is a digital AC servo amplifier from Mitsubishi's MELSERVO-J4 Series, configured as a two-axis drive with 0.2 kW rated output per axis. It communicates over SSCNETIII/H, the high-speed motion network that ties it to the controller without analog noise or pulse-train drift. That network compatibility means it drops into a J4-based multi-axis system and talks at the same cycle as the rest of the servo string.
Mitsubishi MR-J4W3-222B AC Servo Amplifier, 2-Axis 0.2 kW, S
MPNMR-J4W3-222B
Mitsubishi MELSERVO-J4 Series, digital AC servo amplifier MR-J4W3-222B, 2-axis (W2), 0.2 kW rated output per axis, SSCNETIII/H compatible.
$1,793.00 – $2,670.76Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Product type | Digital AC-Servo Amplifier MR-J4W-B |
| Parameter | Value |
|---|---|
| B | SSCNETIII/H compatible |
| MR-J4 | AC servo amplifier MELSERVO-J4 Series |
| Weight | 2.3 Kg |
| Number of axes | W2 = 2 |
| Rated output [kW] | 222 = 0.2 |
| Dimensions (LxWxH) | 19.5cm x 8.5cm x 16.8cm |
Product details
Frequently asked questions
What network does this amplifier use?
It communicates over SSCNETIII/H, Mitsubishi's high-speed fiber-optic motion network. This is the standard for J4-series multi-axis systems and eliminates analog noise issues.
How many axes does the MR-J4W3-222B control?
It is a two-axis drive (W2 designation), with 0.2 kW rated output per axis. One unit replaces two single-axis amplifiers in the panel.
MPN
MR-J4W3-222B
